Ubuntu 12.04 LTS / 14.04 LTS / 16.04 LTS / 16.10 / 17.04 : bind9 vulnerabilities (USN-3259-1)
Medium Nessus Plugin ID 99435
SynopsisThe remote Ubuntu host is missing a security-related patch.
DescriptionIt was discovered that the resolver in Bind made incorrect assumptions about ordering when processing responses containing a CNAME or DNAME.
An attacker could use this cause a denial of service. (CVE-2017-3137)
Oleg Gorokhov discovered that in some situations, Bind did not properly handle DNS64 queries. An attacker could use this to cause a denial of service. (CVE-2017-3136)
Mike Lalumiere discovered that in some situations, Bind did not properly handle invalid operations requested via its control channel.
An attacker with access to the control channel could cause a denial of service. (CVE-2017-3138).
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.