Ubuntu 22.04 LTS / 24.04 LTS / 25.10 / 26.04 LTS : Bind vulnerabilities (USN-8293-1)

The remote Ubuntu 22.04 LTS / 24.04 LTS / 25.10 / 26.04 LTS host has packages installed that are affected by multiple vulnerabilities as referenced in the USN-8293-1 advisory. Vitaly Simonovich discovered that Bind could exhaust memory during GSS-API TKEY negotiation. A remote attacker could...

USN-8293-1: Bind vulnerabilities

Vitaly Simonovich discovered that Bind could exhaust memory during GSS-API TKEY negotiation. A remote attacker could possibly use this issue to cause Bind to use excessive resources, leading to a denial of service. CVE-2026-3039 Shuhan Zhang discovered that Bind incorrectly handled self-pointed...

CVE-2026-5946 Invalid handling of CLASS != IN

Multiple flaws have been identified in named related to the handling of DNS messages whose CLASS is not Internet IN — for example, CHAOS or HESIOD, or DNS messages that specify meta-classes ANY or NONE in the question section. Specially crafted requests reaching the affected code paths — recursio...

UBUNTU-CVE-2017-15120

An issue has been found in the parsing of authoritative answers in PowerDNS Recursor before 4.0.8, leading to a NULL pointer dereference when parsing a specially crafted answer containing a CNAME of a different class than IN. An unauthenticated remote attacker could cause a denial of service...