The remote Ubuntu 20.04 LTS host has a package installed that is affected by multiple vulnerabilities as referenced in the USN-5368-1 advisory.

    It was discovered that the BPF verifier in the Linux kernel did not properly restrict pointer types in     certain situations. A local attacker could use this to cause a denial of service (system crash) or     possibly execute arbitrary code. (CVE-2022-23222)

    It was discovered that the network traffic control implementation in the Linux kernel contained 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-2022-1055)

    Yiqi Sun and Kevin Wang discovered that the cgroups implementation in the Linux kernel did not properly     restrict access to the cgroups v1 release_agent feature. A local attacker could use this to gain     administrative privileges. (CVE-2022-0492)

    Jrgen Gro discovered that the Xen subsystem within the Linux kernel did not adequately limit the     number of events driver domains (unprivileged PV backends) could send to other guest VMs. An attacker in a     driver domain could use this to cause a denial of service in other guest VMs. (CVE-2021-28711,     CVE-2021-28712, CVE-2021-28713)

    Jrgen Gro discovered that the Xen network backend driver in the Linux kernel did not adequately limit     the amount of queued packets when a guest did not process them. An attacker in a guest VM can use this to     cause a denial of service (excessive kernel memory consumption) in the network backend domain.
    (CVE-2021-28714, CVE-2021-28715)

    Szymon Heidrich discovered that the USB Gadget subsystem in the Linux kernel did not properly restrict the     size of control requests for certain gadget types, leading to possible out of bounds reads or writes. A     local attacker could use this to cause a denial of service (system crash) or possibly execute arbitrary     code. (CVE-2021-39685)

    It was discovered that a race condition existed in the poll implementation in the Linux kernel, resulting     in 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-2021-39698)

    It was discovered that the simulated networking device driver for the Linux kernel did not properly     initialize memory in certain situations. A local attacker could use this to expose sensitive information     (kernel memory). (CVE-2021-4135)

    Eric Biederman discovered that the cgroup process migration implementation in the Linux kernel did not     perform permission checks correctly in some situations. A local attacker could possibly use this to gain     administrative privileges. (CVE-2021-4197)

    Brendan Dolan-Gavitt discovered that the aQuantia AQtion Ethernet device driver in the Linux kernel did     not properly validate meta-data coming from the device. A local attacker who can control an emulated     device can use this to cause a denial of service (system crash) or possibly execute arbitrary code.
    (CVE-2021-43975)

    It was discovered that the ARM Trusted Execution Environment (TEE) subsystem 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 or possibly execute arbitrary code. (CVE-2021-44733)

    It was discovered that the Phone Network protocol (PhoNet) implementation in the Linux kernel did not     properly perform reference counting in some error conditions. A local attacker could possibly use this to     cause a denial of service (memory exhaustion). (CVE-2021-45095)

    It was discovered that the eBPF verifier in the Linux kernel did not properly perform bounds checking on     mov32 operations. A local attacker could use this to expose sensitive information (kernel pointer     addresses). (CVE-2021-45402)

    It was discovered that the Reliable Datagram Sockets (RDS) protocol implementation in the Linux kernel did     not properly deallocate memory in some error conditions. A local attacker could possibly use this to cause     a denial of service (memory exhaustion). (CVE-2021-45480)

    It was discovered that the BPF subsystem in the Linux kernel did not properly track pointer types on     atomic fetch operations in some situations. A local attacker could use this to expose sensitive     information (kernel pointer addresses). (CVE-2022-0264)

    It was discovered that the TIPC Protocol implementation in the Linux kernel did not properly initialize     memory in some situations. A local attacker could use this to expose sensitive information (kernel     memory). (CVE-2022-0382)

    Samuel Page discovered that the Transparent Inter-Process Communication (TIPC) protocol implementation in     the Linux kernel contained a stack-based buffer overflow. A remote attacker could use this to cause a     denial of service (system crash) for systems that have a TIPC bearer configured. (CVE-2022-0435)

    It was discovered that the KVM implementation for s390 systems in the Linux kernel did not properly     prevent memory operations on PVM guests that were in non-protected mode. A local attacker could use this     to obtain unauthorized memory write access. (CVE-2022-0516)

    It was discovered that the ICMPv6 implementation in the Linux kernel did not properly deallocate memory in     certain situations. A remote attacker could possibly use this to cause a denial of service (memory     exhaustion). (CVE-2022-0742)

    It was discovered that the IPsec implementation in the Linux kernel did not properly allocate enough     memory when performing ESP transformations, leading to a heap-based buffer overflow. A local attacker     could use this to cause a denial of service (system crash) or possibly execute arbitrary code.
    (CVE-2022-27666)

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 Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2025-414631 advisory.

