Advisory Published

USN-6183-1: Bind vulnerabilities

First published: Wed Jun 21 2023(Updated: )

Shoham Danino, Anat Bremler-Barr, Yehuda Afek, and Yuval Shavitt discovered that Bind incorrectly handled the cache size limit. A remote attacker could possibly use this issue to consume memory, leading to a denial of service. (CVE-2023-2828) It was discovered that Bind incorrectly handled the recursive-clients quota. A remote attacker could possibly use this issue to cause Bind to crash, resulting in a denial of service. This issue only affected Ubuntu 22.04 LTS, Ubuntu 22.10, and Ubuntu 23.04. (CVE-2023-2911)

Affected SoftwareAffected VersionHow to fix
All of
ubuntu/bind9<1:9.18.12-1ubuntu1.1
1:9.18.12-1ubuntu1.1
=23.04
All of
ubuntu/bind9<1:9.18.12-0ubuntu0.22.10.2
1:9.18.12-0ubuntu0.22.10.2
=22.10
All of
ubuntu/bind9<1:9.18.12-0ubuntu0.22.04.2
1:9.18.12-0ubuntu0.22.04.2
=22.04
All of
ubuntu/bind9<1:9.16.1-0ubuntu2.15
1:9.16.1-0ubuntu2.15
=20.04

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Reference Links

Child vulnerabilities

(Contains the following vulnerabilities)

Frequently Asked Questions

  • What is the vulnerability ID for the Bind vulnerabilities?

    The vulnerability ID for the Bind vulnerabilities is CVE-2023-2828.

  • What is the impact of the Bind vulnerabilities?

    The impact of the Bind vulnerabilities is a possible denial of service due to memory consumption.

  • Which version of Bind is affected by the vulnerabilities?

    The versions of Bind affected by the vulnerabilities are 1:9.18.12-1ubuntu1.1, 1:9.18.12-0ubuntu0.22.10.2, 1:9.18.12-0ubuntu0.22.04.2, and 1:9.16.1-0ubuntu2.15.

  • How can I fix the Bind vulnerabilities?

    To fix the Bind vulnerabilities, update to the following versions: 1:9.18.12-1ubuntu1.1, 1:9.18.12-0ubuntu0.22.10.2, 1:9.18.12-0ubuntu0.22.04.2, or 1:9.16.1-0ubuntu2.15.

  • Where can I find more information about the Bind vulnerabilities?

    You can find more information about the Bind vulnerabilities on the Ubuntu Security Notices website: https://ubuntu.com/security/CVE-2023-2911 and https://ubuntu.com/security/CVE-2023-2828.

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