The remote Debian 10 host has packages installed that are affected by multiple vulnerabilities as referenced in the dla-3710 advisory.

    -------------------------------------------------------------------------     Debian LTS Advisory DLA-3710-1                debian-lts@lists.debian.org     https://www.debian.org/lts/security/                        Ben Hutchings     January 10, 2024                              https://wiki.debian.org/LTS
    -------------------------------------------------------------------------

    Package        : linux     Version        : 4.19.304-1     CVE ID         : CVE-2021-44879 CVE-2023-0590 CVE-2023-1077 CVE-2023-1206                      CVE-2023-1989 CVE-2023-3212 CVE-2023-3390 CVE-2023-3609                      CVE-2023-3611 CVE-2023-3772 CVE-2023-3776 CVE-2023-4206                      CVE-2023-4207 CVE-2023-4208 CVE-2023-4244 CVE-2023-4622                      CVE-2023-4623 CVE-2023-4921 CVE-2023-5717 CVE-2023-6606                      CVE-2023-6931 CVE-2023-6932 CVE-2023-25775 CVE-2023-34319                      CVE-2023-34324 CVE-2023-35001 CVE-2023-39189 CVE-2023-39192                      CVE-2023-39193 CVE-2023-39194 CVE-2023-40283 CVE-2023-42753                      CVE-2023-42754 CVE-2023-42755 CVE-2023-45863 CVE-2023-45871                      CVE-2023-51780 CVE-2023-51781 CVE-2023-51782

    Several vulnerabilities have been discovered in the Linux kernel that     may lead to a privilege escalation, denial of service or information     leaks.

    CVE-2021-44879

        Wenqing Liu reported a NULL pointer dereference in the f2fs         implementation. An attacker able to mount a specially crafted image         can take advantage of this flaw for denial of service.

    CVE-2023-0590

        Dmitry Vyukov discovered a race condition in the network scheduler         core that that can lead to a use-after-free.  A local user with         the CAP_NET_ADMIN capability in any user or network namespace         could exploit this to cause a denial of service (crash or memory         corruption) or possibly for privilege escalation.

    CVE-2023-1077

        Pietro Borrello reported a type confusion flaw in the task         scheduler.  A local user might be able to exploit this to cause a         denial of service (crash or memory corruption) or possibly for         privilege escalation.

    CVE-2023-1206

        It was discovered that the networking stack permits attackers to         force hash collisions in the IPv6 connection lookup table, which         may result in denial of service (significant increase in the cost         of lookups, increased CPU utilization).

    CVE-2023-1989

        Zheng Wang reported a race condition in the btsdio Bluetooth         adapter driver that can lead to a use-after-free.  An attacker         able to insert and remove SDIO devices can use this to cause a         denial of service (crash or memory corruption) or possibly to run         arbitrary code in the kernel.

    CVE-2023-3212

        Yang Lan discovered that missing validation in the GFS2 filesystem         could result in denial of service via a NULL pointer dereference         when mounting a malformed GFS2 filesystem.

    CVE-2023-3390

        A use-after-free flaw in the netfilter subsystem caused by         incorrect error path handling may result in denial of service or         privilege escalation.

    CVE-2023-3609, CVE-2023-3776, CVE-2023-4206, CVE-2023-4207, CVE-2023-4208

        It was discovered that a use-after-free in the cls_fw, cls_u32,         cls_route and network classifiers may result in denial of service         or potential local privilege escalation.

    CVE-2023-3611

        It was discovered that an out-of-bounds write in the traffic         control subsystem for the Quick Fair Queueing scheduler (QFQ) may         result in denial of service or privilege escalation.

    CVE-2023-3772

        Lin Ma discovered a NULL pointer dereference flaw in the XFRM         subsystem which may result in denial of service.

    CVE-2023-4244

        A race condition was found in the nftables subsystem that could         lead to a use-after-free.  A local user could exploit this to         cause a denial of service (crash), information leak, or possibly         for privilege escalation.

    CVE-2023-4622

        Bing-Jhong Billy Jheng discovered a use-after-free within the Unix         domain sockets component, which may result in local privilege         escalation.

    CVE-2023-4623

        Budimir Markovic reported a missing configuration check in the         sch_hfsc network scheduler that could lead to a use-after-free or         other problems.  A local user with the CAP_NET_ADMIN capability in         any user or network namespace could exploit this to cause a denial         of service (crash or memory corruption) or possibly for privilege         escalation.

    CVE-2023-4921

        valis reported flaws in the sch_qfq network scheduler that could         lead to a use-after-free.  A local user with the CAP_NET_ADMIN         capability in any user or network namespace could exploit this to         cause a denial of service (crash or memory corruption) or possibly         for privilege escalation.

    CVE-2023-5717

        Budimir Markovic reported a heap out-of-bounds write vulnerability         in the Linux kernel's Performance Events system caused by improper         handling of event groups, which may result in denial of service or         privilege escalation. The default settings in Debian prevent         exploitation unless more permissive settings have been applied in         the kernel.perf_event_paranoid sysctl.

    CVE-2023-6606

        j51569436 reported a potential out-of-bounds read in the CIFS         filesystem implementation.  If a CIFS filesystem is mounted from a         malicious server, the server could possibly exploit this to cause         a denial of service (crash).

    CVE-2023-6931

        Budimir Markovic reported a heap out-of-bounds write vulnerability         in the Linux kernel's Performance Events system which may result in         denial of service or privilege escalation. The default settings in         Debian prevent exploitation unless more permissive settings have         been applied in the kernel.perf_event_paranoid sysctl.

    CVE-2023-6932

        A use-after-free vulnerability in the IPv4 IGMP implementation may         result in denial of service or privilege escalation.

    CVE-2023-25775

        Ivan D Barrera, Christopher Bednarz, Mustafa Ismail and Shiraz         Saleem discovered that improper access control in the Intel Ethernet         Controller RDMA driver may result in privilege escalation.

    CVE-2023-34319

        Ross Lagerwall discovered a buffer overrun in Xen's netback driver         which may allow a Xen guest to cause denial of service to the         virtualisation host by sending malformed packets.

    CVE-2023-34324

        Marek Marczykowski-Gorecki reported a possible deadlock in the Xen         guests event channel code which may allow a malicious guest         administrator to cause a denial of service.

    CVE-2023-35001

        Tanguy DUBROCA discovered an out-of-bounds reads and write flaw in         the Netfilter nf_tables implementation when processing an         nft_byteorder expression, which may result in local privilege         escalation for a user with the CAP_NET_ADMIN capability in any         user or network namespace.

    CVE-2023-39189, CVE-2023-39192, CVE-2023-39193

        Lucas Leong of Trend Micro Zero Day Initiative reported missing         bounds checks in the nfnetlink_osf, xt_u32, and xt_sctp netfilter         modules.  A local user with the CAP_NET_ADMIN capability in any         user or network namespace could exploit these to leak sensitive         information from the kernel or for denial of service (crash).

    CVE-2023-39194

        Lucas Leong of Trend Micro Zero Day Initiative reported a missing         bounds check in the xfrm (IPsec) subsystem.  A local user with the         CAP_NET_ADMIN capability in any user or network namespace could         exploit this to leak sensitive information from the kernel or for         denial of service (crash).

    CVE-2023-40283

        A use-after-free was discovered in Bluetooth L2CAP socket         handling.

    CVE-2023-42753

        Kyle Zeng discovered an off-by-one error in the netfilter ipset         subsystem which could lead to out-of-bounds memory access.  A         local user with the CAP_NET_ADMIN capability in any user or         network namespace could exploit this to cause a denial of service         (memory corruption or crash) and possibly for privilege         escalation.

    CVE-2023-42754

        Kyle Zeng discovered a flaw in the IPv4 implementation which could         lead to a null pointer deference.  A local user could exploit this         for denial of service (crash).

    CVE-2023-42755

        Kyle Zeng discovered missing configuration validation in the         cls_rsvp network classifier which could lead to out-of-bounds         reads.  A local user with the CAP_NET_ADMIN capability in any user         or network namespace could exploit this to cause a denial of         service (crash) or to leak sensitive information.

        This flaw has been mitigated by removing the cls_rsvp classifier.

    CVE-2023-45863

        A race condition in library routines for handling generic kernel         objects may result in an out-of-bounds write in the         fill_kobj_path() function.

    CVE-2023-45871

        Manfred Rudigier reported a flaw in the igb network driver for         Intel Gigabit Ethernet interfaces.  When the rx-all feature was         enabled on such a network interface, an attacker on the same         network segment could send packets that would overflow a receive         buffer, leading to a denial of service (crash or memory         corruption) or possibly remote code execution.

    CVE-2023-51780

        It was discovered that a race condition in the ATM (Asynchronous         Transfer Mode) subsystem may lead to a use-after-free.

    CVE-2023-51781

        It was discovered that a race condition in the Appletalk subsystem         may lead to a use-after-free.

    CVE-2023-51782

        It was discovered that a race condition in the Amateur Radio X.25         PLP (Rose) support may lead to a use-after-free. This module is not         auto-loaded on Debian systems, so this issue only affects systems         where it is explicitly loaded.

    For Debian 10 buster, these problems have been fixed in version     4.19.304-1.  This update additionally includes many more bug fixes     from stable updates 4.19.290-4.19.304 inclusive.

    We recommend that you upgrade your linux packages.

    For the detailed security status of linux please refer to     its security tracker page at:
    https://security-tracker.debian.org/tracker/linux

    Further information about Debian LTS security advisories, how to apply     these updates to your system and frequently asked questions can be     found at: https://wiki.debian.org/LTS     Attachment:
    signature.asc     Description: PGP signature

Tenable has extracted the preceding description block directly from the Debian security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

The version of kernel installed on the remote host is prior to 4.14.336-178.554. It is, therefore, affected by a vulnerability as referenced in the ALAS-2024-1906 advisory.