    Rogue backends can cause DoS of guests via high frequency events T[his CNA information record relates to     multiple CVEs; the text explains which aspects/vulnerabilities correspond to which CVE.] Xen offers the     ability to run PV backends in regular unprivileged guests, typically referred to as driver domains.
    Running PV backends in driver domains has one primary security advantage: if a driver domain gets     compromised, it doesn't have the privileges to take over the system. However, a malicious driver domain     could try to attack other guests via sending events at a high frequency leading to a Denial of Service in     the guest due to trying to service interrupts for elongated amounts of time. There are three affected     backends: * blkfront patch 1, CVE-2021-28711 * netfront patch 2, CVE-2021-28712 * hvc_xen (console) patch     3, CVE-2021-28713

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

Note that Nessus has not tested for this issue 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 :

  - Rogue backends can cause DoS of guests via high frequency events T[his CNA information record relates to     multiple CVEs; the text explains which aspects/vulnerabilities correspond to which CVE.] Xen offers the     ability to run PV backends in regular unprivileged guests, typically referred to as 'driver domains'.
    Running PV backends in driver domains has one primary security advantage: if a driver domain gets     compromised, it doesn't have the privileges to take over the system. However, a malicious driver domain     could try to attack other guests via sending events at a high frequency leading to a Denial of Service in     the guest due to trying to service interrupts for elongated amounts of time. There are three affected     backends: * blkfront patch 1, CVE-2021-28711 * netfront patch 2, CVE-2021-28712 * hvc_xen (console) patch     3, CVE-2021-28713 (CVE-2021-28711, CVE-2021-28712, CVE-2021-28713)

  - Guest can force Linux netback driver to hog large amounts of kernel memory T[his CNA information record     relates to multiple CVEs; the text explains which aspects/vulnerabilities correspond to which CVE.]     Incoming data packets for a guest in the Linux kernel's netback driver are buffered until the guest is     ready to process them. There are some measures taken for avoiding to pile up too much data, but those can     be bypassed by the guest: There is a timeout how long the client side of an interface can stop consuming     new packets before it is assumed to have stalled, but this timeout is rather long (60 seconds by default).
    Using a UDP connection on a fast interface can easily accumulate gigabytes of data in that time.
    (CVE-2021-28715) The timeout could even never trigger if the guest manages to have only one free slot in     its RX queue ring page and the next package would require more than one free slot, which may be the case     when using GSO, XDP, or software hashing. (CVE-2021-28714) (CVE-2021-28714, CVE-2021-28715)

  - In gre_handle_offloads of ip_gre.c, there is a possible page fault due to an invalid memory access. This     could lead to local information disclosure with no additional execution privileges needed. User     interaction is not needed for exploitation.Product: AndroidVersions: Android kernelAndroid ID:
    A-150694665References: Upstream kernel (CVE-2021-39633)

  - In various setup methods of the USB gadget subsystem, there is a possible out of bounds write due to an     incorrect flag check. This could lead to local escalation of privilege with no additional execution     privileges needed. User interaction is not needed for exploitation.Product: AndroidVersions: Android     kernelAndroid ID: A-210292376References: Upstream kernel (CVE-2021-39685)

  - An unprivileged write to the file handler flaw in the Linux kernel's control groups and namespaces     subsystem was found in the way users have access to some less privileged process that are controlled by     cgroups and have higher privileged parent process. It is actually both for cgroup2 and cgroup1 versions of     control groups. A local user could use this flaw to crash the system or escalate their privileges on the     system. (CVE-2021-4197)

  - A use-after-free read flaw was found in sock_getsockopt() in net/core/sock.c due to SO_PEERCRED and     SO_PEERGROUPS race with listen() (and connect()) in the Linux kernel. In this flaw, an attacker with a     user privileges may crash the system or leak internal kernel information. (CVE-2021-4203)

  - A use-after-free exists in drivers/tee/tee_shm.c in the TEE subsystem in the Linux kernel through 5.15.11.
    This occurs because of a race condition in tee_shm_get_from_id during an attempt to free a shared memory     object. (CVE-2021-44733)

  - In __f2fs_setxattr in fs/f2fs/xattr.c in the Linux kernel through 5.15.11, there is an out-of-bounds     memory access when an inode has an invalid last xattr entry. (CVE-2021-45469)

  - A flaw was found in the sctp_make_strreset_req function in net/sctp/sm_make_chunk.c in the SCTP network     protocol in the Linux kernel with a local user privilege access. In this flaw, an attempt to use more     buffer than is allocated triggers a BUG_ON issue, leading to a denial of service (DOS). (CVE-2022-0322)

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.

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 5.10.1, as used with Xen through 4.14.x. The Linux     kernel PV block backend expects the kernel thread handler to reset ring->xenblkd to NULL when stopped.
    However, the handler may not have time to run if the frontend quickly toggles between the states connect     and disconnect. As a consequence, the block backend may re-use a pointer after it was freed. A misbehaving     guest can trigger a dom0 crash by continuously connecting / disconnecting a block frontend. Privilege     escalation and information leaks cannot be ruled out. This only affects systems with a Linux blkback.
    (CVE-2020-29569)

  - Rogue backends can cause DoS of guests via high frequency events T[his CNA information record relates to     multiple CVEs; the text explains which aspects/vulnerabilities correspond to which CVE.] Xen offers the     ability to run PV backends in regular unprivileged guests, typically referred to as 'driver domains'.
    Running PV backends in driver domains has one primary security advantage: if a driver domain gets     compromised, it doesn't have the privileges to take over the system. However, a malicious driver domain     could try to attack other guests via sending events at a high frequency leading to a Denial of Service in     the guest due to trying to service interrupts for elongated amounts of time. There are three affected     backends: * blkfront patch 1, CVE-2021-28711 * netfront patch 2, CVE-2021-28712 * hvc_xen (console) patch     3, CVE-2021-28713 (CVE-2021-28711, CVE-2021-28712, CVE-2021-28713)

