The remote Redhat Enterprise Linux 7 host has packages installed that are affected by multiple vulnerabilities as referenced in the RHSA-2020:4278 advisory.

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

    Security Fix(es):

    * kernel: net: bluetooth: type confusion while processing AMP packets (CVE-2020-12351)

    * kernel: net: bluetooth: information leak when processing certain AMP packets (CVE-2020-12352)

    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.

The remote Ubuntu 16.04 LTS / 18.04 LTS / 20.04 LTS host has a package installed that is affected by multiple vulnerabilities as referenced in the USN-4591-1 advisory.

    Andy Nguyen discovered that the Bluetooth L2CAP implementation in the Linux kernel contained a type-     confusion error. A physically proximate remote attacker could use this to cause a denial of service     (system crash) or possibly execute arbitrary code. (CVE-2020-12351)

    Andy Nguyen discovered that the Bluetooth A2MP implementation in the Linux kernel did not properly     initialize memory in some situations. A physically proximate remote attacker could use this to expose     sensitive information (kernel memory). (CVE-2020-12352)

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 18.04 LTS host has a package installed that is affected by multiple vulnerabilities as referenced in the USN-4592-1 advisory.

    Andy Nguyen discovered that the Bluetooth L2CAP implementation in the Linux kernel contained a type-     confusion error. A physically proximate remote attacker could use this to cause a denial of service     (system crash) or possibly execute arbitrary code. (CVE-2020-12351)

    Andy Nguyen discovered that the Bluetooth A2MP implementation in the Linux kernel did not properly     initialize memory in some situations. A physically proximate remote attacker could use this to expose     sensitive information (kernel memory). (CVE-2020-12352)

    Andy Nguyen discovered that the Bluetooth HCI event packet parser in the Linux kernel did not properly     handle event advertisements of certain sizes, leading to a heap-based buffer overflow. A physically     proximate remote attacker could use this to cause a denial of service (system crash) or possibly execute     arbitrary code. (CVE-2020-24490)

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 7 host has packages installed that are affected by multiple vulnerabilities as referenced in the RHSA-2020:4280 advisory.

    The kernel-rt packages provide the Real Time Linux Kernel, which enables fine-tuning for systems with     extremely high determinism requirements.

    Security Fix(es):

    * kernel: net: bluetooth: type confusion while processing AMP packets (CVE-2020-12351)

    * kernel: net: bluetooth: information leak when processing certain AMP packets (CVE-2020-12352)

    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.

The remote Redhat Enterprise Linux 8 host has packages installed that are affected by multiple vulnerabilities as referenced in the RHSA-2020:4288 advisory.

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

    Security Fix(es):

    * kernel: net: bluetooth: type confusion while processing AMP packets (CVE-2020-12351)

    * kernel: net: bluetooth: information leak when processing certain AMP packets (CVE-2020-12352)

    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.

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

CVE-2020-12351

Andy Nguyen discovered a flaw in the Bluetooth implementation in the way L2CAP packets with A2MP CID are handled. A remote attacker in short distance knowing the victim's Bluetooth device address can send a malicious l2cap packet and cause a denial of service or possibly arbitrary code execution with kernel privileges.

CVE-2020-12352

Andy Nguyen discovered a flaw in the Bluetooth implementation. Stack memory is not properly initialised when handling certain AMP packets.
A remote attacker in short distance knowing the victim's Bluetooth device address address can retrieve kernel stack information.

CVE-2020-25211

A flaw was discovered in netfilter subsystem. A local attacker able to inject conntrack Netlink configuration can cause a denial of service.

CVE-2020-25643

ChenNan Of Chaitin Security Research Lab discovered a flaw in the hdlc_ppp module. Improper input validation in the ppp_cp_parse_cr() function may lead to memory corruption and information disclosure.

CVE-2020-25645

A flaw was discovered in the interface driver for GENEVE encapsulated traffic when combined with IPsec. If IPsec is configured to encrypt traffic for the specific UDP port used by the GENEVE tunnel, tunneled data isn't correctly routed over the encrypted link and sent unencrypted instead.

For Debian 9 stretch, these problems have been fixed in version 4.19.152-1~deb9u1.

We recommend that you upgrade your linux-4.19 packages.

