Advisory Published

USN-6723-1: Bind vulnerabilities

First published: Tue Apr 09 2024(Updated: )

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)

Affected SoftwareAffected VersionHow to fix
All of
ubuntu/bind9<1:9.11.3+dfsg-1ubuntu1.19+esm3
1:9.11.3+dfsg-1ubuntu1.19+esm3
Ubuntu Ubuntu=18.04
All of
ubuntu/bind9<1:9.10.3.dfsg.P4-8ubuntu1.19+esm8
1:9.10.3.dfsg.P4-8ubuntu1.19+esm8
Ubuntu Ubuntu=16.04
All of
ubuntu/bind9<1:9.9.5.dfsg-3ubuntu0.19+esm12
1:9.9.5.dfsg-3ubuntu0.19+esm12
Ubuntu Ubuntu=14.04

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