  - Improper input validation in the Intel(R) Ethernet ixgbe driver for Linux before version 3.17.3 may allow     an authenticated user to potentially enable denial of service via local access. (CVE-2021-33098)

  - In gre_handle_offloads of ip_gre.c, there is a possible page fault due to an invalid memory access. This     could lead to local information disclosure with no additional execution privileges needed. User     interaction is not needed for exploitation.Product: AndroidVersions: Android kernelAndroid ID:
    A-150694665References: Upstream kernel (CVE-2021-39633)

  - In various setup methods of the USB gadget subsystem, there is a possible out of bounds write due to an     incorrect flag check. This could lead to local escalation of privilege with no additional execution     privileges needed. User interaction is not needed for exploitation.Product: AndroidVersions: Android     kernelAndroid ID: A-210292376References: Upstream kernel (CVE-2021-39685)

  - An unprivileged write to the file handler flaw in the Linux kernel's control groups and namespaces     subsystem was found in the way users have access to some less privileged process that are controlled by     cgroups and have higher privileged parent process. It is actually both for cgroup2 and cgroup1 versions of     control groups. A local user could use this flaw to crash the system or escalate their privileges on the     system. (CVE-2021-4197)

  - A use-after-free read flaw was found in sock_getsockopt() in net/core/sock.c due to SO_PEERCRED and     SO_PEERGROUPS race with listen() (and connect()) in the Linux kernel. In this flaw, an attacker with a     user privileges may crash the system or leak internal kernel information. (CVE-2021-4203)

  - A use-after-free exists in drivers/tee/tee_shm.c in the TEE subsystem in the Linux kernel through 5.15.11.
    This occurs because of a race condition in tee_shm_get_from_id during an attempt to free a shared memory     object. (CVE-2021-44733)

  - In the IPv6 implementation in the Linux kernel before 5.13.3, net/ipv6/output_core.c has an information     leak because of certain use of a hash table which, although big, doesn't properly consider that IPv6-based     attackers can typically choose among many IPv6 source addresses. (CVE-2021-45485)

  - A flaw was found in the sctp_make_strreset_req function in net/sctp/sm_make_chunk.c in the SCTP network     protocol in the Linux kernel with a local user privilege access. In this flaw, an attempt to use more     buffer than is allocated triggers a BUG_ON issue, leading to a denial of service (DOS). (CVE-2022-0322)

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 SUSE15 host has packages installed that are affected by multiple vulnerabilities as referenced in the openSUSE-SU-2022:0056-1 advisory.

  - Uncontrolled resource consumption in some Intel(R) Ethernet E810 Adapter drivers for Linux before version     1.0.4 may allow an authenticated user to potentially enable denial of service via local access.
    (CVE-2020-24504)

  - A vulnerability was found in Linux kernel, where a use-after-frees in nouveau's postclose() handler could     happen if removing device (that is not common to remove video card physically without power-off, but same     happens if unbind the driver). (CVE-2020-27820)

  - Rogue backends can cause DoS of guests via high frequency events T[his CNA information record relates to     multiple CVEs; the text explains which aspects/vulnerabilities correspond to which CVE.] Xen offers the     ability to run PV backends in regular unprivileged guests, typically referred to as driver domains.
    Running PV backends in driver domains has one primary security advantage: if a driver domain gets     compromised, it doesn't have the privileges to take over the system. However, a malicious driver domain     could try to attack other guests via sending events at a high frequency leading to a Denial of Service in     the guest due to trying to service interrupts for elongated amounts of time. There are three affected     backends: * blkfront patch 1, CVE-2021-28711 * netfront patch 2, CVE-2021-28712 * hvc_xen (console) patch     3, CVE-2021-28713 (CVE-2021-28711, CVE-2021-28712, CVE-2021-28713)

  - Guest can force Linux netback driver to hog large amounts of kernel memory T[his CNA information record     relates to multiple CVEs; the text explains which aspects/vulnerabilities correspond to which CVE.]     Incoming data packets for a guest in the Linux kernel's netback driver are buffered until the guest is     ready to process them. There are some measures taken for avoiding to pile up too much data, but those can     be bypassed by the guest: There is a timeout how long the client side of an interface can stop consuming     new packets before it is assumed to have stalled, but this timeout is rather long (60 seconds by default).
    Using a UDP connection on a fast interface can easily accumulate gigabytes of data in that time.
    (CVE-2021-28715) The timeout could even never trigger if the guest manages to have only one free slot in     its RX queue ring page and the next package would require more than one free slot, which may be the case     when using GSO, XDP, or software hashing. (CVE-2021-28714) (CVE-2021-28714, CVE-2021-28715)

  - Improper input validation in the Intel(R) Ethernet ixgbe driver for Linux before version 3.17.3 may allow     an authenticated user to potentially enable denial of service via local access. (CVE-2021-33098)

  - A flaw use-after-free in function sco_sock_sendmsg() of the Linux kernel HCI subsystem was found in the     way user calls ioct UFFDIO_REGISTER or other way triggers race condition of the call sco_conn_del()     together with the call sco_sock_sendmsg() with the expected controllable faulting memory page. A     privileged local user could use this flaw to crash the system or escalate their privileges on the system.
    (CVE-2021-3640) (CVE-2021-4002)

