Ubuntu 14.04 LTS / 16.04 LTS / 18.04 LTS / 18.10 : bind9 vulnerabilities (USN-3893-1)
High Nessus Plugin ID 122399
SynopsisThe remote Ubuntu host is missing a security-related patch.
DescriptionToshifumi Sakaguchi discovered that Bind incorrectly handled memory. A remote attacker could possibly use this issue to cause Bind to consume resources, leading to a denial of service. This issue only affected Ubuntu 18.04 LTS and Ubuntu 18.10. (CVE-2018-5744)
It was discovered that Bind incorrectly handled certain trust anchors when used with the 'managed-keys' feature. A remote attacker could possibly use this issue to cause Bind to crash, resulting in a denial of service. (CVE-2018-5745)
It was discovered that Bind incorrectly handled certain controls for zone transfers, contrary to expectations. (CVE-2019-6465).
Note that Tenable Network Security has extracted the preceding description block directly from the Ubuntu security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.
SolutionUpdate the affected bind9 package.