Ubuntu 10.04 LTS / 12.04 LTS / 14.04 LTS / 14.10 : ntp vulnerabilities (USN-2497-1)
Medium Nessus Plugin ID 81256
SynopsisThe remote Ubuntu host is missing a security-related patch.
DescriptionStephen Roettger, Sebastian Krahmer, and Harlan Stenn discovered that NTP incorrectly handled the length value in extension fields. A remote attacker could use this issue to possibly obtain leaked information, or cause the NTP daemon to crash, resulting in a denial of service.
Stephen Roettger discovered that NTP incorrectly handled ACLs based on certain IPv6 addresses. (CVE-2014-9298).
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 ntp package.