For the detailed security status of linux-4.19 please refer to its security tracker page at:
https://security-tracker.debian.org/tracker/linux-4.19

NOTE: Tenable Network Security has extracted the preceding description block directly from the DLA 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 :

  - In kbd_keycode of keyboard.c, there is a possible out     of bounds write due to a missing bounds 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-144161459(CVE-2020-0431)

  - A flaw was found in the HDLC_PPP module of the Linux     kernel in versions before 5.9-rc7. Memory corruption     and a read overflow is caused by improper input     validation in the ppp_cp_parse_cr function which can     cause the system to crash or cause a denial of service.
    The highest threat from this vulnerability is to data     confidentiality and integrity as well as system     availability.(CVE-2020-25643)

  - A flaw was found in the Linux kernel in versions before     5.9-rc7. Traffic between two Geneve endpoints may be     unencrypted when IPsec is configured to encrypt traffic     for the specific UDP port used by the GENEVE tunnel     allowing anyone between the two endpoints to read the     traffic unencrypted. The main threat from this     vulnerability is to data     confidentiality.(CVE-2020-25645)

  - An information leak flaw was found in the way the Linux     kernel's Bluetooth stack implementation handled     initialization of stack memory when handling certain     AMP packets. A remote attacker in adjacent range could     use this flaw to leak small portions of stack memory on     the system by sending a specially crafted AMP packets.
    The highest threat from this vulnerability is to data     confidentiality.(CVE-2020-12352)

  - A flaw was found in the way the Linux kernel Bluetooth     implementation handled L2CAP packets with A2MP CID. A     remote attacker in adjacent range could use this flaw     to crash the system causing denial of service or     potentially execute arbitrary code on the system by     sending a specially crafted L2CAP packet. The highest     threat from this vulnerability is to data     confidentiality and integrity as well as system     availability.(CVE-2020-12351)

  - A missing CAP_NET_RAW check in NFC socket creation in     net/nfc/rawsock.c in the Linux kernel before 5.8.2     could be used by local attackers to create raw sockets,     bypassing security mechanisms, aka     CID-26896f01467a.(CVE-2020-26088)

  - A flaw was found in the Linux kernel's implementation     of biovecs in versions before 5.9-rc7. A zero-length     biovec request issued by the block subsystem could     cause the kernel to enter an infinite loop, causing a     denial of service. This flaw allows a local attacker     with basic privileges to issue requests to a block     device, resulting in a denial of service. The highest     threat from this vulnerability is to system     availability.(CVE-2020-25641)

  - In skb_to_mamac of networking.c, there is a possible     out of bounds write due to an integer overflow. 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-143560807(CVE-2020-0432)

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 :

  - In kbd_keycode of keyboard.c, there is a possible out     of bounds write due to a missing bounds 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-144161459(CVE-2020-0431)

  - A flaw was found in the HDLC_PPP module of the Linux     kernel in versions before 5.9-rc7. Memory corruption     and a read overflow is caused by improper input     validation in the ppp_cp_parse_cr function which can     cause the system to crash or cause a denial of service.
    The highest threat from this vulnerability is to data     confidentiality and integrity as well as system     availability.(CVE-2020-25643)

  - A flaw was found in the Linux kernel in versions before     5.9-rc7. Traffic between two Geneve endpoints may be     unencrypted when IPsec is configured to encrypt traffic     for the specific UDP port used by the GENEVE tunnel     allowing anyone between the two endpoints to read the     traffic unencrypted. The main threat from this     vulnerability is to data     confidentiality.(CVE-2020-25645)

  - An information leak flaw was found in the way the Linux     kernel's Bluetooth stack implementation handled     initialization of stack memory when handling certain     AMP packets. A remote attacker in adjacent range could     use this flaw to leak small portions of stack memory on     the system by sending a specially crafted AMP packets.
    The highest threat from this vulnerability is to data     confidentiality.(CVE-2020-12352)

  - A flaw was found in the way the Linux kernel Bluetooth     implementation handled L2CAP packets with A2MP CID. A     remote attacker in adjacent range could use this flaw     to crash the system causing denial of service or     potentially execute arbitrary code on the system by     sending a specially crafted L2CAP packet. The highest     threat from this vulnerability is to data     confidentiality and integrity as well as system     availability.(CVE-2020-12351)

  - A heap buffer overflow flaw was found in the way the     Linux kernel's Bluetooth implementation processed     extended advertising report events. This flaw allows a     remote attacker in an adjacent range to crash the     system, causing a denial of service or to potentially     execute arbitrary code on the system by sending a     specially crafted Bluetooth packet. The highest threat     from this vulnerability is to confidentiality,     integrity, as well as system     availability.(CVE-2020-24490))

  - A missing CAP_NET_RAW check in NFC socket creation in     net/nfc/rawsock.c in the Linux kernel before 5.8.2     could be used by local attackers to create raw sockets,     bypassing security mechanisms, aka     CID-26896f01467a.(CVE-2020-26088)

  - A flaw was found in the Linux kernel's implementation     of biovecs in versions before 5.9-rc7. A zero-length     biovec request issued by the block subsystem could     cause the kernel to enter an infinite loop, causing a     denial of service. This flaw allows a local attacker     with basic privileges to issue requests to a block     device, resulting in a denial of service. The highest     threat from this vulnerability is to system     availability.(CVE-2020-25641)

  - In skb_to_mamac of networking.c, there is a possible     out of bounds write due to an integer overflow. 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-143560807(CVE-2020-0432)

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 version of kernel installed on the remote host is prior to 4.14.203-116.332. It is, therefore, affected by multiple vulnerabilities as referenced in the ALAS-2020-1446 advisory.