    An out-of-bounds read vulnerability was found in smbCalcSize in fs/smb/client/netmisc.c in the Linux     Kernel. This issue could allow a local attacker to crash the system or leak internal kernel information.
    (CVE-2023-6606)

Tenable has extracted the preceding description block directly from the tested product security advisory.

Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version number.

The remote Ubuntu 20.04 LTS host has a package installed that is affected by multiple vulnerabilities as referenced in the USN-6605-2 advisory.

    Lin Ma discovered that the netfilter subsystem in the Linux kernel did not properly validate network     family support while creating a new netfilter table. A local attacker could use this to cause a denial of     service or possibly execute arbitrary code. (CVE-2023-6040)

    It was discovered that the CIFS network file system implementation in the Linux kernel did not properly     validate the server frame size in certain situation, leading to an out-of-bounds read vulnerability. An     attacker could use this to construct a malicious CIFS image that, when operated on, could cause a denial     of service (system crash) or possibly expose sensitive information. (CVE-2023-6606)

    Budimir Markovic, Lucas De Marchi, and Pengfei Xu discovered that the perf subsystem in the Linux kernel     did not properly validate all event sizes when attaching new events, leading to an out-of-bounds write     vulnerability. A local attacker could use this to cause a denial of service (system crash) or possibly     execute arbitrary code. (CVE-2023-6931)

    It was discovered that the IGMP protocol implementation in the Linux kernel contained a race condition,     leading to a use-after-free vulnerability. A local attacker could use this to cause a denial of service     (system crash) or possibly execute arbitrary code. (CVE-2023-6932)

Tenable has extracted the preceding description block directly from the Ubuntu security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

According to the versions of the kernel packages installed, the EulerOS Virtualization installation on the remote host is affected by the following vulnerabilities :

  - An issue was discovered in the Linux kernel through 6.0.10. In drivers/media/dvb-core/dvb_ca_en50221.c, a     use-after-free can occur is there is a disconnect after an open, because of the lack of a wait_event.
    (CVE-2022-45919)

  - A use-after-free vulnerability in the Linux Kernel traffic control index filter (tcindex) can be exploited     to achieve local privilege escalation. The tcindex_delete function which does not properly deactivate     filters in case of a perfect hashes while deleting the underlying structure which can later lead to double     freeing the structure. A local attacker user can use this vulnerability to elevate its privileges to root.
    We recommend upgrading past commit 8c710f75256bb3cf05ac7b1672c82b92c43f3d28. (CVE-2023-1829)

  - Improper access control in the Intel(R) Ethernet Controller RDMA driver for linux before version 1.9.30     may allow an unauthenticated user to potentially enable escalation of privilege via network access.
    (CVE-2023-25775)

  - An issue was discovered in drivers/mtd/ubi/cdev.c in the Linux kernel 6.2. There is a divide-by-zero error     in do_div(sz,mtd->erasesize), used indirectly by ctrl_cdev_ioctl, when mtd->erasesize is 0.
    (CVE-2023-31085)

  - A flaw was found in the Netfilter subsystem in the Linux kernel. The nfnl_osf_add_callback function did     not validate the user mode controlled opt_num field. This flaw allows a local privileged (CAP_NET_ADMIN)     attacker to trigger an out-of-bounds read, leading to a crash or information disclosure. (CVE-2023-39189)

  - A flaw was found in the Netfilter subsystem in the Linux kernel. The xt_u32 module did not validate the     fields in the xt_u32 structure. This flaw allows a local privileged attacker to trigger an out-of-bounds     read by setting the size fields with a value beyond the array boundaries, leading to a crash or     information disclosure. (CVE-2023-39192)

  - A flaw was found in the Netfilter subsystem in the Linux kernel. The sctp_mt_check did not validate the     flag_count field. This flaw allows a local privileged (CAP_NET_ADMIN) attacker to trigger an out-of-bounds     read, leading to a crash or information disclosure. (CVE-2023-39193)

  - A flaw was found in the XFRM subsystem in the Linux kernel. The specific flaw exists within the processing     of state filters, which can result in a read past the end of an allocated buffer. This flaw allows a local     privileged (CAP_NET_ADMIN) attacker to trigger an out-of-bounds read, potentially leading to an     information disclosure. (CVE-2023-39194)

  - A race condition was found in the QXL driver in the Linux kernel. The qxl_mode_dumb_create() function     dereferences the qobj returned by the qxl_gem_object_create_with_handle(), but the handle is the only one     holding a reference to it. This flaw allows an attacker to guess the returned handle value and trigger a     use-after-free issue, potentially leading to a denial of service or privilege escalation. (CVE-2023-39198)

  - An array indexing vulnerability was found in the netfilter subsystem of the Linux kernel. A missing macro     could lead to a miscalculation of the `h->nets` array offset, providing attackers with the primitive to     arbitrarily increment/decrement a memory buffer out-of-bound. This issue may allow a local user to crash     the system or potentially escalate their privileges on the system. (CVE-2023-42753)

  - A NULL pointer dereference flaw was found in the Linux kernel ipv4 stack. The socket buffer (skb) was     assumed to be associated with a device before calling __ip_options_compile, which is not always the case     if the skb is re-routed by ipvs. This issue may allow a local user with CAP_NET_ADMIN privileges to crash     the system. (CVE-2023-42754)

  - An issue was discovered in drivers/usb/storage/ene_ub6250.c for the ENE UB6250 reader driver in the Linux     kernel before 6.2.5. An object could potentially extend beyond the end of an allocation. (CVE-2023-45862)

  - An issue was discovered in drivers/net/ethernet/intel/igb/igb_main.c in the IGB driver in the Linux kernel     before 6.5.3. A buffer size may not be adequate for frames larger than the MTU. (CVE-2023-45871)

  - A use-after-free vulnerability in the Linux kernel's af_unix component can be exploited to achieve local     privilege escalation. The unix_stream_sendpage() function tries to add data to the last skb in the peer's     recv queue without locking the queue. Thus there is a race where unix_stream_sendpage() could access an     skb locklessly that is being released by garbage collection, resulting in use-after-free. We recommend     upgrading past commit 790c2f9d15b594350ae9bca7b236f2b1859de02c. (CVE-2023-4622)

  - A use-after-free vulnerability in the Linux kernel's net/sched: sch_hfsc (HFSC qdisc traffic control)     component can be exploited to achieve local privilege escalation. If a class with a link-sharing curve     (i.e. with the HFSC_FSC flag set) has a parent without a link-sharing curve, then init_vf() will call     vttree_insert() on the parent, but vttree_remove() will be skipped in update_vf(). This leaves a dangling     pointer that can cause a use-after-free. We recommend upgrading past commit     b3d26c5702c7d6c45456326e56d2ccf3f103e60f. (CVE-2023-4623)

  - A use-after-free vulnerability in the Linux kernel's net/sched: sch_qfq component can be exploited to     achieve local privilege escalation. When the plug qdisc is used as a class of the qfq qdisc, sending     network packets triggers use-after-free in qfq_dequeue() due to the incorrect .peek handler of sch_plug     and lack of error checking in agg_dequeue(). We recommend upgrading past commit     8fc134fee27f2263988ae38920bc03da416b03d8. (CVE-2023-4921)

  - A heap out-of-bounds write vulnerability in the Linux kernel's Linux Kernel Performance Events (perf)     component can be exploited to achieve local privilege escalation. If perf_read_group() is called while an     event's sibling_list is smaller than its child's sibling_list, it can increment or write to memory     locations outside of the allocated buffer. We recommend upgrading past commit     32671e3799ca2e4590773fd0e63aaa4229e50c06. (CVE-2023-5717)

  - A race condition was found in the GSM 0710 tty multiplexor in the Linux kernel. This issue occurs when two     threads execute the GSMIOC_SETCONF ioctl on the same tty file descriptor with the gsm line discipline     enabled, and can lead to a use-after-free problem on a struct gsm_dlci while restarting the gsm mux. This     could allow a local unprivileged user to escalate their privileges on the system. (CVE-2023-6546)

  - An out-of-bounds read vulnerability was found in smbCalcSize in fs/smb/client/netmisc.c in the Linux     Kernel. This issue could allow a local attacker to crash the system or leak internal kernel information.
    (CVE-2023-6606)

  - A heap out-of-bounds write vulnerability in the Linux kernel's Performance Events system component can be     exploited to achieve local privilege escalation. A perf_event's read_size can overflow, leading to an heap     out-of-bounds increment or write in perf_read_group(). We recommend upgrading past commit     382c27f4ed28f803b1f1473ac2d8db0afc795a1b. (CVE-2023-6931)

  - A use-after-free vulnerability in the Linux kernel's ipv4: igmp component can be exploited to achieve     local privilege escalation. A race condition can be exploited to cause a timer be mistakenly registered on     a RCU read locked object which is freed by another thread. We recommend upgrading past commit     e2b706c691905fe78468c361aaabc719d0a496f1. (CVE-2023-6932)

Note that Tenable Network Security has extracted the preceding description block directly from the EulerOS security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.

The remote SUSE Linux SLED12 / SLED_SAP12 / SLES12 / SLES_SAP12 host has packages installed that are affected by multiple vulnerabilities as referenced in the SUSE-SU-2024:0117-1 advisory.

    The SUSE Linux Enterprise 12 SP5 kernel was updated to receive various security bugfixes.


    The following security bugs were fixed:

    - CVE-2022-2586: Fixed a use-after-free which can be triggered when a nft table is deleted (bsc#1202095).
    - CVE-2023-6121: Fixed an information leak via dmesg when receiving a crafted packet in the NVMe-oF/TCP     subsystem (bsc#1217250).
    - CVE-2023-6606: Fixed an out of bounds read in the SMB client when receiving a malformed length from a     server (bsc#1217947).
    - CVE-2023-6610: Fixed an out of bounds read in the SMB client when printing debug information     (bsc#1217946).
    - CVE-2023-6931: Fixed an out of bounds write in the Performance Events subsystem when adding a new event     (bsc#1214158 bsc#1218258).
    - CVE-2023-6932: Fixed a use-after-free issue when receiving an IGMP query packet due to reference count     mismanagement (bsc#1218253).
    - CVE-2020-26555: Fixed an issue during BR/EDR PIN code pairing in the Bluetooth subsystem that would     allow replay attacks (bsc#1179610 bsc#1215237).
    - CVE-2023-51779: Fixed a use-after-free issue due to a race condition during Bluetooth message reception     (bsc#1218559).


