The remote Redhat Enterprise Linux 9 host has packages installed that are affected by multiple vulnerabilities as referenced in the RHSA-2023:1203 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: use-after-free caused by l2cap_reassemble_sdu() in net/bluetooth/l2cap_core.c (CVE-2022-3564)

    * kernel: stack overflow in do_proc_dointvec and proc_skip_spaces (CVE-2022-4378)

    * kernel: use-after-free in __nfs42_ssc_open() in fs/nfs/nfs4file.c leading to remote Denial of Service     attack (CVE-2022-4379)

    * kernel: Netfilter integer overflow vulnerability in nft_payload_copy_vlan (CVE-2023-0179)

    * ALSA: pcm: Move rwsem lock inside snd_ctl_elem_read to prevent UAF (CVE-2023-0266)

    * kernel: net: CPU soft lockup in TC mirred egress-to-ingress action (CVE-2022-4269)

    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.

    Bug Fix(es):

    * kernel-rt: update RT source tree to the latest RHEL-9.0.z7 Batch (BZ#2162424)

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 18.04 LTS / 20.04 LTS host has a package installed that is affected by multiple vulnerabilities as referenced in the USN-5756-3 advisory.

    Jann Horn discovered that the Linux kernel did not properly track memory allocations for anonymous VMA     mappings in some situations, leading to potential data structure reuse. A local attacker could use this to     cause a denial of service (system crash) or possibly execute arbitrary code. (CVE-2022-42703)

    It was discovered that a memory leak existed in the IPv6 implementation of the Linux kernel. A local     attacker could use this to cause a denial of service (memory exhaustion). (CVE-2022-3524)

    It was discovered that a race condition existed in the Bluetooth subsystem in the Linux kernel, leading to     a use-after-free vulnerability. A local attacker could use this to cause a denial of service (system     crash) or possibly execute arbitrary code. (CVE-2022-3564)

    It was discovered that the ISDN implementation of the Linux kernel contained a use-after-free     vulnerability. A privileged user could use this to cause a denial of service (system crash) or possibly     execute arbitrary code. (CVE-2022-3565)

    It was discovered that the TCP implementation in the Linux kernel contained a data race condition. An     attacker could possibly use this to cause undesired behaviors. (CVE-2022-3566)

    It was discovered that the IPv6 implementation in the Linux kernel contained a data race condition. An     attacker could possibly use this to cause undesired behaviors. (CVE-2022-3567)

    It was discovered that the Realtek RTL8152 USB Ethernet adapter driver in the Linux kernel did not     properly handle certain error conditions. A local attacker with physical access could plug in a specially     crafted USB device to cause a denial of service (memory exhaustion). (CVE-2022-3594)

    It was discovered that a null pointer dereference existed in the NILFS2 file system implementation in the     Linux kernel. A local attacker could use this to cause a denial of service (system crash). (CVE-2022-3621)

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

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

The remote Ubuntu 22.10 host has a package installed that is affected by multiple vulnerabilities as referenced in the USN-5754-2 advisory.

    It was discovered that the NFSD implementation in the Linux kernel did not properly handle some RPC     messages, leading to a buffer overflow. A remote attacker could use this to cause a denial of service     (system crash) or possibly execute arbitrary code. (CVE-2022-43945)

    It was discovered that a memory leak existed in the IPv6 implementation of the Linux kernel. A local     attacker could use this to cause a denial of service (memory exhaustion). (CVE-2022-3524)

    It was discovered that a race condition existed in the Bluetooth subsystem in the Linux kernel, leading to     a use-after-free vulnerability. A local attacker could use this to cause a denial of service (system     crash) or possibly execute arbitrary code. (CVE-2022-3564)

    It was discovered that the ISDN implementation of the Linux kernel contained a use-after-free     vulnerability. A privileged user could use this to cause a denial of service (system crash) or possibly     execute arbitrary code. (CVE-2022-3565)

    It was discovered that the TCP implementation in the Linux kernel contained a data race condition. An     attacker could possibly use this to cause undesired behaviors. (CVE-2022-3566)

    It was discovered that the IPv6 implementation in the Linux kernel contained a data race condition. An     attacker could possibly use this to cause undesired behaviors. (CVE-2022-3567)

    It was discovered that the Realtek RTL8152 USB Ethernet adapter driver in the Linux kernel did not     properly handle certain error conditions. A local attacker with physical access could plug in a specially     crafted USB device to cause a denial of service (memory exhaustion). (CVE-2022-3594)

    It was discovered that a null pointer dereference existed in the NILFS2 file system implementation in the     Linux kernel. A local attacker could use this to cause a denial of service (system crash). (CVE-2022-3621)

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-5774-1 advisory.

    Jann Horn discovered that the Linux kernel did not properly track memory allocations for anonymous VMA     mappings in some situations, leading to potential data structure reuse. A local attacker could use this to     cause a denial of service (system crash) or possibly execute arbitrary code. (CVE-2022-42703)

    It was discovered that a race condition existed in the instruction emulator of the Linux kernel on Arm     64-bit systems. A local attacker could use this to cause a denial of service (system crash).
    (CVE-2022-20422)

    It was discovered that the KVM implementation in the Linux kernel did not properly handle virtual CPUs     without APICs in certain situations. A local attacker could possibly use this to cause a denial of service     (host system crash). (CVE-2022-2153)

    Hao Sun and Jiacheng Xu discovered that the NILFS file system 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-2022-2978)

    Abhishek Shah discovered a race condition in the PF_KEYv2 implementation in the Linux kernel. A local     attacker could use this to cause a denial of service (system crash) or possibly expose sensitive     information (kernel memory). (CVE-2022-3028)