    In binder_release_work of binder.c, there is a possible use-after-free due to improper locking. This could     lead to local escalation of privilege in the kernel with no additional execution privileges needed. User     interaction is not needed for exploitation.Product: AndroidVersions: Android kernelAndroid ID:
    A-161151868References: N/A (cve-2020-0423)

    A flaw was found in the way the Linux kernel's Bluetooth implementation handled L2CAP (Logical Link     Control and Adaptation Protocol) packets with A2MP (Alternate MAC-PHY Manager Protocol) CID (Channel     Identifier). This flaw allows a remote attacker in an adjacent range to crash the system, causing a denial     of service or potentially executing arbitrary code on the system by sending a specially crafted L2CAP     packet. The highest threat from this vulnerability is to data confidentiality and integrity as well as     system availability. (CVE-2020-12351)

    An information leak flaw was found in the way Linux kernel's Bluetooth stack implementation handled     initialization of stack memory when handling certain AMP (Alternate MAC-PHY Manager Protocol) packets.
    This flaw allows a remote attacker in an adjacent range to leak small portions of stack memory on the     system by sending specially crafted AMP packets. The highest threat from this vulnerability is to data     confidentiality. (CVE-2020-12352)

    A flaw was found in the Linux kernel. Memory corruption can be exploited to gain root privileges from     unprivileged processes. The highest threat from this vulnerability is to data confidentiality and     integrity as well as system availability. (CVE-2020-14386)

    A heap buffer overflow flaw was found in the way the Linux kernel's Bluetooth implementation processed     extended advertising report events. This flaw allows a remote attacker in an adjacent range to crash the     system, causing a denial of service or to potentially execute arbitrary code on the system by sending a     specially crafted Bluetooth packet. The highest threat from this vulnerability is to confidentiality,     integrity, as well as system availability. (CVE-2020-24490)

    A flaw was found in the Linux kernel. A local attacker, able to inject conntrack netlink configuration,     could overflow a local buffer causing crashes or triggering the use of incorrect protocol numbers in     ctnetlink_parse_tuple_filter in net/netfilter/nf_conntrack_netlink.c. The highest threat from this     vulnerability is to data confidentiality and integrity as well as system availability. (CVE-2020-25211)

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

The following security bugs were fixed :

CVE-2020-12351: Fixed a type confusion while processing AMP packets aka 'BleedingTooth' aka 'BadKarma' (bsc#1177724).

CVE-2020-12352: Fixed an information leak when processing certain AMP packets aka 'BleedingTooth' aka 'BadChoice' (bsc#1177725).

CVE-2020-25645: Fixed an issue which traffic between two Geneve endpoints may be unencrypted when IPsec is configured to encrypt traffic for the specific UDP port used by the GENEVE tunnel allowing anyone between the two endpoints to read the traffic unencrypted (bsc#1177511).

CVE-2020-25212: Fixed a TOCTOU mismatch in the NFS client code (bsc#1176381).

The update package also includes non-security fixes. See advisory for details.

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

The SUSE Linux Enterprise 12 SP4 kernel was updated to receive various security and bug fixes.

The following security bugs were fixed :

CVE-2020-25705: A flaw in the way reply ICMP packets are limited in was found that allowed to quickly scan open UDP ports. This flaw allowed an off-path remote user to effectively bypassing source port UDP randomization. The highest threat from this vulnerability is to confidentiality and possibly integrity, because software and services that rely on UDP source port randomization (like DNS) are indirectly affected as well. Kernel versions may be vulnerable to this issue (bsc#1175721, bsc#1178782).

CVE-2020-25704: Fixed a memory leak in perf_event_parse_addr_filter() (bsc#1178393).

CVE-2020-25668: Fixed a use-after-free in con_font_op() (bnc#1178123).

CVE-2020-25656: Fixed a concurrency use-after-free in vt_do_kdgkb_ioctl (bnc#1177766).

CVE-2020-25285: Fixed a race condition between hugetlb sysctl handlers in mm/hugetlb.c (bnc#1176485).

CVE-2020-0430: Fixed an OOB read in skb_headlen of /include/linux/skbuff.h (bnc#1176723).

CVE-2020-14351: Fixed a race in the perf_mmap_close() function (bsc#1177086).

CVE-2020-16120: Fixed a permissions issue in ovl_path_open() (bsc#1177470).

CVE-2020-8694: Restricted energy meter to root access (bsc#1170415).

CVE-2020-12351: Implemented a kABI workaround for bluetooth l2cap_ops filter addition (bsc#1177724).