Tenable has extracted the preceding description block directly from the SUSE security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

The remote SUSE Linux SLES12 / SLES_SAP12 host has packages installed that are affected by multiple vulnerabilities as referenced in the SUSE-SU-2024:0113-1 advisory.

    The SUSE Linux Enterprise 12 SP5 Azure kernel was updated to receive various security and bugfixes.


    The following security bugs were fixed:

    - CVE-2023-6610: Fixed an out of bounds read in the SMB client when printing debug information     (bsc#1217946).
    - CVE-2022-2586: Fixed a use-after-free which can be triggered when a nft table is deleted (bsc#1202095).
    - CVE-2023-51779: Fixed a use-after-free because of a bt_sock_ioctl race condition in bt_sock_recvmsg     (bsc#1218559).
    - CVE-2020-26555: Fixed Bluetooth legacy BR/EDR PIN code pairing in Bluetooth Core Specification 1.0B that     may permit an unauthenticated nearby device to spoof the BD_ADDR of the peer device to complete pairing     without knowledge of the PIN (bsc#1179610 bsc#1215237).
    - CVE-2023-6931: Fixed a heap out-of-bounds write vulnerability in the Linux kernel's Performance Events     system component that could lead to local privilege escalation. (bsc#1218258).
    - CVE-2023-6606: Fixed an out of bounds read in the SMB client when receiving a malformed length from a     server (bsc#1217947).
    - CVE-2023-6932: Fixed a use-after-free vulnerability in the Linux kernel's ipv4: igmp component that     could lead to local privilege escalation (bsc#1218253).
    - CVE-2023-6121: Fixed an out-of-bounds read vulnerability in the NVMe-oF/TCP subsystem that could lead to     information leak (bsc#1217250).


Tenable has extracted the preceding description block directly from the SUSE security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

According to the versions of the kernel packages installed, the EulerOS installation on the remote host is affected by the following vulnerabilities :

  - An issue was discovered in the Linux kernel through 6.0.10. In drivers/media/dvb-core/dvb_ca_en50221.c, a     use-after-free can occur is there is a disconnect after an open, because of the lack of a wait_event.
    (CVE-2022-45919)

  - A use-after-free vulnerability in the Linux Kernel traffic control index filter (tcindex) can be exploited     to achieve local privilege escalation. The tcindex_delete function which does not properly deactivate     filters in case of a perfect hashes while deleting the underlying structure which can later lead to double     freeing the structure. A local attacker user can use this vulnerability to elevate its privileges to root.
    We recommend upgrading past commit 8c710f75256bb3cf05ac7b1672c82b92c43f3d28. (CVE-2023-1829)

  - Improper access control in the Intel(R) Ethernet Controller RDMA driver for linux before version 1.9.30     may allow an unauthenticated user to potentially enable escalation of privilege via network access.
    (CVE-2023-25775)

  - An issue was discovered in drivers/mtd/ubi/cdev.c in the Linux kernel 6.2. There is a divide-by-zero error     in do_div(sz,mtd->erasesize), used indirectly by ctrl_cdev_ioctl, when mtd->erasesize is 0.
    (CVE-2023-31085)

  - A flaw was found in the Netfilter subsystem in the Linux kernel. The nfnl_osf_add_callback function did     not validate the user mode controlled opt_num field. This flaw allows a local privileged (CAP_NET_ADMIN)     attacker to trigger an out-of-bounds read, leading to a crash or information disclosure. (CVE-2023-39189)

  - A flaw was found in the Netfilter subsystem in the Linux kernel. The xt_u32 module did not validate the     fields in the xt_u32 structure. This flaw allows a local privileged attacker to trigger an out-of-bounds     read by setting the size fields with a value beyond the array boundaries, leading to a crash or     information disclosure. (CVE-2023-39192)

  - A flaw was found in the Netfilter subsystem in the Linux kernel. The sctp_mt_check did not validate the     flag_count field. This flaw allows a local privileged (CAP_NET_ADMIN) attacker to trigger an out-of-bounds     read, leading to a crash or information disclosure. (CVE-2023-39193)

  - A flaw was found in the XFRM subsystem in the Linux kernel. The specific flaw exists within the processing     of state filters, which can result in a read past the end of an allocated buffer. This flaw allows a local     privileged (CAP_NET_ADMIN) attacker to trigger an out-of-bounds read, potentially leading to an     information disclosure. (CVE-2023-39194)

  - A race condition was found in the QXL driver in the Linux kernel. The qxl_mode_dumb_create() function     dereferences the qobj returned by the qxl_gem_object_create_with_handle(), but the handle is the only one     holding a reference to it. This flaw allows an attacker to guess the returned handle value and trigger a     use-after-free issue, potentially leading to a denial of service or privilege escalation. (CVE-2023-39198)

  - An array indexing vulnerability was found in the netfilter subsystem of the Linux kernel. A missing macro     could lead to a miscalculation of the `h->nets` array offset, providing attackers with the primitive to     arbitrarily increment/decrement a memory buffer out-of-bound. This issue may allow a local user to crash     the system or potentially escalate their privileges on the system. (CVE-2023-42753)

  - A NULL pointer dereference flaw was found in the Linux kernel ipv4 stack. The socket buffer (skb) was     assumed to be associated with a device before calling __ip_options_compile, which is not always the case     if the skb is re-routed by ipvs. This issue may allow a local user with CAP_NET_ADMIN privileges to crash     the system. (CVE-2023-42754)

  - An issue was discovered in drivers/usb/storage/ene_ub6250.c for the ENE UB6250 reader driver in the Linux     kernel before 6.2.5. An object could potentially extend beyond the end of an allocation. (CVE-2023-45862)

  - An issue was discovered in drivers/net/ethernet/intel/igb/igb_main.c in the IGB driver in the Linux kernel     before 6.5.3. A buffer size may not be adequate for frames larger than the MTU. (CVE-2023-45871)

  - A use-after-free vulnerability in the Linux kernel's af_unix component can be exploited to achieve local     privilege escalation. The unix_stream_sendpage() function tries to add data to the last skb in the peer's     recv queue without locking the queue. Thus there is a race where unix_stream_sendpage() could access an     skb locklessly that is being released by garbage collection, resulting in use-after-free. We recommend     upgrading past commit 790c2f9d15b594350ae9bca7b236f2b1859de02c. (CVE-2023-4622)

  - A use-after-free vulnerability in the Linux kernel's net/sched: sch_hfsc (HFSC qdisc traffic control)     component can be exploited to achieve local privilege escalation. If a class with a link-sharing curve     (i.e. with the HFSC_FSC flag set) has a parent without a link-sharing curve, then init_vf() will call     vttree_insert() on the parent, but vttree_remove() will be skipped in update_vf(). This leaves a dangling     pointer that can cause a use-after-free. We recommend upgrading past commit     b3d26c5702c7d6c45456326e56d2ccf3f103e60f. (CVE-2023-4623)

  - A use-after-free vulnerability in the Linux kernel's net/sched: sch_qfq component can be exploited to     achieve local privilege escalation. When the plug qdisc is used as a class of the qfq qdisc, sending     network packets triggers use-after-free in qfq_dequeue() due to the incorrect .peek handler of sch_plug     and lack of error checking in agg_dequeue(). We recommend upgrading past commit     8fc134fee27f2263988ae38920bc03da416b03d8. (CVE-2023-4921)

  - A heap out-of-bounds write vulnerability in the Linux kernel's Linux Kernel Performance Events (perf)     component can be exploited to achieve local privilege escalation. If perf_read_group() is called while an     event's sibling_list is smaller than its child's sibling_list, it can increment or write to memory     locations outside of the allocated buffer. We recommend upgrading past commit     32671e3799ca2e4590773fd0e63aaa4229e50c06. (CVE-2023-5717)

  - A race condition was found in the GSM 0710 tty multiplexor in the Linux kernel. This issue occurs when two     threads execute the GSMIOC_SETCONF ioctl on the same tty file descriptor with the gsm line discipline     enabled, and can lead to a use-after-free problem on a struct gsm_dlci while restarting the gsm mux. This     could allow a local unprivileged user to escalate their privileges on the system. (CVE-2023-6546)

  - An out-of-bounds read vulnerability was found in smbCalcSize in fs/smb/client/netmisc.c in the Linux     Kernel. This issue could allow a local attacker to crash the system or leak internal kernel information.
    (CVE-2023-6606)

  - A heap out-of-bounds write vulnerability in the Linux kernel's Performance Events system component can be     exploited to achieve local privilege escalation. A perf_event's read_size can overflow, leading to an heap     out-of-bounds increment or write in perf_read_group(). We recommend upgrading past commit     382c27f4ed28f803b1f1473ac2d8db0afc795a1b. (CVE-2023-6931)

  - A use-after-free vulnerability in the Linux kernel's ipv4: igmp component can be exploited to achieve     local privilege escalation. A race condition can be exploited to cause a timer be mistakenly registered on     a RCU read locked object which is freed by another thread. We recommend upgrading past commit     e2b706c691905fe78468c361aaabc719d0a496f1. (CVE-2023-6932)

Note that Tenable Network Security has extracted the preceding description block directly from the EulerOS security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.

The remote Redhat Enterprise Linux 8 host has packages installed that are affected by multiple vulnerabilities as referenced in the RHSA-2024:1188 advisory.

    The kernel packages contain the Linux kernel, the core of any Linux operating system.