  - In the Linux kernel through 5.15.2, hw_atl_utils_fw_rpc_wait in     drivers/net/ethernet/aquantia/atlantic/hw_atl/hw_atl_utils.c allows an attacker (who can introduce a     crafted device) to trigger an out-of-bounds write via a crafted length value. (CVE-2021-43975)

  - In the Linux kernel through 5.15.2, mwifiex_usb_recv in drivers/net/wireless/marvell/mwifiex/usb.c allows     an attacker (who can connect a crafted USB device) to cause a denial of service (skb_over_panic).
    (CVE-2021-43976)

  - In the IPv6 implementation in the Linux kernel before 5.13.3, net/ipv6/output_core.c has an information     leak because of certain use of a hash table which, although big, doesn't properly consider that IPv6-based     attackers can typically choose among many IPv6 source addresses. (CVE-2021-45485)

  - In the IPv4 implementation in the Linux kernel before 5.12.4, net/ipv4/route.c has an information leak     because the hash table is very small. (CVE-2021-45486)

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-5278-1 advisory.

    It was discovered that the rlimit tracking for user namespaces in the Linux kernel did not properly     perform reference counting, leading to a use-after- free vulnerability. A local attacker could use this to     cause a denial of service or possibly execute arbitrary code. (CVE-2022-24122)

    It was discovered that the BPF verifier in the Linux kernel did not properly restrict pointer types in     certain situations. A local attacker could use this to cause a denial of service (system crash) or     possibly execute arbitrary code. (CVE-2022-23222)

    Jeremy Cline discovered a use-after-free in the nouveau graphics driver of the Linux kernel during device     removal. A privileged or physically proximate attacker could use this to cause a denial of service (system     crash). (CVE-2020-27820)

    It was discovered that the Packet network protocol implementation in the Linux kernel contained a double-     free vulnerability. A local attacker could use this to cause a denial of service (system crash) or     possibly execute arbitrary code. (CVE-2021-22600)

    Jrgen Gro discovered that the Xen subsystem within the Linux kernel did not adequately limit the     number of events driver domains (unprivileged PV backends) could send to other guest VMs. An attacker in a     driver domain could use this to cause a denial of service in other guest VMs. (CVE-2021-28713)

    Jrgen Gro discovered that the Xen network backend driver in the Linux kernel did not adequately limit     the amount of queued packets when a guest did not process them. An attacker in a guest VM can use this to     cause a denial of service (excessive kernel memory consumption) in the network backend domain.
    (CVE-2021-28714, CVE-2021-28715)

    Szymon Heidrich discovered that the USB Gadget subsystem in the Linux kernel did not properly restrict the     size of control requests for certain gadget types, leading to possible out of bounds reads or writes. A     local attacker could use this to cause a denial of service (system crash) or possibly execute arbitrary     code. (CVE-2021-39685)

    It was discovered that the eBPF implementation in the Linux kernel contained a race condition around read-     only maps. A privileged attacker could use this to modify read-only maps. (CVE-2021-4001)

    Jann Horn discovered a race condition in the Unix domain socket implementation in the Linux kernel that     could result in a read-after-free. A local attacker could use this to cause a denial of service (system     crash) or possibly execute arbitrary code. (CVE-2021-4083)

    It was discovered that the simulated networking device driver for the Linux kernel did not properly     initialize memory in certain situations. A local attacker could use this to expose sensitive information     (kernel memory). (CVE-2021-4135)

    Kirill Tkhai discovered that the XFS file system implementation in the Linux kernel did not calculate size     correctly when pre-allocating space in some situations. A local attacker could use this to expose     sensitive information. (CVE-2021-4155)

    Eric Biederman discovered that the cgroup process migration implementation in the Linux kernel did not     perform permission checks correctly in some situations. A local attacker could possibly use this to gain     administrative privileges. (CVE-2021-4197)

    Brendan Dolan-Gavitt discovered that the aQuantia AQtion Ethernet device driver in the Linux kernel did     not properly validate meta-data coming from the device. A local attacker who can control an emulated     device can use this to cause a denial of service (system crash) or possibly execute arbitrary code.
    (CVE-2021-43975)

    It was discovered that the ARM Trusted Execution Environment (TEE) subsystem 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 or possibly execute arbitrary code. (CVE-2021-44733)

    It was discovered that the Phone Network protocol (PhoNet) implementation in the Linux kernel did not     properly perform reference counting in some error conditions. A local attacker could possibly use this to     cause a denial of service (memory exhaustion). (CVE-2021-45095)

    It was discovered that the Reliable Datagram Sockets (RDS) protocol implementation in the Linux kernel did     not properly deallocate memory in some error conditions. A local attacker could possibly use this to cause     a denial of service (memory exhaustion). (CVE-2021-45480)

    It was discovered that the BPF subsystem in the Linux kernel did not properly track pointer types on     atomic fetch operations in some situations. A local attacker could use this to expose sensitive     information (kernel pointer addresses). (CVE-2022-0264)

    Sushma Venkatesh Reddy discovered that the Intel i915 graphics driver in the Linux kernel did not perform     a GPU TLB flush in some situations. A local attacker could use this to cause a denial of service or     possibly execute arbitrary code. (CVE-2022-0330)

    It was discovered that the TIPC Protocol implementation in the Linux kernel did not properly initialize     memory in some situations. A local attacker could use this to expose sensitive information (kernel     memory). (CVE-2022-0382)

    It was discovered that the VMware Virtual GPU driver in the Linux kernel did not properly handle certain     failure conditions, leading to a stale entry in the file descriptor table. A local attacker could use this     to expose sensitive information or possibly gain administrative privileges. (CVE-2022-22942)

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 version of kernel installed on the remote host is prior to 4.14.262-135.489. It is, therefore, affected by multiple vulnerabilities as referenced in the ALAS-2022-1563 advisory.

