The remote Ubuntu 20.04 LTS host has packages installed that are affected by multiple vulnerabilities as referenced in the USN-6642-1 advisory.

    Shoham Danino, Anat Bremler-Barr, Yehuda Afek, and Yuval Shavitt discovered that Bind incorrectly handled     parsing large DNS messages. A remote attacker could possibly use this issue to cause Bind to consume     resources, leading to a denial of service. (CVE-2023-4408)

    Elias Heftrig, Haya Schulmann, Niklas Vogel, and Michael Waidner discovered that Bind icorrectly handled     validating DNSSEC messages. A remote attacker could possibly use this issue to cause Bind to consume     resources, leading to a denial of service. (CVE-2023-50387)

    It was discovered that Bind incorrectly handled preparing an NSEC3 closest encloser proof. A remote     attacker could possibly use this issue to cause Bind to consume resources, leading to a denial of service.
    (CVE-2023-50868)

    It was discovered that Bind incorrectly handled reverse zone queries when nxdomain-redirect is enabled. A     remote attacker could possibly use this issue to cause Bind to crash, leading to a denial of service.
    (CVE-2023-5517)

    It was discovered that Bind incorrectly handled certain specific recursive query patterns. A remote     attacker could possibly use this issue to cause Bind to consume memory, leading to a denial of service.
    (CVE-2023-6516)

    Bind has been updated to 9.6.48. In addition to security fixes, the updated packages contain bug fixes,     new features, and possibly incompatible changes.

    Please see the following for more information:
    https://downloads.isc.org/isc/bind9/9.16.48/doc/arm/html/notes.html

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 : Bind vulnerabilities (USN-6642-1)

high Nessus Plugin ID 190715

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) CVSSv2 severity (based on None, severity decreased from "High" to "Low") Detection (updated detection logic) Plugin metadata Plugin Feed: 202408281943
Version 1.1 Jul 26, 2024, 11:33 AM IAVM reference Plugin Feed: 202407261133
Version 1.0 Feb 20, 2024, 12:14 AM New Plugin Feed: 202402200014