The remote Ubuntu 20.04 LTS host has a package installed that is affected by multiple vulnerabilities as referenced in the USN-4411-1 advisory.

    It was discovered that the elf handling code in the Linux kernel did not initialize memory before using it     in certain situations. A local attacker could use this to possibly expose sensitive information (kernel     memory). (CVE-2020-10732)

    Matthew Sheets discovered that the SELinux network label handling implementation in the Linux kernel could     be coerced into de-referencing a NULL pointer. A remote attacker could use this to cause a denial of     service (system crash). (CVE-2020-10711)

    It was discovered that the SCSI generic (sg) driver in the Linux kernel did not properly handle certain     error conditions correctly. A local privileged attacker could use this to cause a denial of service     (system crash). (CVE-2020-12770)

    It was discovered that the USB Gadget device driver in the Linux kernel did not validate arguments passed     from configfs in some situations. A local attacker could possibly use this to cause a denial of service     (system crash) or possibly expose sensitive information. (CVE-2020-13143)

    It was discovered that the KVM implementation in the Linux kernel did not properly deallocate memory on     initialization for some processors. A local attacker could possibly use this to cause a denial of service.
    (CVE-2020-12768)

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-4411-1)

medium Nessus Plugin ID 138136

Version 1.7

Version 1.6

Version 1.6

Version 1.7 Jan 10, 2024, 8:45 AM Detection (updated detection logic) Plugin metadata Plugin Feed: 202401100845
Version 1.6 Jan 9, 2024, 6:56 PM Detection (updated detection logic) Plugin metadata Plugin Feed: 202401091856
Version 1.6 Oct 23, 2023, 6:27 PM CVSSv2 score source (set to "CVE-2020-12770") Detection Exploit attributes ("Exploit available" set to "False") Plugin metadata Plugin Feed: 202310231827