    Security Fix(es):

    * kernel: out-of-bounds write in hw_atl_utils_fw_rpc_wait() in     drivers/net/ethernet/aquantia/atlantic/hw_atl/hw_atl_utils.c (CVE-2021-43975)

    * kernel: memory leak in drivers/hid/hid-elo.c (CVE-2022-27950)

    * kernel: use-after-free in tc_new_tfilter() in net/sched/cls_api.c (CVE-2022-1055)

    * kernel: use-after-free when psi trigger is destroyed while being polled (CVE-2022-2938)

    * kernel: u8 overflow problem in cfg80211_update_notlisted_nontrans() (CVE-2022-41674)

    * kernel: use-after-free in bss_ref_get in net/wireless/scan.c (CVE-2022-42720)

    * kernel: BSS list corruption in cfg80211_add_nontrans_list in net/wireless/scan.c (CVE-2022-42721)

    * kernel: Denial of service in beacon protection for P2P-device (CVE-2022-42722)

    * kernel: KVM: x86/mmu: race condition in direct_page_fault() (CVE-2022-45869)

    * kernel: x86/mm: Randomize per-cpu entry area (CVE-2023-0597)

    * kernel: Out-Of-Bounds Read vulnerability in smbCalcSize (CVE-2023-6606)

    * kernel: refcount leak in ctnetlink_create_conntrack() (CVE-2023-7192)

    * kernel: CIFS Filesystem Decryption Improper Input Validation Remote Code Execution Vulnerability in     function receive_encrypted_standard of client (CVE-2024-0565)

    * kernel: use-after-free during a race condition between a nonblocking atomic commit and a driver unload     in drivers/gpu/drm/drm_atomic.c (CVE-2023-51043)

    Bug Fix(es):

    * kernel: u8 overflow problem in cfg80211_update_notlisted_nontrans() (JIRA:RHEL-18732)

    * kernel: use-after-free in bss_ref_get in net/wireless/scan.c (JIRA:RHEL-18733)

    * kernel: BSS list corruption in cfg80211_add_nontrans_list in net/wireless/scan.c (JIRA:RHEL-18734)

    * kernel: Denial of service in beacon protection for P2P-device (JIRA:RHEL-18735)

    * kernel: x86/mm: Randomize per-cpu entry area (JIRA:RHEL-18817)

    * kernel: KVM: x86/mmu: race condition in direct_page_fault() (JIRA:RHEL-18829)

    * kernel: refcount leak in ctnetlink_create_conntrack() (JIRA:RHEL-20297)

    * kernel: use-after-free in tc_new_tfilter() in net/sched/cls_api.c (JIRA:RHEL-20363)

    * kernel: Out-Of-Bounds Read vulnerability in smbCalcSize (JIRA:RHEL-21660)

    * kernel: CIFS Filesystem Decryption Improper Input Validation Remote Code Execution Vulnerability in     function receive_encrypted_standard of client (JIRA:RHEL-22075)

    * kernel: use-after-free during a race condition between a nonblocking atomic commit and a driver unload     in drivers/gpu/drm/drm_atomic.c (JIRA:RHEL-23475)

    * kernel: memory leak in drivers/hid/hid-elo.c (JIRA:RHEL-18557)

    * kernel: out-of-bounds write in hw_atl_utils_fw_rpc_wait() in     drivers/net/ethernet/aquantia/atlantic/hw_atl/hw_atl_utils.c (JIRA:RHEL-18798)

    * kernel: use-after-free when psi trigger is destroyed while being polled (JIRA:RHEL-21919)

    * [RHVH] Migration hangs between RHVH release bellow 4.5.1 and RHVH over or equal 4.5.2 release     (JIRA:RHEL-23061)

    * backport smartpqi: fix disable_managed_interrupts (JIRA:RHEL-26137)

    Enhancement(s):

    * [MCHP 8.7 FEAT] Update smartpqi driver to latest upstream Second Set of Patches (JIRA:RHEL-21592)

    * [IBM 8.10 FEAT] Upgrade the qeth driver to latest from upstream, e.g. kernel 6.4 (JIRA:RHEL-25809)

Tenable has extracted the preceding description block directly from the Red Hat Enterprise Linux security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

The remote MiracleLinux 9 host has packages installed that are affected by multiple vulnerabilities as referenced in the AXSA:2024-7637:09 advisory.

    * kernel: inactive elements in nft_pipapo_walk (CVE-2023-6817)
      * kernel: netfilter: use-after-free in nft_trans_gc_catchall_sync leads to privilege escalation     (CVE-2024-0193)
      * kernel: ktls overwrites readonly memory pages when using function splice with a ktls socket as     destination (CVE-2024-0646)
      * kernel: Use-after-free in nft_verdict_dump due to a race between set GC and transaction     (CVE-2023-4244)
      * kernel: A heap out-of-bounds write when function perf_read_group is called and sibling_list is smaller     than its child's sibling_list (CVE-2023-5717)
      * kernel: NULL pointer dereference in nvmet_tcp_build_iovec (CVE-2023-6356)
      * kernel: NULL pointer dereference in nvmet_tcp_execute_request (CVE-2023-6535)
      * kernel: NULL pointer dereference in __nvmet_req_complete (CVE-2023-6536)
      * kernel: Out-Of-Bounds Read vulnerability in smbCalcSize (CVE-2023-6606)
      * kernel: OOB Access in smb2_dump_detail (CVE-2023-6610)
      * kernel: use-after-free in amdgpu_cs_wait_all_fences in drivers/gpu/drm/amd/amdgpu/amdgpu_cs.c     (CVE-2023-51042)

Tenable has extracted the preceding description block directly from the MiracleLinux security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

The remote Ubuntu 20.04 LTS / 22.04 LTS host has a package installed that is affected by multiple vulnerabilities as referenced in the USN-6609-1 advisory.

    Lin Ma discovered that the netfilter subsystem in the Linux kernel did not properly validate network     family support while creating a new netfilter table. A local attacker could use this to cause a denial of     service or possibly execute arbitrary code. (CVE-2023-6040)

    It was discovered that the CIFS network file system implementation in the Linux kernel did not properly     validate the server frame size in certain situation, leading to an out-of-bounds read vulnerability. An     attacker could use this to construct a malicious CIFS image that, when operated on, could cause a denial     of service (system crash) or possibly expose sensitive information. (CVE-2023-6606)

    Xingyuan Mo discovered that the netfilter subsystem in the Linux kernel did not properly handle inactive     elements in its PIPAPO data structure, leading to a use-after-free vulnerability. A local attacker could     use this to cause a denial of service (system crash) or possibly execute arbitrary code. (CVE-2023-6817)

    Budimir Markovic, Lucas De Marchi, and Pengfei Xu discovered that the perf subsystem in the Linux kernel     did not properly validate all event sizes when attaching new events, leading to an out-of-bounds write     vulnerability. A local attacker could use this to cause a denial of service (system crash) or possibly     execute arbitrary code. (CVE-2023-6931)

    It was discovered that the IGMP protocol implementation in the Linux kernel contained a race condition,     leading to a use-after-free vulnerability. A local attacker could use this to cause a denial of service     (system crash) or possibly execute arbitrary code. (CVE-2023-6932)

    Kevin Rich discovered that the netfilter subsystem in the Linux kernel did not properly check deactivated     elements in certain situations, leading to a use-after-free vulnerability. A local attacker could use this     to cause a denial of service (system crash) or possibly execute arbitrary code. (CVE-2024-0193)

Tenable has extracted the preceding description block directly from the Ubuntu security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

The remote Ubuntu 22.04 LTS host has a package installed that is affected by multiple vulnerabilities as referenced in the USN-6608-2 advisory.

    It was discovered that the CIFS network file system implementation in the Linux kernel did not properly     validate the server frame size in certain situation, leading to an out-of-bounds read vulnerability. An     attacker could use this to construct a malicious CIFS image that, when operated on, could cause a denial     of service (system crash) or possibly expose sensitive information. (CVE-2023-6606)

    Xingyuan Mo discovered that the netfilter subsystem in the Linux kernel did not properly handle inactive     elements in its PIPAPO data structure, leading to a use-after-free vulnerability. A local attacker could     use this to cause a denial of service (system crash) or possibly execute arbitrary code. (CVE-2023-6817)

    Budimir Markovic, Lucas De Marchi, and Pengfei Xu discovered that the perf subsystem in the Linux kernel     did not properly validate all event sizes when attaching new events, leading to an out-of-bounds write     vulnerability. A local attacker could use this to cause a denial of service (system crash) or possibly     execute arbitrary code. (CVE-2023-6931)

    It was discovered that the IGMP protocol implementation in the Linux kernel contained a race condition,     leading to a use-after-free vulnerability. A local attacker could use this to cause a denial of service     (system crash) or possibly execute arbitrary code. (CVE-2023-6932)

    Kevin Rich discovered that the netfilter subsystem in the Linux kernel did not properly check deactivated     elements in certain situations, leading to a use-after-free vulnerability. A local attacker could use this     to cause a denial of service (system crash) or possibly execute arbitrary code. (CVE-2024-0193)

Tenable has extracted the preceding description block directly from the Ubuntu security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

The remote Redhat Enterprise Linux 9 host has packages installed that are affected by multiple vulnerabilities as referenced in the RHSA-2024:1248 advisory.

    The kernel packages contain the Linux kernel, the core of any Linux operating system.

    Security Fix(es):

    * kernel: inactive elements in nft_pipapo_walk (CVE-2023-6817)

    * kernel: netfilter: use-after-free in nft_trans_gc_catchall_sync leads to privilege escalation     (CVE-2024-0193)

    * kernel: ktls overwrites readonly memory pages when using function splice with a ktls socket as     destination (CVE-2024-0646)

    * kernel: Use-after-free in nft_verdict_dump due to a race between set GC and transaction (CVE-2023-4244)

    * kernel: A heap out-of-bounds write when function perf_read_group is called and sibling_list is smaller     than its child's sibling_list (CVE-2023-5717)

    * kernel: NULL pointer dereference in nvmet_tcp_build_iovec (CVE-2023-6356)

    * kernel: NULL pointer dereference in nvmet_tcp_execute_request (CVE-2023-6535)

    * kernel: NULL pointer dereference in __nvmet_req_complete (CVE-2023-6536)

    * kernel: Out-Of-Bounds Read vulnerability in smbCalcSize (CVE-2023-6606)

    * kernel: OOB Access in smb2_dump_detail (CVE-2023-6610)

    * kernel: use-after-free in amdgpu_cs_wait_all_fences in drivers/gpu/drm/amd/amdgpu/amdgpu_cs.c     (CVE-2023-51042)

    For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and     other related information, refer to the CVE page(s) listed in the References section.