    2025-01-30: CVE-2021-47483 was added to this advisory.

    2025-01-30: CVE-2021-47506 was added to this advisory.

    A flaw in the processing of received ICMP errors (ICMP fragment needed and ICMP redirect) in the Linux     kernel functionality was found to allow the ability to quickly scan open UDP ports. This flaw allows an     off-path remote user to effectively bypass the source port UDP randomization. The highest threat from this     vulnerability is to confidentiality and possibly integrity, because software that relies on UDP source     port randomization are indirectly affected as well. (CVE-2021-20322)

    A denial of service flaw for virtual machine guests in the Linux kernel's Xen hypervisor subsystem was     found in the way users call some interrupts with high frequency from one of the guests.A local user could     use this flaw to starve the resources resulting in a denial of service. (CVE-2021-28711)

    A denial of service flaw for virtual machine guests in the Linux kernel's Xen hypervisor subsystem was     found in the way users call some interrupts with high frequency from one of the guests.A local user could     use this flaw to starve the resources resulting in a denial of service. (CVE-2021-28712)

    A denial of service flaw for virtual machine guests in the Linux kernel's Xen hypervisor subsystem was     found in the way users call some interrupts with high frequency from one of the guests.A local user could     use this flaw to starve the resources resulting in a denial of service. (CVE-2021-28713)

    Incoming data packets for a guest in the Linux kernel's netback driver are buffered until the guest is     ready to process them. There are some measures taken for avoiding to pile up too much data, but those can     be bypassed by the guest: The timeout could even never trigger if the guest manages to have only one free     slot in its RX queue ring page and the next package would require more than one free slot, which may be     the case when using GSO, XDP, or software hashing. (CVE-2021-28714)

    Incoming data packets for a guest in the Linux kernel's netback driver are buffered until the guest is     ready to process them. There are some measures taken for avoiding to pile up too much data, but those can     be bypassed by the guest: There is a timeout how long the client side of an interface can stop consuming     new packets before it is assumed to have stalled, but this timeout is rather long (60 seconds by default).
    Using a UDP connection on a fast interface can easily accumulate gigabytes of data in that time.
    (CVE-2021-28715)

    A flaw was found in the Linux SCTP stack. A blind attacker may be able to kill an existing SCTP     association through invalid chunks if the attacker knows the IP-addresses and port numbers being used and     the attacker can send packets with spoofed IP addresses. (CVE-2021-3772)

    A memory leak flaw in the Linux kernel's hugetlbfs memory usage was found in the way the user maps some     regions of memory twice using shmget() which are aligned to PUD alignment with the fault of some of the     memory pages. A local user could use this flaw to get unauthorized access to some data. (CVE-2021-4002)

    A data leak flaw was found in the way XFS_IOC_ALLOCSP IOCTL in the XFS filesystem allowed for size     increase of files with unaligned size. A local attacker could use this flaw to leak data on the XFS     filesystem otherwise not accessible to them. (CVE-2021-4155)

    In the Linux kernel, the following vulnerability has been resolved:

    regmap: Fix possible double-free in regcache_rbtree_exit() (CVE-2021-47483)

    In the Linux kernel, the following vulnerability has been resolved:

    nfsd: fix use-after-free due to delegation race (CVE-2021-47506)

    The cgroup release_agent is called with call_usermodehelper. The function call_usermodehelper starts the     release_agent with a full set of capabilities. Therefore require capabilities when setting the     release_agent. (CVE-2022-0492)

Tenable has extracted the preceding description block directly from the tested product 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 SLES15 host has packages installed that are affected by multiple vulnerabilities as referenced in the SUSE-SU-2022:0181-1 advisory.

    The SUSE MicroOS 5.0 RT kernel was updated to receive various security and bugfixes.

    The following security bugs were fixed:

    - CVE-2021-4001: Fixed a race condition when the EBPF map is frozen. (bsc#1192990)
    - CVE-2021-4002: Added a missing TLB flush that could lead to leak or corruption of data in hugetlbfs.
    (bsc#1192946)
    - CVE-2021-28711: Fixed a rogue backends that could cause DoS of guests via high frequency events by     hardening blkfront against event channel storms. (bsc#1193440)
    - CVE-2021-28712: Fixed a rogue backends that could cause DoS of guests via high frequency events by     hardening netfront against event channel storms. (bsc#1193440)
    - CVE-2021-28713: Fixed a rogue backends that could cause DoS of guests via high frequency events by     hardening hvc_xen against event channel storms. (bsc#1193440)
    - CVE-2021-28714: Fixed an issue where a guest could force Linux netback driver to hog large amounts of     kernel memory by fixing rx queue stall detection. (bsc#1193442)
    - CVE-2021-28715: Fixed an issue where a guest could force Linux netback driver to hog large amounts of     kernel memory by do not queueing unlimited number of packages.  (bsc#1193442)
    - CVE-2021-33098: Fixed improper input validation in the Intel(R) Ethernet ixgbe driver that could allow     an authenticate user to cause a denial of service (bnc#1192877).
    - CVE-2021-43975: Fixed a flaw in hw_atl_utils_fw_rpc_wait that could allow an attacker (who can introduce     a crafted device) to trigger an out-of-bounds write via a crafted length value. (bnc#1192845)
    - CVE-2021-43976: Fixed a flaw that could allow an attacker (who can connect a crafted USB device) to     cause a denial of service. (bnc#1192847)