CVE-2020-12352: Fixed an information leak when processing certain AMP packets aka 'BleedingTooth' (bsc#1177725).

CVE-2020-25212: Fixed a TOCTOU mismatch in the NFS client code (bnc#1176381).

CVE-2020-25645: Fixed an an issue in IPsec that caused traffic between two Geneve endpoints to be unencrypted (bnc#1177511).

CVE-2020-14381: Fixed a UAF in the fast user mutex (futex) wait operation (bsc#1176011).

CVE-2020-25643: Fixed an improper input validation in the ppp_cp_parse_cr function of the HDLC_PPP module (bnc#1177206).

CVE-2020-25641: Fixed a zero-length biovec request issued by the block subsystem could have caused the kernel to enter an infinite loop, causing a denial of service (bsc#1177121).

CVE-2020-26088: Fixed an improper CAP_NET_RAW check in NFC socket creation could have been used by local attackers to create raw sockets, bypassing security mechanisms (bsc#1176990).

CVE-2020-14390: Fixed an out-of-bounds memory write leading to memory corruption or a denial of service when changing screen size (bnc#1176235).

CVE-2020-0432: Fixed an out of bounds write due to an integer overflow (bsc#1176721).

CVE-2020-0427: Fixed an out of bounds read due to a use after free (bsc#1176725).

CVE-2020-0431: Fixed an out of bounds write due to a missing bounds check (bsc#1176722).

CVE-2020-0404: Fixed a linked list corruption due to an unusual root cause (bsc#1176423).

CVE-2020-25284: Fixed an incomplete permission checking for access to rbd devices, which could have been leveraged by local attackers to map or unmap rbd block devices (bsc#1176482).

CVE-2020-27673: Fixed an issue where rogue guests could have caused denial of service of Dom0 via high frequency events (XSA-332 bsc#1177411)

CVE-2020-27675: Fixed a race condition in event handler which may crash dom0 (XSA-331 bsc#1177410).

The update package also includes non-security fixes. See advisory for details.

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

The SUSE Linux Enterprise 15 LTSS kernel was updated to receive various security and bug fixes.

The following security bugs were fixed :

CVE-2020-25705: A flaw in the way reply ICMP packets are limited in was found that allowed to quickly scan open UDP ports. This flaw allowed an off-path remote user to effectively bypassing source port UDP randomization. The highest threat from this vulnerability is to confidentiality and possibly integrity, because software and services that rely on UDP source port randomization (like DNS) are indirectly affected as well. Kernel versions may be vulnerable to this issue (bsc#1175721, bsc#1178782).

CVE-2020-25704: Fixed a memory leak in perf_event_parse_addr_filter() (bsc#1178393).

CVE-2020-25668: Fixed a use-after-free in con_font_op() (bnc#1178123).

CVE-2020-25656: Fixed a concurrency use-after-free in vt_do_kdgkb_ioctl (bnc#1177766).

CVE-2020-25285: Fixed a race condition between hugetlb sysctl handlers in mm/hugetlb.c (bnc#1176485).

CVE-2020-0430: Fixed an OOB read in skb_headlen of /include/linux/skbuff.h (bnc#1176723).

CVE-2020-14351: Fixed a race in the perf_mmap_close() function (bsc#1177086).

CVE-2020-16120: Fixed permission check to open real file when using overlayfs. It was possible to have a file not readable by an unprivileged user be copied to a mountpoint controlled by that user and then be able to access the file (bsc#1177470).

CVE-2020-8694: Restricted energy meter to root access (bsc#1170415).

CVE-2020-12351: Fixed a type confusion while processing AMP packets aka 'BleedingTooth' aka 'BadKarma' (bsc#1177724).

CVE-2020-12352: Fixed an information leak when processing certain AMP packets aka 'BleedingTooth' (bsc#1177725).

CVE-2020-25212: Fixed getxattr kernel panic and memory overflow (bsc#1176381).

CVE-2020-25645: Fixed an an issue in IPsec that caused traffic between two Geneve endpoints to be unencrypted (bnc#1177511).

CVE-2020-2521: Fixed getxattr kernel panic and memory overflow (bsc#1176381).

CVE-2020-14381: Fixed a use-after-free in the fast user mutex (futex) wait operation, which could have lead to memory corruption and possibly privilege escalation (bsc#1176011).

CVE-2020-25643: Fixed a memory corruption and a read overflow which could have caused by improper input validation in the ppp_cp_parse_cr function (bsc#1177206).

CVE-2020-25641: Fixed a zero-length biovec request issued by the block subsystem could have caused the kernel to enter an infinite loop, causing a denial of service (bsc#1177121).

CVE-2020-26088: Fixed an improper CAP_NET_RAW check in NFC socket creation could have been used by local attackers to create raw sockets, bypassing security mechanisms (bsc#1176990).