Tenable has extracted the preceding description block directly from the Red Hat Enterprise Linux security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

According to the versions of the kernel packages installed, the EulerOS installation on the remote host is affected by the following vulnerabilities :

    In the Linux kernel before 6.4.5, drivers/gpu/drm/drm_atomic.c has a use-after-free during a race     condition between a nonblocking atomic commit and a driver unload.(CVE-2023-51043)

    A flaw was found in the Netfilter subsystem in the Linux kernel. The issue is in the nft_byteorder_eval()     function, where the code iterates through a loop and writes to the `dst` array. On each iteration, 8 bytes     are written, but `dst` is an array of u32, so each element only has space for 4 bytes. That means every     iteration overwrites part of the previous element corrupting this array of u32. This flaw allows a local     user to cause a denial of service or potentially break NetFilter functionality.(CVE-2024-0607)

    A denial of service vulnerability due to a deadlock was found in sctp_auto_asconf_init in     net/sctp/socket.c in the Linux kernels SCTP subsystem. This flaw allows guests with local user     privileges to trigger a deadlock and potentially crash the system.(CVE-2024-0639)

    A Null pointer dereference problem was found in ida_free in lib/idr.c in the Linux Kernel. This issue may     allow an attacker using this library to cause a denial of service problem due to a missing check at a     function return.(CVE-2023-6915)

    A use-after-free issue was found in igmp_start_timer in net/ipv4/igmp.c in the network sub-component in     the Linux Kernel. This flaw allows a local user to observe a refcnt use-after-free issue when receiving an     igmp query packet, leading to a kernel information leak.(CVE-2024-0584)

    Integer Overflow or Wraparound vulnerability in openEuler kernel on Linux (filesystem modules) allows     Forced Integer Overflow.This issue affects openEuler kernel: from 4.19.90 before 4.19.90-2401.3, from     5.10.0-60.18.0 before 5.10.0-183.0.0.(CVE-2021-33631)

    A denial of service vulnerability was found in tipc_crypto_key_revoke in net/tipc/crypto.c in the Linux     kernels TIPC subsystem. This flaw allows guests with local user privileges to trigger a deadlock and     potentially crash the system.(CVE-2024-0641)

    A use-after-free flaw was found in the Linux Kernel due to a race problem in the unix garbage collector's     deletion of SKB races with unix_stream_read_generic() on the socket that the SKB is queued     on.(CVE-2023-6531)

    An out-of-bounds access vulnerability involving netfilter was reported and fixed as: f1082dd31fe4     (netfilter: nf_tables: Reject tables of unsupported family); While creating a new netfilter table, lack of     a safeguard against invalid nf_tables family (pf) values within `nf_tables_newtable` function enables an     attacker to achieve out-of-bounds access.(CVE-2023-6040)

    An out-of-bounds memory read flaw was found in receive_encrypted_standard in fs/smb/client/smb2ops.c in     the SMB Client sub-component in the Linux Kernel. This issue occurs due to integer underflow on the memcpy     length, leading to a denial of service.(CVE-2024-0565)

    An issue was discovered in drivers/input/input.c in the Linux kernel before 5.17.10. An attacker can cause     a denial of service (panic) because input_set_capability mishandles the situation in which an event code     falls outside of a bitmap.(CVE-2022-48619)

    A vulnerability was found in vhost_new_msg in drivers/vhost/vhost.c in the Linux kernel, which does not     properly initialize memory in messages passed between virtual guests and the host operating system in the     vhost/vhost.c:vhost_new_msg() function. This issue can allow local privileged users to read some kernel     memory contents when reading from the /dev/vhost-net device file.(CVE-2024-0340)

    A memory leak problem was found in ctnetlink_create_conntrack in net/netfilter/nf_conntrack_netlink.c in     the Linux Kernel. This issue may allow a local attacker with CAP_NET_ADMIN privileges to cause a denial of     service (DoS) attack due to a refcount overflow.(CVE-2023-7192)

    A use-after-free flaw was found in the netfilter subsystem of the Linux kernel. If the catchall element is     garbage-collected when the pipapo set is removed, the element can be deactivated twice. This can cause a     use-after-free issue on an NFT_CHAIN object or NFT_OBJECT object, allowing a local unprivileged user with     CAP_NET_ADMIN capability to escalate their privileges on the system.(CVE-2024-0193)

    A race condition was found in the GSM 0710 tty multiplexor in the Linux kernel. This issue occurs when two     threads execute the GSMIOC_SETCONF ioctl on the same tty file descriptor with the gsm line discipline     enabled, and can lead to a use-after-free problem on a struct gsm_dlci while restarting the gsm mux. This     could allow a local unprivileged user to escalate their privileges on the system.(CVE-2023-6546)

    A heap out-of-bounds write vulnerability in the Linux kernel's Performance Events system component can be     exploited to achieve local privilege escalation.A perf_event's read_size can overflow, leading to an heap     out-of-bounds increment or write in perf_read_group().We recommend upgrading past commit     382c27f4ed28f803b1f1473ac2d8db0afc795a1b.(CVE-2023-6931)

    A use-after-free vulnerability in the Linux kernel's ipv4: igmp component can be exploited to achieve     local privilege escalation.A race condition can be exploited to cause a timer be mistakenly registered on     a RCU read locked object which is freed by another thread.We recommend upgrading past commit     e2b706c691905fe78468c361aaabc719d0a496f1.(CVE-2023-6932)

    A use-after-free vulnerability in the Linux kernel's netfilter: nf_tables component can be exploited to     achieve local privilege escalation.The function nft_pipapo_walk did not skip inactive elements during set     walk which could lead double deactivations of PIPAPO (Pile Packet Policies) elements, leading to use-     after-free.We recommend upgrading past commit 317eb9685095678f2c9f5a8189de698c5354316a.(CVE-2023-6817)

    An out-of-bounds read vulnerability was found in smbCalcSize in fs/smb/client/netmisc.c in the Linux     Kernel. This issue could allow a local attacker to crash the system or leak internal kernel     information.(CVE-2023-6606)

    An out-of-bounds read vulnerability was found in the NVMe-oF/TCP subsystem in the Linux kernel. This flaw     allows a remote attacker to send a crafted TCP packet, triggering a heap-based buffer overflow that     results in kmalloc data to be printed (and potentially leaked) to the kernel ring buffer     (dmesg).(CVE-2023-6121)

Tenable has extracted the preceding description block directly from the EulerOS kernel security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

According to the versions of the kernel packages installed, the EulerOS Virtualization installation on the remote host is affected by the following vulnerabilities :

    In the Linux kernel before 6.4.5, drivers/gpu/drm/drm_atomic.c has a use-after-free during a race     condition between a nonblocking atomic commit and a driver unload.(CVE-2023-51043)

    A flaw was found in the Netfilter subsystem in the Linux kernel. The issue is in the nft_byteorder_eval()     function, where the code iterates through a loop and writes to the `dst` array. On each iteration, 8 bytes     are written, but `dst` is an array of u32, so each element only has space for 4 bytes. That means every     iteration overwrites part of the previous element corrupting this array of u32. This flaw allows a local     user to cause a denial of service or potentially break NetFilter functionality.(CVE-2024-0607)

    A denial of service vulnerability due to a deadlock was found in sctp_auto_asconf_init in     net/sctp/socket.c in the Linux kernels SCTP subsystem. This flaw allows guests with local user     privileges to trigger a deadlock and potentially crash the system.(CVE-2024-0639)

    A Null pointer dereference problem was found in ida_free in lib/idr.c in the Linux Kernel. This issue may     allow an attacker using this library to cause a denial of service problem due to a missing check at a     function return.(CVE-2023-6915)

    A use-after-free issue was found in igmp_start_timer in net/ipv4/igmp.c in the network sub-component in     the Linux Kernel. This flaw allows a local user to observe a refcnt use-after-free issue when receiving an     igmp query packet, leading to a kernel information leak.(CVE-2024-0584)

    Integer Overflow or Wraparound vulnerability in openEuler kernel on Linux (filesystem modules) allows     Forced Integer Overflow.This issue affects openEuler kernel: from 4.19.90 before 4.19.90-2401.3, from     5.10.0-60.18.0 before 5.10.0-183.0.0.(CVE-2021-33631)

    A denial of service vulnerability was found in tipc_crypto_key_revoke in net/tipc/crypto.c in the Linux     kernels TIPC subsystem. This flaw allows guests with local user privileges to trigger a deadlock and     potentially crash the system.(CVE-2024-0641)

    A use-after-free flaw was found in the Linux Kernel due to a race problem in the unix garbage collector's     deletion of SKB races with unix_stream_read_generic() on the socket that the SKB is queued     on.(CVE-2023-6531)

    An out-of-bounds access vulnerability involving netfilter was reported and fixed as: f1082dd31fe4     (netfilter: nf_tables: Reject tables of unsupported family); While creating a new netfilter table, lack of     a safeguard against invalid nf_tables family (pf) values within `nf_tables_newtable` function enables an     attacker to achieve out-of-bounds access.(CVE-2023-6040)

    An out-of-bounds memory read flaw was found in receive_encrypted_standard in fs/smb/client/smb2ops.c in     the SMB Client sub-component in the Linux Kernel. This issue occurs due to integer underflow on the memcpy     length, leading to a denial of service.(CVE-2024-0565)

    An issue was discovered in drivers/input/input.c in the Linux kernel before 5.17.10. An attacker can cause     a denial of service (panic) because input_set_capability mishandles the situation in which an event code     falls outside of a bitmap.(CVE-2022-48619)