    It was discovered that the video4linux driver for Empia based TV cards in the Linux kernel did not     properly perform reference counting in some situations, leading to a use-after-free vulnerability. A local     attacker could use this to cause a denial of service (system crash) or possibly execute arbitrary code.
    (CVE-2022-3239)

    It was discovered that a memory leak existed in the IPv6 implementation of the Linux kernel. A local     attacker could use this to cause a denial of service (memory exhaustion). (CVE-2022-3524)

    It was discovered that a race condition existed in the Bluetooth subsystem in the Linux kernel, leading to     a use-after-free vulnerability. A local attacker could use this to cause a denial of service (system     crash) or possibly execute arbitrary code. (CVE-2022-3564)

    It was discovered that the ISDN implementation of the Linux kernel contained a use-after-free     vulnerability. A privileged user could use this to cause a denial of service (system crash) or possibly     execute arbitrary code. (CVE-2022-3565)

    It was discovered that the TCP implementation in the Linux kernel contained a data race condition. An     attacker could possibly use this to cause undesired behaviors. (CVE-2022-3566)

    It was discovered that the IPv6 implementation in the Linux kernel contained a data race condition. An     attacker could possibly use this to cause undesired behaviors. (CVE-2022-3567)

    It was discovered that the Realtek RTL8152 USB Ethernet adapter driver in the Linux kernel did not     properly handle certain error conditions. A local attacker with physical access could plug in a specially     crafted USB device to cause a denial of service (memory exhaustion). (CVE-2022-3594)

    It was discovered that a null pointer dereference existed in the NILFS2 file system implementation in the     Linux kernel. A local attacker could use this to cause a denial of service (system crash). (CVE-2022-3621)

    It was discovered that the IDT 77252 ATM PCI device driver in the Linux kernel did not properly remove any     pending timers during device exit, resulting in a use-after-free vulnerability. A local attacker could     possibly use this to cause a denial of service (system crash) or execute arbitrary code. (CVE-2022-3635)

    It was discovered that the Netlink Transformation (XFRM) subsystem in the Linux kernel contained a     reference counting error. A local attacker could use this to cause a denial of service (system crash).
    (CVE-2022-36879)

    Xingyuan Mo and Gengjia Chen discovered that the Promise SuperTrak EX storage controller driver in the     Linux kernel did not properly handle certain structures. A local attacker could potentially use this to     expose sensitive information (kernel memory). (CVE-2022-40768)

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 20.04 LTS / 22.04 LTS host has a package installed that is affected by multiple vulnerabilities as referenced in the USN-5779-1 advisory.

    It was discovered that the NFSD implementation in the Linux kernel did not properly handle some RPC     messages, leading to a buffer overflow. A remote attacker could use this to cause a denial of service     (system crash) or possibly execute arbitrary code. (CVE-2022-43945)

    Jann Horn discovered that the Linux kernel did not properly track memory allocations for anonymous VMA     mappings in some situations, leading to potential data structure reuse. A local attacker could use this to     cause a denial of service (system crash) or possibly execute arbitrary code. (CVE-2022-42703)

    It was discovered that a memory leak existed in the IPv6 implementation of the Linux kernel. A local     attacker could use this to cause a denial of service (memory exhaustion). (CVE-2022-3524)

    It was discovered that a race condition existed in the Bluetooth subsystem in the Linux kernel, leading to     a use-after-free vulnerability. A local attacker could use this to cause a denial of service (system     crash) or possibly execute arbitrary code. (CVE-2022-3564)

    It was discovered that the ISDN implementation of the Linux kernel contained a use-after-free     vulnerability. A privileged user could use this to cause a denial of service (system crash) or possibly     execute arbitrary code. (CVE-2022-3565)

    It was discovered that the TCP implementation in the Linux kernel contained a data race condition. An     attacker could possibly use this to cause undesired behaviors. (CVE-2022-3566)

    It was discovered that the IPv6 implementation in the Linux kernel contained a data race condition. An     attacker could possibly use this to cause undesired behaviors. (CVE-2022-3567)

    It was discovered that the Realtek RTL8152 USB Ethernet adapter driver in the Linux kernel did not     properly handle certain error conditions. A local attacker with physical access could plug in a specially     crafted USB device to cause a denial of service (memory exhaustion). (CVE-2022-3594)

    It was discovered that a null pointer dereference existed in the NILFS2 file system implementation in the     Linux kernel. A local attacker could use this to cause a denial of service (system crash). (CVE-2022-3621)

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	Name	Product	Family	Published	Updated	Severity
172542	RHEL 9 : kernel-rt (RHSA-2023:1203)	Nessus	Red Hat Local Security Checks	3/14/2023	9/17/2025	high
168631	Ubuntu 18.04 LTS / 20.04 LTS : Linux kernel (Azure) vulnerabilities (USN-5756-3)	Nessus	Ubuntu Local Security Checks	12/12/2022	8/27/2024	high
168635	Ubuntu 22.10 : Linux kernel (Azure) vulnerabilities (USN-5754-2)	Nessus	Ubuntu Local Security Checks	12/12/2022	8/27/2024	high
168636	Ubuntu 18.04 LTS : Linux kernel (Azure) vulnerabilities (USN-5774-1)	Nessus	Ubuntu Local Security Checks	12/12/2022	8/28/2024	high
168732	Ubuntu 20.04 LTS / 22.04 LTS : Linux kernel (Azure) vulnerabilities (USN-5779-1)	Nessus	Ubuntu Local Security Checks	12/14/2022	8/27/2024	high

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