CVE-2020-14390: Fixed an out-of-bounds memory write leading to memory corruption or a denial of service when changing screen size (bnc#1176235).

CVE-2020-0432: Fixed an out of bounds write due to an integer overflow (bsc#1176721).

CVE-2020-0427: Fixed an out of bounds read due to a use after free (bsc#1176725).

CVE-2020-0431: Fixed an out of bounds write due to a missing bounds check (bsc#1176722).

CVE-2020-0404: Fixed a linked list corruption due to an unusual root cause (bsc#1176423).

CVE-2020-25284: Fixed an incomplete permission checking for access to rbd devices, which could have been leveraged by local attackers to map or unmap rbd block devices (bsc#1176482).

CVE-2020-27673: Fixed an issue where rogue guests could have caused denial of service of Dom0 via high frequency events (XSA-332 bsc#1177411)

CVE-2020-27675: Fixed a race condition in event handler which may crash dom0 (XSA-331 bsc#1177410).

The update package also includes non-security fixes. See advisory for details.

Note that Tenable Network Security has extracted the preceding description block directly from the SUSE 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 Virtualization for ARM 64 installation on the remote host is affected by the following vulnerabilities :

  - The kernel package contains the Linux kernel (vmlinuz),     the core of any Linux operating system. The kernel     handles the basic functions of the operating system:
    memory allocation, process allocation, device input and     output, etc. Security Fix(es):In uvc_scan_chain_forward     of uvc_driver.c, there is a possible linked list     corruption due to an unusual root cause. This could     lead to local escalation of privilege in the kernel     with no additional execution privileges needed. User     interaction is not needed for exploitation.Product:
    AndroidVersions: Android kernelAndroid ID:
    A-111893654References: Upstream kernel.(CVE-2020-0404)A     flaw was found in the Linux kernel in versions from     2.2.3 through 5.9.rc5. When changing screen size, an     out-of-bounds memory write can occur leading to memory     corruption or a denial of service. This highest threat     from this vulnerability is to system     availability.(CVE-2020-14390)A TOCTOU mismatch in the     NFS client code in the Linux kernel before 5.8.3 could     be used by local attackers to corrupt memory or     possibly have unspecified other impact because a size     check is in fs4proc.c instead of fsfs4xdr.c, aka     CID-b4487b935452.(CVE-2020-25212)A flaw was found in     the Linux kernel before 5.9-rc4. A failure of the file     system metadata validator in XFS can cause an inode     with a valid, user-creatable extended attribute to be     flagged as corrupt. This can lead to the filesystem     being shutdown, or otherwise rendered inaccessible     until it is remounted, leading to a denial of service.
    The highest threat from this vulnerability is to system     availability.(CVE-2020-14385)In the Linux kernel before     5.7.8, fsfsd/vfs.c (in the NFS server) can set     incorrect permissions on new filesystem objects when     the filesystem lacks ACL support, aka CID-22cf8419f131.
    This occurs because the current umask is not     considered.(CVE-2020-24394)The rbd block device driver     in drivers/block/rbd.c in the Linux kernel through     5.8.9 used incomplete permission checking for access to     rbd devices, which could be leveraged by local     attackers to map or unmap rbd block devices, aka     CID-f44d04e696fe.(CVE-2020-25284)An issue was     discovered in net/ipv4/sysctl_net_ipv4.c in the Linux     kernel before 5.0.11. There is a net/ipv4/tcp_input.c     signed integer overflow in tcp_ack_update_rtt() when     userspace writes a very large integer to /proc/sys     et/ipv4/tcp_min_rtt_wlen, leading to a denial of     service or possibly unspecified other impact, aka     CID-19fad20d15a6.(CVE-2019-18805)Insufficient input     validation in i40e driver for Intel(R) Ethernet 700     Series Controllers versions before 7.0 may allow an     authenticated user to potentially enable a denial of     service via local access.(CVE-2019-0147)Buffer overflow     in i40e driver for Intel(R) Ethernet 700 Series     Controllers versions before 7.0 may allow an     authenticated user to potentially enable an escalation     of privilege via local access.(CVE-2020-0145)A race     condition between hugetlb sysctl handlers in     mm/hugetlb.c in the Linux kernel before 5.8.8 could be     used by local attackers to corrupt memory, cause a NULL     pointer dereference, or possibly have unspecified other     impact, aka CID-17743798d812.(CVE-2020-25285)A memory     out-of-bounds read flaw was found in the Linux kernel     before 5.9-rc2 with the ext3/ext4 file system, in the     way it accesses a directory with broken indexing. This     flaw allows a local user to crash the system if the     directory exists. The highest threat from this     vulnerability is to system     availability.(CVE-2020-14314)A missing CAP_NET_RAW     check in NFC socket creation in net fc/rawsock.c in the     Linux kernel before 5.8.2 could be used by local     attackers to create raw sockets, bypassing security     mechanisms, aka CID-26896f01467a.(CVE-2020-26088)A flaw     was found in the HDLC_PPP module of the Linux kernel in     versions before 5.9-rc7. Memory corruption and a read     overflow is caused by improper input validation in the     ppp_cp_parse_cr function which can cause the system to     crash or cause a denial of service. The highest threat     from this vulnerability is to data confidentiality and     integrity as well as system     availability.(CVE-2020-25643)The Linux kernel, as used     in Red Hat Enterprise Linux 7, kernel-rt, and     Enterprise MRG 2 and when booted with UEFI Secure Boot     enabled, allows local users to bypass intended     securelevel/secureboot restrictions by leveraging     improper handling of secure_boot flag across kexec     reboot.(CVE-2015-7837)A flaw was found in the Linux     kernel's implementation of biovecs in versions before     5.9-rc7. A zero-length biovec request issued by the     block subsystem could cause the kernel to enter an     infinite loop, causing a denial of service. This flaw     allows a local attacker with basic privileges to issue     requests to a block device, resulting in a denial of     service. The highest threat from this vulnerability is     to system availability.