The remote Ubuntu 20.04 LTS host has a package installed that is affected by multiple vulnerabilities as referenced in the USN-6339-2 advisory.

    It was discovered that the NTFS file system implementation in the Linux kernel did not properly validate     MFT flags in certain situations. An attacker could use this to construct a malicious NTFS image that, when     mounted and operated on, could cause a denial of service (system crash). (CVE-2022-48425)

    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)

    It was discovered that a race condition existed in the f2fs file system in the Linux kernel, leading to a     null pointer dereference vulnerability. An attacker could use this to construct a malicious f2fs image     that, when mounted and operated on, could cause a denial of service (system crash). (CVE-2023-2898)

    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)

    Yang Lan discovered that the GFS2 file system implementation in the Linux kernel could attempt to     dereference a null pointer in some situations. An attacker could use this to construct a malicious GFS2     image that, when mounted and operated on, could cause a denial of service (system crash). (CVE-2023-3212)

    It was discovered that the KSMBD implementation in the Linux kernel did not properly validate buffer sizes     in certain operations, leading to an out-of- bounds read vulnerability. A remote attacker could use this     to cause a denial of service (system crash) or possibly expose sensitive information. (CVE-2023-38426,     CVE-2023-38428)

    It was discovered that the KSMBD implementation in the Linux kernel did not properly calculate the size of     certain buffers. A remote attacker could use this to cause a denial of service (system crash) or possibly     execute arbitrary code. (CVE-2023-38429)

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 20.04 LTS : Linux kernel vulnerabilities (USN-6339-2)

critical Nessus Plugin ID 181184

Version 1.2

Version 1.1

Version 1.0

Version 1.2 Aug 28, 2024, 7:43 PM CVSS metrics ("Cvssv4 score" set to 0.0) CVSS temporal metrics ("CVSSv2 temporal vector" set to "CVSS2#E:U/RL:OF/RC:C") CVSS temporal metrics ("CVSSv3 temporal vector" set to "CVSS:3.0/E:U/RL:O/RC:C") CVSSv2 severity (based on None, severity decreased from "High" to "Low") Detection (updated detection logic) Plugin metadata Plugin Feed: 202408281943
Version 1.1 Jan 10, 2024, 8:45 AM Detection (updated detection logic) Plugin Feed: 202401100845
Version 1.0 Sep 9, 2023, 2:07 AM New Plugin Feed: 202309090207