    A vulnerability was found in vhost_new_msg in drivers/vhost/vhost.c in the Linux kernel, which does not     properly initialize memory in messages passed between virtual guests and the host operating system in the     vhost/vhost.c:vhost_new_msg() function. This issue can allow local privileged users to read some kernel     memory contents when reading from the /dev/vhost-net device file.(CVE-2024-0340)

    A memory leak problem was found in ctnetlink_create_conntrack in net/netfilter/nf_conntrack_netlink.c in     the Linux Kernel. This issue may allow a local attacker with CAP_NET_ADMIN privileges to cause a denial of     service (DoS) attack due to a refcount overflow.(CVE-2023-7192)

    A use-after-free flaw was found in the netfilter subsystem of the Linux kernel. If the catchall element is     garbage-collected when the pipapo set is removed, the element can be deactivated twice. This can cause a     use-after-free issue on an NFT_CHAIN object or NFT_OBJECT object, allowing a local unprivileged user with     CAP_NET_ADMIN capability to escalate their privileges on the system.(CVE-2024-0193)

    A race condition was found in the GSM 0710 tty multiplexor in the Linux kernel. This issue occurs when two     threads execute the GSMIOC_SETCONF ioctl on the same tty file descriptor with the gsm line discipline     enabled, and can lead to a use-after-free problem on a struct gsm_dlci while restarting the gsm mux. This     could allow a local unprivileged user to escalate their privileges on the system.(CVE-2023-6546)

    A heap out-of-bounds write vulnerability in the Linux kernel's Performance Events system component can be     exploited to achieve local privilege escalation.A perf_event's read_size can overflow, leading to an heap     out-of-bounds increment or write in perf_read_group().We recommend upgrading past commit     382c27f4ed28f803b1f1473ac2d8db0afc795a1b.(CVE-2023-6931)

    A use-after-free vulnerability in the Linux kernel's ipv4: igmp component can be exploited to achieve     local privilege escalation.A race condition can be exploited to cause a timer be mistakenly registered on     a RCU read locked object which is freed by another thread.We recommend upgrading past commit     e2b706c691905fe78468c361aaabc719d0a496f1.(CVE-2023-6932)

    A use-after-free vulnerability in the Linux kernel's netfilter: nf_tables component can be exploited to     achieve local privilege escalation.The function nft_pipapo_walk did not skip inactive elements during set     walk which could lead double deactivations of PIPAPO (Pile Packet Policies) elements, leading to use-     after-free.We recommend upgrading past commit 317eb9685095678f2c9f5a8189de698c5354316a.(CVE-2023-6817)

    An out-of-bounds read vulnerability was found in smbCalcSize in fs/smb/client/netmisc.c in the Linux     Kernel. This issue could allow a local attacker to crash the system or leak internal kernel     information.(CVE-2023-6606)

    An out-of-bounds read vulnerability was found in the NVMe-oF/TCP subsystem in the Linux kernel. This flaw     allows a remote attacker to send a crafted TCP packet, triggering a heap-based buffer overflow that     results in kmalloc data to be printed (and potentially leaked) to the kernel ring buffer     (dmesg).(CVE-2023-6121)

Tenable has extracted the preceding description block directly from the EulerOS Virtualization kernel security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

The version of Tencent Linux installed on the remote TencentOS Server 2 host is prior to tested version. It is, therefore, affected by multiple vulnerabilities as referenced in the TSSA-2024:1031 advisory.

    Package updates are available for TencentOS Server 2 that fix the following vulnerabilities:

    CVE-2024-1086:
    A use-after-free vulnerability in the Linux kernel's netfilter: nf_tables component can be exploited to     achieve local privilege escalation.

    The nft_verdict_init() function allows positive values as drop error within the hook verdict, and hence     the nf_hook_slow() function can cause a double free vulnerability when NF_DROP is issued with a drop error     which resembles NF_ACCEPT.

    We recommend upgrading past commit f342de4e2f33e0e39165d8639387aa6c19dff660.

    CVE-2024-0565:
    An out-of-bounds memory read flaw was found in receive_encrypted_standard in fs/smb/client/smb2ops.c in     the SMB Client sub-component in the Linux Kernel. This issue occurs due to integer underflow on the memcpy     length, leading to a denial of service.

    CVE-2023-6931:
    A heap out-of-bounds write vulnerability in the Linux kernel's Performance Events system component can be     exploited to achieve local privilege escalation.

    A perf_event's read_size can overflow, leading to an heap out-of-bounds increment or write in     perf_read_group().

    We recommend upgrading past commit 382c27f4ed28f803b1f1473ac2d8db0afc795a1b.



    CVE-2023-6610:
    An out-of-bounds read vulnerability was found in smb2_dump_detail in fs/smb/client/smb2ops.c in the Linux     Kernel. This issue could allow a local attacker to crash the system or leak internal kernel information.

    CVE-2023-6606:
    An out-of-bounds read vulnerability was found in smbCalcSize in fs/smb/client/netmisc.c in the Linux     Kernel. This issue could allow a local attacker to crash the system or leak internal kernel information.

    CVE-2023-6121:
    An out-of-bounds read vulnerability was found in the NVMe-oF/TCP subsystem in the Linux kernel. This flaw     allows a remote attacker to send a crafted TCP packet, triggering a heap-based buffer overflow that     results in kmalloc data to be printed (and potentially leaked) to the kernel ring buffer (dmesg).

    CVE-2023-52600:
    In the Linux kernel, the following vulnerability has been resolved:

    jfs: fix uaf in jfs_evict_inode

    When the execution of diMount(ipimap) fails, the object ipimap that has been     released may be accessed in diFreeSpecial(). Asynchronous ipimap release occurs     when rcu_core() calls jfs_free_node().

    Therefore, when diMount(ipimap) fails, sbi->ipimap should not be initialized as     ipimap.

    CVE-2023-52599:
    In the Linux kernel, the following vulnerability has been resolved:

    jfs: fix array-index-out-of-bounds in diNewExt

    [Syz report]     UBSAN: array-index-out-of-bounds in fs/jfs/jfs_imap.c:2360:2     index -878706688 is out of range for type 'struct iagctl[128]'     CPU: 1 PID: 5065 Comm: syz-executor282 Not tainted 6.7.0-rc4-syzkaller-00009-gbee0e7762ad2 #0     Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 11/10/2023     Call Trace:
     <TASK>
     __dump_stack lib/dump_stack.c:88 [inline]      dump_stack_lvl+0x1e7/0x2d0 lib/dump_stack.c:106      ubsan_epilogue lib/ubsan.c:217 [inline]
     __ubsan_handle_out_of_bounds+0x11c/0x150 lib/ubsan.c:348      diNewExt+0x3cf3/0x4000 fs/jfs/jfs_imap.c:2360      diAllocExt fs/jfs/jfs_imap.c:1949 [inline]      diAllocAG+0xbe8/0x1e50 fs/jfs/jfs_imap.c:1666      diAlloc+0x1d3/0x1760 fs/jfs/jfs_imap.c:1587      ialloc+0x8f/0x900 fs/jfs/jfs_inode.c:56      jfs_mkdir+0x1c5/0xb90 fs/jfs/namei.c:225      vfs_mkdir+0x2f1/0x4b0 fs/namei.c:4106      do_mkdirat+0x264/0x3a0 fs/namei.c:4129
     __do_sys_mkdir fs/namei.c:4149 [inline]
     __se_sys_mkdir fs/namei.c:4147 [inline]
     __x64_sys_mkdir+0x6e/0x80 fs/namei.c:4147      do_syscall_x64 arch/x86/entry/common.c:51 [inline]      do_syscall_64+0x45/0x110 arch/x86/entry/common.c:82      entry_SYSCALL_64_after_hwframe+0x63/0x6b     RIP: 0033:0x7fcb7e6a0b57     Code: ff ff 77 07 31 c0 c3 0f 1f 40 00 48 c7 c2 b8 ff ff ff f7 d8 64 89 02 b8 ff ff ff ff c3 66 0f 1f 44     00 00 b8 53 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b8 ff ff ff f7 d8 64 89 01 48     RSP: 002b:00007ffd83023038 EFLAGS: 00000286 ORIG_RAX: 0000000000000053     RAX: ffffffffffffffda RBX: 00000000ffffffff RCX: 00007fcb7e6a0b57     RDX: 00000000000a1020 RSI: 00000000000001ff RDI: 0000000020000140     RBP: 0000000020000140 R08: 0000000000000000 R09: 0000000000000000     R10: 0000000000000000 R11: 0000000000000286 R12: 00007ffd830230d0     R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000

    [Analysis]     When the agstart is too large, it can cause agno overflow.

    [Fix]     After obtaining agno, if the value is invalid, exit the subsequent process.


    Modified the test from agno > MAXAG to agno >= MAXAG based on linux-next     report by kernel test robot (Dan Carpenter).

    CVE-2023-52591:
    In the Linux kernel, the following vulnerability has been resolved:

    reiserfs: Avoid touching renamed directory if parent does not change

    The VFS will not be locking moved directory if its parent does not     change. Change reiserfs rename code to avoid touching renamed directory     if its parent does not change as without locking that can corrupt the     filesystem.

    CVE-2023-52590:
    In the Linux kernel, the following vulnerability has been resolved:

    ocfs2: Avoid touching renamed directory if parent does not change

    The VFS will not be locking moved directory if its parent does not     change. Change ocfs2 rename code to avoid touching renamed directory if     its parent does not change as without locking that can corrupt the     filesystem.

    CVE-2023-52583:
    In the Linux kernel, the following vulnerability has been resolved:

    ceph: fix deadlock or deadcode of misusing dget()

    The lock order is incorrect between denty and its parent, we should     always make sure that the parent get the lock first.

    But since this deadcode is never used and the parent dir will always     be set from the callers, let's just remove it.

    CVE-2023-26607:
    In the Linux kernel 6.0.8, there is an out-of-bounds read in ntfs_attr_find in fs/ntfs/attrib.c.