(CVE-2020-25641)A flaw was found     in the Linux kernel before 5.9-rc4. Memory corruption     can be exploited to gain root privileges from     unprivileged processes. The highest threat from this     vulnerability is to data confidentiality and     integrity.(CVE-2020-14386)A flaw was found in the Linux     kernel in versions before 5.9-rc7. Traffic between two     Geneve endpoints may be unencrypted when IPsec is     configured to encrypt traffic for the specific UDP port     used by the GENEVE tunnel allowing anyone between the     two endpoints to read the traffic unencrypted. The main     threat from this vulnerability is to data     confidentiality.(CVE-2020-25645)perf: Fix race in     perf_mmap_close function.(CVE-2020-14351)An information     leak flaw was found in the way the Linux kernel's     Bluetooth stack implementation handled initialization     of stack memory when handling certain AMP packets. A     remote attacker in adjacent range could use this flaw     to leak small portions of stack memory on the system by     sending a specially crafted AMP packets. The highest     threat from this vulnerability is to data     confidentiality.(CVE-2020-12352)A flaw was found in the     way the Linux kernel Bluetooth implementation handled     L2CAP packets with A2MP CID. A remote attacker in     adjacent range could use this flaw to crash the system     causing denial of service or potentially execute     arbitrary code on the system by sending a specially     crafted L2CAP packet. The highest threat from this     vulnerability is to data confidentiality and integrity     as well as system availability.(CVE-2020-12351)A heap     buffer overflow flaw was found in the way the Linux     kernel's Bluetooth implementation processed extended     advertising report events. This flaw allows a remote     attacker in an adjacent range to crash the system,     causing a denial of service or to potentially execute     arbitrary code on the system by sending a specially     crafted Bluetooth packet. The highest threat from this     vulnerability is to confidentiality, integrity, as well     as system availability.(CVE-2020-24490)** RESERVED **     This candidate has been reserved by an organization or     individual that will use it when announcing a new     security problem. When the candidate has been     publicized, the details for this candidate will be     provided.(CVE-2020-25656)In skb_to_mamac of     networking.c, there is a possible out of bounds write     due to an integer overflow. 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-143560807(CVE-2020-0432)A     slab-out-of-bounds read in fbcon in the Linux kernel     before 5.9.7 could be used by local attackers to read     privileged information or potentially crash the kernel,     aka CID-3c4e0dff2095. This occurs because     KD_FONT_OP_COPY in drivers/tty/vt/vt.c can be used for     manipulations such as font height.(CVE-2020-28974)A     flaw memory leak in the Linux kernel performance     monitoring subsystem was found in the way if using     PERF_EVENT_IOC_SET_FILTER. A local user could use this     flaw to starve the resources causing denial of     service.(CVE-2020-25704)A buffer over-read (at the     framebuffer layer) in the fbcon code in the Linux     kernel before 5.8.15 could be used by local attackers     to read kernel memory, aka     CID-6735b4632def.(CVE-2020-28915)There is a     use-after-free problem seen due to a race condition     between the release of ptp_clock and cdev while     resource deallocation. When a (high privileged) process     allocates a ptp device file (like /dev/ptpX) and     voluntarily goes to sleep. During this time if the     underlying device is removed, it can cause an     exploitable condition as the process wakes up to     terminate and clean all attached files. The system     crashes due to the cdev structure being invalid (as     already freed) which is pointed to by the     inode.(CVE-2020-10690)A device tracking vulnerability     was found in the flow_dissector feature in the Linux     kernel. This flaw occurs because the auto flowlabel of     the UDP IPv6 packet relies on a 32-bit hashmd value as     a secret, and jhash (instead of siphash) is used. The     hashmd value remains the same starting from boot time     and can be inferred by an     attacker.(CVE-2019-18282)Use-after-free vulnerability     in fs/block_dev.c in the Linux kernel before 5.8 allows     local users to gain privileges or cause a denial of     service by leveraging improper access to a certain     error field.(CVE-2020-15436)The Linux kernel before     version 5.8 is vulnerable to a NULL pointer dereference     in     drivers/tty/serial/8250/8250_core.c:serial8250_isa_init
    _ports() that allows local users to cause a denial of     service by using the p->serial_in pointer which     uninitialized.(CVE-2020-15437)An issue was discovered     in kmem_cache_alloc_bulk in mm/slub.c in the Linux     kernel before 5.5.11. The slowpath lacks the required     TID increment, aka CID-fd4d9c7d0c71.(CVE-2020-29370)An     issue was discovered in the Linux kernel before 5.2.6.
    On NUMA systems, the Linux fair scheduler has a     use-after-free in show_numa_stats() because NUMA fault     statistics are inappropriately freed, aka     CID-16d51a590a8c.(CVE-2019-20934)An issue was     discovered in romfs_dev_read in fs/romfs/storage.c in     the Linux kernel before 5.8.4. Uninitialized memory     leaks to userspace, aka     CID-bcf85fcedfdd.(CVE-2020-29371)An issue was     discovered in the Linux kernel before 5.7.3, related to     mm/gup.c and mm/huge_memory.c. The get_user_pages (aka     gup) implementation, when used for a copy-on-write     page, does not properly consider the semantics of read     operations and therefore can grant unintended write     access, aka CID-17839856fd58.(CVE-2020-29374)A flaw was     found in the way RTAS handled memory accesses in     userspace to kernel communication. On a locked down     (usually due to Secure Boot) guest system running on     top of PowerVM or KVM hypervisors (pseries platform) a     root like local user could use this flaw to further     increase their privileges to that of a running     kernel.(CVE-2020-27777)In kbd_keycode of keyboard.c,     there is a possible out of bounds write due to a     missing bounds 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-144161459(CVE-2020-0431)