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 SLES15 / SLES_SAP15 host has packages installed that are affected by multiple vulnerabilities as referenced in the SUSE-SU-2022:0367-1 advisory.

    The SUSE Linux Enterprise 15 kernel was updated to receive various security and bugfixes.


    The following security bugs were fixed:

    - CVE-2022-0435: Fixed remote stack overflow in net/tipc module that validate domain record count on input     (bsc#1195254).
    - CVE-2021-3564: Fixed double-free memory corruption in the Linux kernel HCI device initialization     subsystem that could have been used by attaching malicious HCI TTY Bluetooth devices. A local user could     use this flaw to crash the system (bnc#1186207).
    - CVE-2021-45095: Fixed refcount leak in pep_sock_accept in net/phonet/pep.c (bnc#1193867).
    - CVE-2021-39657: Fixed out of bounds read due to a missing bounds check in ufshcd_eh_device_reset_handler     of ufshcd.c. This could lead to local information disclosure with System execution privileges needed     (bnc#1193864).
    - CVE-2021-39648: Fixed possible disclosure of kernel heap memory due to a race condition in     gadget_dev_desc_UDC_show of configfs.c. This could lead to local information disclosure with System     execution privileges needed. User interaction is not needed for exploitation (bnc#1193861).
    - CVE-2021-44733: Fixed a use-after-free exists in drivers/tee/tee_shm.c in the TEE subsystem, that could     have occured because of a race condition in tee_shm_get_from_id during an attempt to free a shared memory     object (bnc#1193767).
    - CVE-2022-0330: Fixed flush TLBs before releasing backing store (bsc#1194880).
    - CVE-2022-0322: Fixed SCTP issue with account stream padding length for reconf chunk (bsc#1194985).
    - CVE-2021-4197: Use cgroup open-time credentials for process migraton perm checks (bsc#1194302).
    - CVE-2021-4202: Fixed NFC race condition by adding NCI_UNREG flag (bsc#1194529).
    - CVE-2021-4083: Fixed a read-after-free memory flaw inside the garbage collection for Unix domain socket     file handlers when users call close() and fget() simultaneouslyand can potentially trigger a race     condition (bnc#1193727).
    - CVE-2021-4149: Fixed btrfs unlock newly allocated extent buffer after error (bsc#1194001).
    - CVE-2021-45486: Fixed an information leak because the hash table is very small in net/ipv4/route.c     (bnc#1194087).
    - CVE-2021-0920: Fixed a local privilege escalation due to an use after free bug in unix_gc (bsc#1193731).
    - CVE-2021-28711: Fixed issue with xen/blkfront to harden blkfront against event channel storms (XSA-391)     (bsc#1193440).
    - CVE-2021-28712: Fixed issue with xen/netfront to harden netfront against event channel storms (XSA-391)     (bsc#1193440).
    - CVE-2021-28713: Fixed issue with xen/console to harden hvc_xen against event channel storms (XSA-391)     (bsc#1193440).
    - CVE-2021-28714: Fixed issue with xen/netback to handle rx queue stall detection (XSA-392) (bsc#1193442).
    - CVE-2021-28715: Fixed issue with xen/netback to do not queue unlimited number of packages (XSA-392)     (bsc#1193442).
    - CVE-2018-25020: Fixed an overflow in the BPF subsystem due to a mishandling of a long jump over an     instruction sequence where inner instructions require substantial expansions into multiple BPF     instructions. This affects kernel/bpf/core.c and net/core/filter.c (bnc#1193575).
    - CVE-2021-0935: Fixed possible out of bounds write in ip6_xmit of ip6_output.c due to a use after free.
    This could lead to local escalation of privilege with System execution privileges needed. User interaction     is not needed for exploitation (bnc#1192032).
    - CVE-2020-27820: Fixed a vulnerability where a use-after-frees in nouveau's postclose() handler could     happen if removing device (bsc#1179599).
    - CVE-2021-4002: Fixed incorrect TLBs flush in hugetlbfs after huge_pmd_unshare (bsc#1192946).
    - CVE-2021-43975: hw_atl_utils_fw_rpc_wait in drivers/net/ethernet/aquantia/atlantic/hw_atl/hw_atl_utils.c     allowed an attacker (who can introduce a crafted device) to trigger an out-of-bounds write via a crafted     length value (bnc#1192845).
    - CVE-2021-33098: Improper input validation in the Intel(R) Ethernet ixgbe driver for Linux before version     3.17.3 may have allowed an authenticated user to potentially enable denial of service via local access     (bnc#1192877).
    - CVE-2021-43976: mwifiex_usb_recv in drivers/net/wireless/marvell/mwifiex/usb.c allowed an attacker (who     can connect a crafted USB device) to cause a denial of service (skb_over_panic) (bnc#1192847).
    - CVE-2019-15126: Fixed a vulnerability in Broadcom and Cypress Wi-Fi chips, used in RPi family of devices     aka 'Kr00k' (bsc#1167162).
    - CVE-2021-4159: Fixed kernel ptr leak vulnerability via BPF in coerce_reg_to_size (bsc#1194227).



