USN-8124-1: Bind vulnerabilities

Samy Medjahed discovered that Bind incorrectly handled insecure delegation validation. A remote attacker could possibly use this issue to cause excessive NSEC3 iterations, consuming CPU resources, and leading to a denial of service. ( CVE-2026-1519 ) Vitaly Simonovich discovered that Bind incorrectly handled memory when preparing DNSSEC proofs of non-existence. A remote attacker could possibly use this issue to cause memory consumption, leading to a denial of service. This issue only affected Ubuntu 25.10. ( CVE-2026-3104 ) Vitaly Simonovich discovered that Bind incorrectly handled authenticated queries containing TKEY records. A remote attacker could possibly use this issue to cause Bind to crash, resulting in a denial of service. This issue only affected Ubuntu 25.10. ( CVE-2026-3119 ) It was discovered that Bind...

Samy Medjahed discovered that Bind incorrectly handled insecure delegation validation. A remote attacker could possibly use this issue to cause excessive NSEC3 iterations, consuming CPU resources, and leading to a denial of service. ( CVE-2026-1519 )

Vitaly Simonovich discovered that Bind incorrectly handled memory when preparing DNSSEC proofs of non-existence. A remote attacker could possibly use this issue to cause memory consumption, leading to a denial of service. This issue only affected Ubuntu 25.10. ( CVE-2026-3104 )

Vitaly Simonovich discovered that Bind incorrectly handled authenticated queries containing TKEY records. A remote attacker could possibly use this issue to cause Bind to crash, resulting in a denial of service. This issue only affected Ubuntu 25.10. ( CVE-2026-3119 )

It was discovered that Bind...

Samy Medjahed discovered that Bind incorrectly handled insecure delegation validation. A remote attacker could possibly use this issue to cause excessive NSEC3 iterations, consuming CPU resources, and leading to a denial of service. ( CVE-2026-1519 ) Vitaly Simonovich discovered that Bind incorrectly handled memory when preparing DNSSEC proofs of non-existence. A remote attacker could possibly use this issue to cause memory consumption, leading to a denial of service. This issue only affected Ubuntu 25.10. ( CVE-2026-3104 ) Vitaly Simonovich discovered that Bind incorrectly handled authenticated queries containing TKEY records. A remote attacker could possibly use this issue to cause Bind to crash, resulting in a denial of service. This issue only affected Ubuntu 25.10. ( CVE-2026-3119 ) It was discovered that Bind incorrectly handled DNS queries signed with SIG(0). A remote attacker could possibly use this issue to bypass ACLs. This issue only affected Ubuntu 25.10. ( CVE-2026-3591 )

Samy Medjahed discovered that Bind incorrectly handled insecure delegation validation. A remote attacker could possibly use this issue to cause excessive NSEC3 iterations, consuming CPU resources, and leading to a denial of service. ( CVE-2026-1519 )

Vitaly Simonovich discovered that Bind incorrectly handled memory when preparing DNSSEC proofs of non-existence. A remote attacker could possibly use this issue to cause memory consumption, leading to a denial of service. This issue only affected Ubuntu 25.10. ( CVE-2026-3104 )

Vitaly Simonovich discovered that Bind incorrectly handled authenticated queries containing TKEY records. A remote attacker could possibly use this issue to cause Bind to crash, resulting in a denial of service. This issue only affected Ubuntu 25.10. ( CVE-2026-3119 )

It was discovered that Bind incorrectly handled DNS queries signed with SIG(0). A remote attacker could possibly use this issue to bypass ACLs. This issue only affected Ubuntu 25.10. ( CVE-2026-3591 )

In general, a standard system update will make all the necessary changes.

The problem can be corrected by updating your system to the following package versions:

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