    CVE-2023-1611:
    A use-after-free flaw was found in btrfs_search_slot in fs/btrfs/ctree.c in btrfs in the Linux Kernel.This     flaw allows an attacker to crash the system and possibly cause a kernel information lea

    CVE-2022-45919:
    An issue was discovered in the Linux kernel through 6.0.10. In drivers/media/dvb-core/dvb_ca_en50221.c, a     use-after-free can occur is there is a disconnect after an open, because of the lack of a wait_event.

    CVE-2022-45886:
    An issue was discovered in the Linux kernel through 6.0.9. drivers/media/dvb-core/dvb_net.c has a     .disconnect versus dvb_device_open race condition that leads to a use-after-free.

    CVE-2022-42329:
    Guests can trigger deadlock in Linux netback driver T[his CNA information record relates to multiple CVEs;
    the text explains which aspects/vulnerabilities correspond to which CVE.] The patch for XSA-392 introduced     another issue which might result in a deadlock when trying to free the SKB of a packet dropped due to the     XSA-392 handling (CVE-2022-42328). Additionally when dropping packages for other reasons the same deadlock     could occur in case of netpoll being active for the interface the xen-netback driver is connected to     (CVE-2022-42329).

    CVE-2022-3606:
    A vulnerability was found in Linux Kernel. It has been classified as problematic. This affects the     function find_prog_by_sec_insn of the file tools/lib/bpf/libbpf.c of the component BPF. The manipulation     leads to null pointer dereference. It is recommended to apply a patch to fix this issue. The identifier     VDB-211749 was assigned to this vulnerability.

    CVE-2022-20423:
    In rndis_set_response of rndis.c, there is a possible out of bounds write due to an integer overflow. This     could lead to local escalation of privilege if a malicious USB device is attached with no additional     execution privileges needed. User interaction is not needed for exploitation.Product: AndroidVersions:
    Android kernelAndroid ID: A-239842288References: Upstream kernel

    CVE-2022-0480:
    A flaw was found in the filelock_init in fs/locks.c function in the Linux kernel. This issue can lead to     host memory exhaustion due to memcg not limiting the number of Portable Operating System Interface (POSIX)     file locks.

    CVE-2021-46972:
    In the Linux kernel, the following vulnerability has been resolved:

    ovl: fix leaked dentry

    Since commit 6815f479ca90 (ovl: use only uppermetacopy state in     ovl_lookup()), overlayfs doesn't put temporary dentry when there is a     metacopy error, which leads to dentry leaks when shutting down the related     superblock:

    overlayfs: refusing to follow metacopy origin for (/file0)     ...
    BUG: Dentry (____ptrval____){i=3f33,n=file3}  still in use (1) [unmount of overlay overlay]     ...
    WARNING: CPU: 1 PID: 432 at umount_check.cold+0x107/0x14d     CPU: 1 PID: 432 Comm: unmount-overlay Not tainted 5.12.0-rc5 #1     ...
    RIP: 0010:umount_check.cold+0x107/0x14d     ...
    Call Trace:
     d_walk+0x28c/0x950      ? dentry_lru_isolate+0x2b0/0x2b0      ? __kasan_slab_free+0x12/0x20      do_one_tree+0x33/0x60      shrink_dcache_for_umount+0x78/0x1d0      generic_shutdown_super+0x70/0x440      kill_anon_super+0x3e/0x70      deactivate_locked_super+0xc4/0x160      deactivate_super+0xfa/0x140      cleanup_mnt+0x22e/0x370
     __cleanup_mnt+0x1a/0x30      task_work_run+0x139/0x210      do_exit+0xb0c/0x2820      ? __kasan_check_read+0x1d/0x30      ? find_held_lock+0x35/0x160      ? lock_release+0x1b6/0x660      ? mm_update_next_owner+0xa20/0xa20      ? reacquire_held_locks+0x3f0/0x3f0      ? __sanitizer_cov_trace_const_cmp4+0x22/0x30      do_group_exit+0x135/0x380
     __do_sys_exit_group.isra.0+0x20/0x20
     __x64_sys_exit_group+0x3c/0x50      do_syscall_64+0x45/0x70      entry_SYSCALL_64_after_hwframe+0x44/0xae     ...
    VFS: Busy inodes after unmount of overlay. Self-destruct in 5 seconds.  Have a nice day...

    This fix has been tested with a syzkaller reproducer.

    CVE-2021-4083:
    A read-after-free memory flaw was found in the Linux kernel's garbage collection for Unix domain socket     file handlers in the way users call close() and fget() simultaneously and can potentially trigger a race     condition. This flaw allows a local user to crash the system or escalate their privileges on the system.
    This flaw affects Linux kernel versions prior to 5.16-rc4.

    CVE-2021-3739:
    A NULL pointer dereference flaw was found in the btrfs_rm_device function in fs/btrfs/volumes.c in the     Linux Kernel, where triggering the bug requires CAP_SYS_ADMIN. This flaw allows a local attacker to     crash the system or leak kernel internal information. The highest threat from this vulnerability is to     system availability.

Tenable has extracted the preceding description block directly from the Tencent Linux security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

The version of Tencent Linux installed on the remote TencentOS Server 3 host is prior to tested version. It is, therefore, affected by multiple vulnerabilities as referenced in the TSSA-2024:1026 advisory.

    Package updates are available for TencentOS Server 3 that fix the following vulnerabilities:

    CVE-2024-1086:
    A use-after-free vulnerability in the Linux kernel's netfilter: nf_tables component can be exploited to     achieve local privilege escalation.

    The nft_verdict_init() function allows positive values as drop error within the hook verdict, and hence     the nf_hook_slow() function can cause a double free vulnerability when NF_DROP is issued with a drop error     which resembles NF_ACCEPT.

    We recommend upgrading past commit f342de4e2f33e0e39165d8639387aa6c19dff660.

    CVE-2024-0565:
    An out-of-bounds memory read flaw was found in receive_encrypted_standard in fs/smb/client/smb2ops.c in     the SMB Client sub-component in the Linux Kernel. This issue occurs due to integer underflow on the memcpy     length, leading to a denial of service.

    CVE-2023-6931:
    A heap out-of-bounds write vulnerability in the Linux kernel's Performance Events system component can be     exploited to achieve local privilege escalation.

    A perf_event's read_size can overflow, leading to an heap out-of-bounds increment or write in     perf_read_group().

    We recommend upgrading past commit 382c27f4ed28f803b1f1473ac2d8db0afc795a1b.



    CVE-2023-6610:
    An out-of-bounds read vulnerability was found in smb2_dump_detail in fs/smb/client/smb2ops.c in the Linux     Kernel. This issue could allow a local attacker to crash the system or leak internal kernel information.

    CVE-2023-6606:
    An out-of-bounds read vulnerability was found in smbCalcSize in fs/smb/client/netmisc.c in the Linux     Kernel. This issue could allow a local attacker to crash the system or leak internal kernel information.

    CVE-2023-6121:
    An out-of-bounds read vulnerability was found in the NVMe-oF/TCP subsystem in the Linux kernel. This flaw     allows a remote attacker to send a crafted TCP packet, triggering a heap-based buffer overflow that     results in kmalloc data to be printed (and potentially leaked) to the kernel ring buffer (dmesg).

    CVE-2023-52600:
    In the Linux kernel, the following vulnerability has been resolved:

    jfs: fix uaf in jfs_evict_inode

    When the execution of diMount(ipimap) fails, the object ipimap that has been     released may be accessed in diFreeSpecial(). Asynchronous ipimap release occurs     when rcu_core() calls jfs_free_node().

    Therefore, when diMount(ipimap) fails, sbi->ipimap should not be initialized as     ipimap.

    CVE-2023-52599:
    In the Linux kernel, the following vulnerability has been resolved:

    jfs: fix array-index-out-of-bounds in diNewExt

    [Syz report]     UBSAN: array-index-out-of-bounds in fs/jfs/jfs_imap.c:2360:2     index -878706688 is out of range for type 'struct iagctl[128]'     CPU: 1 PID: 5065 Comm: syz-executor282 Not tainted 6.7.0-rc4-syzkaller-00009-gbee0e7762ad2 #0     Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 11/10/2023     Call Trace:
     <TASK>
     __dump_stack lib/dump_stack.c:88 [inline]      dump_stack_lvl+0x1e7/0x2d0 lib/dump_stack.c:106      ubsan_epilogue lib/ubsan.c:217 [inline]
     __ubsan_handle_out_of_bounds+0x11c/0x150 lib/ubsan.c:348      diNewExt+0x3cf3/0x4000 fs/jfs/jfs_imap.c:2360      diAllocExt fs/jfs/jfs_imap.c:1949 [inline]      diAllocAG+0xbe8/0x1e50 fs/jfs/jfs_imap.c:1666      diAlloc+0x1d3/0x1760 fs/jfs/jfs_imap.c:1587      ialloc+0x8f/0x900 fs/jfs/jfs_inode.c:56      jfs_mkdir+0x1c5/0xb90 fs/jfs/namei.c:225      vfs_mkdir+0x2f1/0x4b0 fs/namei.c:4106      do_mkdirat+0x264/0x3a0 fs/namei.c:4129
     __do_sys_mkdir fs/namei.c:4149 [inline]
     __se_sys_mkdir fs/namei.c:4147 [inline]
     __x64_sys_mkdir+0x6e/0x80 fs/namei.c:4147      do_syscall_x64 arch/x86/entry/common.c:51 [inline]      do_syscall_64+0x45/0x110 arch/x86/entry/common.c:82      entry_SYSCALL_64_after_hwframe+0x63/0x6b     RIP: 0033:0x7fcb7e6a0b57     Code: ff ff 77 07 31 c0 c3 0f 1f 40 00 48 c7 c2 b8 ff ff ff f7 d8 64 89 02 b8 ff ff ff ff c3 66 0f 1f 44     00 00 b8 53 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b8 ff ff ff f7 d8 64 89 01 48     RSP: 002b:00007ffd83023038 EFLAGS: 00000286 ORIG_RAX: 0000000000000053     RAX: ffffffffffffffda RBX: 00000000ffffffff RCX: 00007fcb7e6a0b57     RDX: 00000000000a1020 RSI: 00000000000001ff RDI: 0000000020000140     RBP: 0000000020000140 R08: 0000000000000000 R09: 0000000000000000     R10: 0000000000000000 R11: 0000000000000286 R12: 00007ffd830230d0     R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000

    [Analysis]     When the agstart is too large, it can cause agno overflow.