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-2022:0371-1 advisory.

    The SUSE Linux Enterprise 12 SP4 LTSS kernel was updated to receive various security and bugfixes.


    The following security bugs were fixed:

    - CVE-2022-0435: Fixed remote stack overflow in net/tipc module that validate domain record count on input     (bsc#1195254).
    - CVE-2022-0330: Fixed flush TLBs before releasing backing store (bsc#1194880).
    - CVE-2022-0322: Fixed SCTP issue with account stream padding length for reconf chunk (bsc#1194985).
    - CVE-2021-45486: Fixed information leak inside the IPv4 implementation caused by very small hash table     (bnc#1194087).
    - CVE-2021-45095: Fixed refcount leak in pep_sock_accept in net/phonet/pep.c (bnc#1193867).
    - CVE-2021-44733: Fixed a use-after-free exists in drivers/tee/tee_shm.c in the TEE subsystem, that could     have occured because of a race condition in tee_shm_get_from_id during an attempt to free a shared memory     object (bnc#1193767).
    - CVE-2021-43976: Fixed a flaw that could allow an attacker (who can connect a crafted USB device) to     cause a denial of service. (bnc#1192847)
    - CVE-2021-43975: Fixed a flaw in hw_atl_utils_fw_rpc_wait that could allow an attacker (who can introduce     a crafted device) to trigger an out-of-bounds write via a crafted length value. (bsc#1192845)
    - CVE-2021-4202: Fixed NFC race condition by adding NCI_UNREG flag (bsc#1194529).
    - CVE-2021-4197: Use cgroup open-time credentials for process migraton perm checks (bsc#1194302).
    - CVE-2021-4159: Fixed kernel ptr leak vulnerability via BPF in coerce_reg_to_size (bsc#1194227).
    - CVE-2021-4149: Fixed btrfs unlock newly allocated extent buffer after error (bsc#1194001).
    - CVE-2021-4083: Fixed a read-after-free memory flaw inside the garbage collection for Unix domain socket     file handlers when users call close() and fget() simultaneouslyand can potentially trigger a race     condition (bnc#1193727).
    - CVE-2021-4002: Fixed a missing TLB flush that could lead to leak or corruption of data in hugetlbfs.
    (bsc#1192946)
    - CVE-2021-39657: Fixed out of bounds read due to a missing bounds check in ufshcd_eh_device_reset_handler     of ufshcd.c. This could lead to local information disclosure with System execution privileges needed     (bnc#1193864).
    - CVE-2021-39648: Fixed possible disclosure of kernel heap memory due to a race condition in     gadget_dev_desc_UDC_show of configfs.c. This could lead to local information disclosure with System     execution privileges needed. User interaction is not needed for exploitation (bnc#1193861).
    - CVE-2021-3564: Fixed double-free memory corruption in the Linux kernel HCI device initialization     subsystem that could have been used by attaching malicious HCI TTY Bluetooth devices. A local user could     use this flaw to crash the system (bnc#1186207).
    - CVE-2021-33098: Fixed a potential denial of service in Intel(R) Ethernet ixgbe driver due to improper     input validation. (bsc#1192877)
    - CVE-2021-28715: Fixed issue with xen/netback to do not queue unlimited number of packages (XSA-392)     (bsc#1193442).
    - CVE-2021-28714: Fixed issue with xen/netback to add rx queue stall detection (XSA-392) (bsc#1193442).
    - CVE-2021-28713: Fixed issue with xen/console to harden hvc_xen against event channel storms (XSA-391)     (bsc#1193440).
    - CVE-2021-28712: Fixed issue with xen/netfront to harden netfront against event channel storms (XSA-391)     (bsc#1193440).
    - CVE-2021-28711: Fixed issue with xen/blkfront to harden blkfront against event channel storms (XSA-391)     (bsc#1193440).
    - CVE-2021-0935: Fixed possible out of bounds write in ip6_xmit of ip6_output.c due to a use after free.
    This could lead to local escalation of privilege with System execution privileges needed. User interaction     is not needed for exploitation (bnc#1192032).
    - CVE-2021-0920: Fixed use after free bug due to a race condition in unix_scm_to_skb of af_unix.c. This     could have led to local escalation of privilege with System execution privileges needed (bnc#1193731).
    - CVE-2020-27820: Fixed a vulnerability where a use-after-frees in nouveau's postclose() handler could     happen if removing device. (bsc#1179599)
    - CVE-2019-15126: Fixed a vulnerability in Broadcom and Cypress Wi-Fi chips, used in RPi family of devices     aka 'Kr00k'. (bsc#1167162)
    - CVE-2018-25020: Fixed an overflow in the BPF subsystem due to a mishandling of a long jump over an     instruction sequence where inner instructions require substantial expansions into multiple BPF     instructions. This affects kernel/bpf/core.c and net/core/filter.c (bnc#1193575).