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 Oracle Linux 7 host has packages installed that are affected by multiple vulnerabilities as referenced in the ELSA-2020-5995 advisory.

    - vt: Disable KD_FONT_OP_COPY (Daniel Vetter)  [Orabug: 32187748]  {CVE-2020-28974}
    - xen/events: block rogue events for some time (Juergen Gross)  [Orabug: 32177538]  {CVE-2020-27673}
    - xen/events: defer eoi in case of excessive number of events (Juergen Gross)  [Orabug: 32177538]     {CVE-2020-27673}
    - xen/events: use a common cpu hotplug hook for event channels (Juergen Gross)  [Orabug: 32177538]     {CVE-2020-27673}
    - xen/events: switch user event channels to lateeoi model (Juergen Gross)  [Orabug: 32177538]     {CVE-2020-27673}
    - xen/pciback: use lateeoi irq binding (Juergen Gross)  [Orabug: 32177538]  {CVE-2020-27673}
    - xen/pvcallsback: use lateeoi irq binding (Juergen Gross)  [Orabug: 32177538]  {CVE-2020-27673}
    - xen/scsiback: use lateeoi irq binding (Juergen Gross)  [Orabug: 32177538]  {CVE-2020-27673}
    - xen/netback: use lateeoi irq binding (Juergen Gross)  [Orabug: 32177538]  {CVE-2020-27673}
    - xen/blkback: use lateeoi irq binding (Juergen Gross)  [Orabug: 32177538]  {CVE-2020-27673}
    - xen/events: add a new 'late EOI' evtchn framework (Juergen Gross)  [Orabug: 32177538]  {CVE-2020-27673}
    - xen/events: fix race in evtchn_fifo_unmask() (Juergen Gross)  [Orabug: 32177538]  {CVE-2020-27673}
    - xen/events: add a proper barrier to 2-level uevent unmasking (Juergen Gross)  [Orabug: 32177538]     {CVE-2020-27673}
    - tty: make FONTX ioctl use the tty pointer they were actually passed (Linus Torvalds)  [Orabug: 32122729]     {CVE-2020-25668}
    - vt: keyboard, extend func_buf_lock to readers (Jiri Slaby)  [Orabug: 32122952]  {CVE-2020-25656}     {CVE-2020-25656}
    - vt: keyboard, simplify vt_kdgkbsent (Jiri Slaby)  [Orabug: 32122952]  {CVE-2020-25656}
    - perf/core: Fix a memory leak in perf_event_parse_addr_filter() (kiyin)  [Orabug: 32131175]     {CVE-2020-25704}
    - perf/core: Fix bad use of igrab() (Song Liu)  [Orabug: 32131175]  {CVE-2020-25704}
    - powercap: restrict energy meter to root access (Kanth Ghatraju)  [Orabug: 32138487]  {CVE-2020-8694}     {CVE-2020-8695}
    - btrfs: inode: Verify inode mode to avoid NULL pointer dereference (Qu Wenruo)  [Orabug: 31864726]     {CVE-2019-19816}
    - Bluetooth: A2MP: Fix not initializing all members (Luiz Augusto von Dentz)  [Orabug: 32021288]     {CVE-2020-12352}

Tenable has extracted the preceding description block directly from the Oracle 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 Ubuntu 22.04 LTS host has a package installed that is affected by multiple vulnerabilities as referenced in the USN-7179-4 advisory.