    [Fix]     After obtaining agno, if the value is invalid, exit the subsequent process.


    Modified the test from agno > MAXAG to agno >= MAXAG based on linux-next     report by kernel test robot (Dan Carpenter).

    CVE-2023-52591:
    In the Linux kernel, the following vulnerability has been resolved:

    reiserfs: Avoid touching renamed directory if parent does not change

    The VFS will not be locking moved directory if its parent does not     change. Change reiserfs rename code to avoid touching renamed directory     if its parent does not change as without locking that can corrupt the     filesystem.

    CVE-2023-52590:
    In the Linux kernel, the following vulnerability has been resolved:

    ocfs2: Avoid touching renamed directory if parent does not change

    The VFS will not be locking moved directory if its parent does not     change. Change ocfs2 rename code to avoid touching renamed directory if     its parent does not change as without locking that can corrupt the     filesystem.

    CVE-2023-52583:
    In the Linux kernel, the following vulnerability has been resolved:

    ceph: fix deadlock or deadcode of misusing dget()

    The lock order is incorrect between denty and its parent, we should     always make sure that the parent get the lock first.

    But since this deadcode is never used and the parent dir will always     be set from the callers, let's just remove it.

    CVE-2023-26607:
    In the Linux kernel 6.0.8, there is an out-of-bounds read in ntfs_attr_find in fs/ntfs/attrib.c.

    CVE-2023-1611:
    A use-after-free flaw was found in btrfs_search_slot in fs/btrfs/ctree.c in btrfs in the Linux Kernel.This     flaw allows an attacker to crash the system and possibly cause a kernel information lea

    CVE-2022-45919:
    An issue was discovered in the Linux kernel through 6.0.10. In drivers/media/dvb-core/dvb_ca_en50221.c, a     use-after-free can occur is there is a disconnect after an open, because of the lack of a wait_event.

    CVE-2022-45886:
    An issue was discovered in the Linux kernel through 6.0.9. drivers/media/dvb-core/dvb_net.c has a     .disconnect versus dvb_device_open race condition that leads to a use-after-free.

    CVE-2022-42329:
    Guests can trigger deadlock in Linux netback driver T[his CNA information record relates to multiple CVEs;
    the text explains which aspects/vulnerabilities correspond to which CVE.] The patch for XSA-392 introduced     another issue which might result in a deadlock when trying to free the SKB of a packet dropped due to the     XSA-392 handling (CVE-2022-42328). Additionally when dropping packages for other reasons the same deadlock     could occur in case of netpoll being active for the interface the xen-netback driver is connected to     (CVE-2022-42329).

    CVE-2022-3606:
    A vulnerability was found in Linux Kernel. It has been classified as problematic. This affects the     function find_prog_by_sec_insn of the file tools/lib/bpf/libbpf.c of the component BPF. The manipulation     leads to null pointer dereference. It is recommended to apply a patch to fix this issue. The identifier     VDB-211749 was assigned to this vulnerability.

    CVE-2022-20423:
    In rndis_set_response of rndis.c, there is a possible out of bounds write due to an integer overflow. This     could lead to local escalation of privilege if a malicious USB device is attached with no additional     execution privileges needed. User interaction is not needed for exploitation.Product: AndroidVersions:
    Android kernelAndroid ID: A-239842288References: Upstream kernel

    CVE-2022-0480:
    A flaw was found in the filelock_init in fs/locks.c function in the Linux kernel. This issue can lead to     host memory exhaustion due to memcg not limiting the number of Portable Operating System Interface (POSIX)     file locks.

    CVE-2021-46972:
    In the Linux kernel, the following vulnerability has been resolved:

    ovl: fix leaked dentry

    Since commit 6815f479ca90 (ovl: use only uppermetacopy state in     ovl_lookup()), overlayfs doesn't put temporary dentry when there is a     metacopy error, which leads to dentry leaks when shutting down the related     superblock:

    overlayfs: refusing to follow metacopy origin for (/file0)     ...
    BUG: Dentry (____ptrval____){i=3f33,n=file3}  still in use (1) [unmount of overlay overlay]     ...
    WARNING: CPU: 1 PID: 432 at umount_check.cold+0x107/0x14d     CPU: 1 PID: 432 Comm: unmount-overlay Not tainted 5.12.0-rc5 #1     ...
    RIP: 0010:umount_check.cold+0x107/0x14d     ...
    Call Trace:
     d_walk+0x28c/0x950      ? dentry_lru_isolate+0x2b0/0x2b0      ? __kasan_slab_free+0x12/0x20      do_one_tree+0x33/0x60      shrink_dcache_for_umount+0x78/0x1d0      generic_shutdown_super+0x70/0x440      kill_anon_super+0x3e/0x70      deactivate_locked_super+0xc4/0x160      deactivate_super+0xfa/0x140      cleanup_mnt+0x22e/0x370
     __cleanup_mnt+0x1a/0x30      task_work_run+0x139/0x210      do_exit+0xb0c/0x2820      ? __kasan_check_read+0x1d/0x30      ? find_held_lock+0x35/0x160      ? lock_release+0x1b6/0x660      ? mm_update_next_owner+0xa20/0xa20      ? reacquire_held_locks+0x3f0/0x3f0      ? __sanitizer_cov_trace_const_cmp4+0x22/0x30      do_group_exit+0x135/0x380
     __do_sys_exit_group.isra.0+0x20/0x20
     __x64_sys_exit_group+0x3c/0x50      do_syscall_64+0x45/0x70      entry_SYSCALL_64_after_hwframe+0x44/0xae     ...
    VFS: Busy inodes after unmount of overlay. Self-destruct in 5 seconds.  Have a nice day...

    This fix has been tested with a syzkaller reproducer.

    CVE-2021-4083:
    A read-after-free memory flaw was found in the Linux kernel's garbage collection for Unix domain socket     file handlers in the way users call close() and fget() simultaneously and can potentially trigger a race     condition. This flaw allows a local user to crash the system or escalate their privileges on the system.
    This flaw affects Linux kernel versions prior to 5.16-rc4.

    CVE-2021-3739:
    A NULL pointer dereference flaw was found in the btrfs_rm_device function in fs/btrfs/volumes.c in the     Linux Kernel, where triggering the bug requires CAP_SYS_ADMIN. This flaw allows a local attacker to     crash the system or leak kernel internal information. The highest threat from this vulnerability is to     system availability.

Tenable has extracted the preceding description block directly from the Tencent Linux security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

ID	名称	产品	系列	发布时间	最近更新时间	严重程度
189094	Debian dla-3710 : hyperv-daemons - security update	Nessus	Debian Local Security Checks	2024/1/16	2025/3/31	critical
189391	Amazon Linux AMI : kernel (ALAS-2024-1906)	Nessus	Amazon Linux Local Security Checks	2024/1/23	2026/1/26	high
189759	Ubuntu 20.04 LTS : Linux kernel (KVM) vulnerabilities (USN-6605-2)	Nessus	Ubuntu Local Security Checks	2024/1/30	2024/8/27	high
197251	EulerOS Virtualization 3.0.6.0 : kernel (EulerOS-SA-2024-1685)	Nessus	Huawei Local Security Checks	2024/5/17	2024/6/17	critical
189109	SUSE SLED12: cluster-md-kmp-default / dlm-kmp-default / gfs2-kmp-default / etc (SUSE-SU-2024:0117-1)	Nessus	SuSE Local Security Checks	2024/1/17	2026/6/25	high
189168	SUSE SLES12: kernel-azure / kernel-azure-base / kernel-azure-devel / etc (SUSE-SU-2024:0113-1)	Nessus	SuSE Local Security Checks	2024/1/18	2026/6/25	high
191828	EulerOS 2.0 SP8 : kernel (EulerOS-SA-2024-1275)	Nessus	Huawei Local Security Checks	2024/3/12	2024/6/17	critical
191650	RHEL 8 : kernel (RHSA-2024:1188)	Nessus	Red Hat Local Security Checks	2024/3/6	2024/11/7	high
292076	MiracleLinux 9 : kernel-5.14.0-362.24.1.el9_3 (AXSA:2024-7637:09)	Nessus	Miracle Linux Local Security Checks	2026/1/20	2026/1/20	high
189610	Ubuntu 20.04 LTS / 22.04 LTS : Linux kernel vulnerabilities (USN-6609-1)	Nessus	Ubuntu Local Security Checks	2024/1/25	2026/6/3	high
190519	Ubuntu 22.04 LTS : Linux kernel (NVIDIA) vulnerabilities (USN-6608-2)	Nessus	Ubuntu Local Security Checks	2024/2/14	2024/8/28	high
194440	RHEL 9 : kernel (RHSA-2024:1248)	Nessus	Red Hat Local Security Checks	2024/4/29	2024/11/8	high
191854	EulerOS 2.0 SP11 : kernel (EulerOS-SA-2024-1215)	Nessus	Huawei Local Security Checks	2024/3/12	2025/9/29	high
197126	EulerOS Virtualization 2.11.0 : kernel (EulerOS-SA-2024-1627)	Nessus	Huawei Local Security Checks	2024/5/15	2025/9/29	high
240010	TencentOS Server 2: kernel (TSSA-2024:1031)	Nessus	Tencent Local Security Checks	2025/6/16	2025/11/23	high
276182	TencentOS Server 3: kernel (TSSA-2024:1026)	Nessus	Tencent Local Security Checks	2025/11/20	2026/3/11	high

检测

插件搜索

critical

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critical

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high