The remote Ubuntu 18.04 ESM / 20.04 LTS host has a package installed that is affected by multiple vulnerabilities as referenced in the USN-6340-2 advisory.

    Ruihan Li discovered that the bluetooth subsystem in the Linux kernel did not properly perform permissions     checks when handling HCI sockets. A physically proximate attacker could use this to cause a denial of     service (bluetooth communication). (CVE-2023-2002)

    Zi Fan Tan discovered that the binder IPC 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-2023-21255)

    Juan Jose Lopez Jaimez, Meador Inge, Simon Scannell, and Nenad Stojanovski discovered that the BPF     verifier in the Linux kernel did not properly mark registers for precision tracking in certain situations,     leading to an out- of-bounds access vulnerability. A local attacker could use this to cause a denial of     service (system crash) or possibly execute arbitrary code. (CVE-2023-2163)

    Zheng Zhang discovered that the device-mapper implementation in the Linux kernel did not properly handle     locking during table_clear() operations. A local attacker could use this to cause a denial of service     (kernel deadlock). (CVE-2023-2269)

    It was discovered that the DVB Core driver in the Linux kernel did not properly handle locking events in     certain situations. A local attacker could use this to cause a denial of service (kernel deadlock).
    (CVE-2023-31084)

    It was discovered that the kernel->user space relay implementation in the Linux kernel did not properly     perform certain buffer calculations, leading to an out-of-bounds read vulnerability. A local attacker     could use this to cause a denial of service (system crash) or expose sensitive information (kernel     memory). (CVE-2023-3268)

    It was discovered that the video4linux driver for Philips based TV cards in the Linux kernel contained a     race condition during device removal, leading to a use-after-free vulnerability. A physically proximate     attacker could use this to cause a denial of service (system crash) or possibly execute arbitrary code.
    (CVE-2023-35823)

    It was discovered that the SDMC DM1105 PCI device driver in the Linux kernel contained a race condition     during device removal, leading to a use- after-free vulnerability. A physically proximate attacker could     use this to cause a denial of service (system crash) or possibly execute arbitrary code. (CVE-2023-35824)

    It was discovered that the Renesas USB controller driver in the Linux kernel contained a race condition     during device removal, leading to a use- after-free vulnerability. A privileged attacker could use this to     cause a denial of service (system crash) or possibly execute arbitrary code. (CVE-2023-35828)

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.

Detections

Analytics

Ubuntu 18.04 ESM / 20.04 LTS : Linux kernel vulnerabilities (USN-6340-2)

critical Nessus Plugin ID 181185

Version 1.4

Version 1.3

Version 1.2

Version 1.1

Version 1.1

Version 1.0

Version 1.4 Sep 18, 2024, 8:52 AM CVSS metrics ("Cvssv4 threat vector" set to "CVSS:4.0/E:P") Plugin Feed: 202409180852
Version 1.3 Aug 28, 2024, 7:43 PM CVSS metrics ("Cvssv4 score" set to 9.3) CVSS metrics ("Cvssv4 vector" set to "CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H") Detection (updated detection logic) Plugin metadata Plugin Feed: 202408281943
Version 1.2 Jan 10, 2024, 8:45 AM Detection (updated detection logic) Plugin metadata Plugin Feed: 202401100845
Version 1.1 Sep 25, 2023, 2:20 PM CVSS metrics ("CVSSv3 score" changed from 7.8 to 8.8. "CVSSv3 vector" changed from "CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H" to "CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H") CVSSv2 score source (changed from "CVE-2023-21255" to "CVE-2023-2163") CVSSv3 score source (set to "CVE-2023-2163") Plugin Feed: 202309251420
Version 1.1 Jan 9, 2024, 6:56 PM Detection (updated detection logic) Plugin metadata Plugin Feed: 202401091856
Version 1.0 Sep 9, 2023, 2:07 AM New Plugin Feed: 202309090207