    Andy Nguyen discovered that the Bluetooth L2CAP implementation in the Linux kernel contained a type-     confusion error. A physically proximate remote attacker could use this to cause a denial of service     (system crash) or possibly execute arbitrary code. (CVE-2020-12351)

    Andy Nguyen discovered that the Bluetooth A2MP implementation in the Linux kernel did not properly     initialize memory in some situations. A physically proximate remote attacker could use this to expose     sensitive information (kernel memory). (CVE-2020-12352)

    Andy Nguyen discovered that the Bluetooth HCI event packet parser in the Linux kernel did not properly     handle event advertisements of certain sizes, leading to a heap-based buffer overflow. A physically     proximate remote attacker could use this to cause a denial of service (system crash) or possibly execute     arbitrary code. (CVE-2020-24490)

    Several security issues were discovered in the Linux kernel. An attacker could possibly use these to     compromise the system. This update corrects flaws in the following subsystems:

    - GPU drivers;

    - Media drivers;

    - Network drivers;

    - SMB network file system;

    - Bluetooth subsystem;

    - Amateur Radio drivers;

    - Network traffic control;

    - VMware vSockets driver; (CVE-2024-43904, CVE-2024-35963, CVE-2024-35967, CVE-2024-40973, CVE-2024-26822,     CVE-2024-35965, CVE-2024-40910, CVE-2024-38553, CVE-2024-53057, CVE-2024-50264, CVE-2024-35966)

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.

ID	名称	产品	系列	发布时间	最近更新时间	严重程度
141540	RHEL 7 : kernel (RHSA-2020:4278)	Nessus	Red Hat Local Security Checks	2020/10/20	2024/11/7	high
141541	Ubuntu 16.04 LTS / 18.04 LTS / 20.04 LTS : Linux kernel vulnerabilities (USN-4591-1)	Nessus	Ubuntu Local Security Checks	2020/10/20	2024/8/27	high
141544	Ubuntu 18.04 LTS : Linux kernel vulnerabilities (USN-4592-1)	Nessus	Ubuntu Local Security Checks	2020/10/20	2024/8/27	high
141577	RHEL 7 : kernel-rt (RHSA-2020:4280)	Nessus	Red Hat Local Security Checks	2020/10/20	2024/11/7	high
141581	RHEL 8 : kernel (RHSA-2020:4288)	Nessus	Red Hat Local Security Checks	2020/10/20	2024/11/7	high
142052	Debian DLA-2417-1 : linux-4.19 security update	Nessus	Debian Local Security Checks	2020/10/29	2024/2/13	high
142260	EulerOS 2.0 SP9 : kernel (EulerOS-SA-2020-2429)	Nessus	Huawei Local Security Checks	2020/11/3	2022/5/11	high
142331	EulerOS 2.0 SP9 : kernel (EulerOS-SA-2020-2411)	Nessus	Huawei Local Security Checks	2020/11/3	2022/5/11	high
142978	Amazon Linux AMI : kernel (ALAS-2020-1446)	Nessus	Amazon Linux Local Security Checks	2020/11/18	2026/1/26	high
143673	SUSE SLES12 Security Update : kernel (SUSE-SU-2020:2981-1)	Nessus	SuSE Local Security Checks	2020/12/9	2024/2/6	high
143857	SUSE SLES12 Security Update : kernel (SUSE-SU-2020:3544-1)	Nessus	SuSE Local Security Checks	2020/12/9	2022/12/5	high
143875	SUSE SLES15 Security Update : kernel (SUSE-SU-2020:3532-1)	Nessus	SuSE Local Security Checks	2020/12/9	2022/12/5	high
144731	EulerOS Virtualization for ARM 64 3.0.2.0 : kernel (EulerOS-SA-2021-1039)	Nessus	Huawei Local Security Checks	2021/1/5	2022/5/11	critical
144207	Oracle Linux 7 : Unbreakable Enterprise kernel (ELSA-2020-5995)	Nessus	Oracle Linux Local Security Checks	2020/12/14	2026/2/9	high
214672	Ubuntu 22.04 LTS : Linux kernel (Xilinx ZynqMP) vulnerabilities (USN-7179-4)	Nessus	Ubuntu Local Security Checks	2025/1/27	2025/1/27	high

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