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 SLED15 / SLED_SAP15 / SLES15 / SLES_SAP15 host has packages installed that are affected by multiple vulnerabilities as referenced in the SUSE-SU-2022:0131-1 advisory.

    The SUSE Linux Enterprise 15 SP3 kernel was updated

    - Unprivileged BPF has been disabled by default to reduce attack surface as too many security issues have     happened in the past (jsc#SLE-22573)       You can reenable via systemctl setting /proc/sys/kernel/unprivileged_bpf_disabled to 0.
    (kernel.unprivileged_bpf_disabled = 0)

    The following security bugs were fixed:

    - CVE-2021-45485: Fixed an information leak because of certain use of a hash table which use IPv6 source     addresses. (bsc#1194094)
    - CVE-2021-45486: Fixed an information leak because the hash table is very small in net/ipv4/route.c.
    (bnc#1194087).
    - CVE-2021-4001: Fixed a race condition when the EBPF map is frozen. (bsc#1192990)
    - CVE-2021-28715: Fixed an issue where a guest could force Linux netback driver to hog large amounts of     kernel memory by do not queueing unlimited number of packages.  (bsc#1193442)
    - CVE-2021-28714: Fixed an issue where a guest could force Linux netback driver to hog large amounts of     kernel memory by fixing rx queue stall detection. (bsc#1193442)
    - CVE-2021-28713: Fixed a rogue backends that could cause DoS of guests via high frequency events by     hardening hvc_xen against event channel storms. (bsc#1193440)
    - CVE-2021-28712: Fixed a rogue backends that could cause DoS of guests via high frequency events by     hardening netfront against event channel storms. (bsc#1193440)
    - CVE-2021-28711: Fixed a rogue backends that could cause DoS of guests via high frequency events by     hardening blkfront against event channel storms. (bsc#1193440)
    - CVE-2020-24504: Fixed an uncontrolled resource consumption in some Intel(R) Ethernet E810 Adapter     drivers that may have allowed an authenticated user to potentially enable denial of service via local     access. (bnc#1182404)
    - CVE-2021-43975: Fixed a flaw in hw_atl_utils_fw_rpc_wait that could allow an attacker (who can introduce     a crafted device) to trigger an out-of-bounds write via a crafted length value. (bnc#1192845)
    - CVE-2021-43976: Fixed a flaw that could allow an attacker (who can connect a crafted USB device) to     cause a denial of service. (bnc#1192847)
    - CVE-2021-4002: Added a missing TLB flush that could lead to leak or corruption of data in hugetlbfs.
    (bsc#1192946)
    - CVE-2020-27820: Fixed a vulnerability where a use-after-frees in nouveau's postclose() handler could     happen if removing device. (bnc#1179599)


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.

ID	名称	产品	系列	发布时间	最近更新时间	严重程度
159579	Ubuntu 20.04 LTS : Linux kernel vulnerabilities (USN-5368-1)	Nessus	Ubuntu Local Security Checks	2022/4/7	2026/6/3	high
266959	Unity Linux 20.1070e Security Update: kernel (UTSA-2025-414631)	Nessus	Unity Linux Local Security Checks	2025/10/7	2025/10/15	medium
159949	EulerOS 2.0 SP10 : kernel (EulerOS-SA-2022-1489)	Nessus	Huawei Local Security Checks	2022/4/20	2023/11/1	high
159983	EulerOS 2.0 SP10 : kernel (EulerOS-SA-2022-1508)	Nessus	Huawei Local Security Checks	2022/4/20	2023/11/1	high
156648	openSUSE 15 Security Update : kernel (openSUSE-SU-2022:0056-1)	Nessus	SuSE Local Security Checks	2022/1/12	2023/11/21	high
157463	Ubuntu 20.04 LTS : Linux kernel (OEM) vulnerabilities (USN-5278-1)	Nessus	Ubuntu Local Security Checks	2022/2/9	2024/8/27	high
157410	Amazon Linux AMI : kernel (ALAS-2022-1563)	Nessus	Amazon Linux Local Security Checks	2022/2/7	2026/6/3	high
157076	SUSE SLES15: cluster-md-kmp-rt / dlm-kmp-rt / gfs2-kmp-rt / kernel-devel-rt / etc (SUSE-SU-2022:0181-1)	Nessus	SuSE Local Security Checks	2022/1/26	2026/6/26	medium
157895	SUSE SLES15: cluster-md-kmp-default / dlm-kmp-default / gfs2-kmp-default / etc (SUSE-SU-2022:0367-1)	Nessus	SuSE Local Security Checks	2022/2/11	2026/6/26	high
157939	SUSE SLES12: cluster-md-kmp-default / dlm-kmp-default / gfs2-kmp-default / etc (SUSE-SU-2022:0371-1)	Nessus	SuSE Local Security Checks	2022/2/12	2026/6/26	high
156883	SUSE SLED15: cluster-md-kmp-default / dlm-kmp-default / gfs2-kmp-default / etc (SUSE-SU-2022:0131-1)	Nessus	SuSE Local Security Checks	2022/1/20	2026/6/26	high
236670	Alibaba Cloud Linux 3 : 0125: cloud-kernel bugfix, enhancement and (ALINUX3-SA-2022:0125)	Nessus	Alibaba Cloud Linux Local Security Checks	2025/5/14	2026/6/3	high

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