Ubuntu 10.04 LTS / 12.04 LTS / 14.04 LTS / 14.10 : ntp vulnerabilities (USN-2497-1)

High Nessus Plugin ID 81256


The remote Ubuntu host is missing a security-related patch.


Stephen 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.


Update the affected ntp package.

See Also



Plugin Details

Severity: High

ID: 81256

File Name: ubuntu_USN-2497-1.nasl

Version: 1.15

Type: local

Agent: unix

Published: 2015/02/10

Updated: 2020/09/22

Dependencies: 12634

Risk Information

Risk Factor: High

Temporal Vector: CVSS2#E:U/RL:OF/RC:C

Vulnerability Information

CPE: p-cpe:/a:canonical:ubuntu_linux:ntp, cpe:/o:canonical:ubuntu_linux:10.04:-:lts, cpe:/o:canonical:ubuntu_linux:12.04:-:lts, cpe:/o:canonical:ubuntu_linux:14.04, cpe:/o:canonical:ubuntu_linux:14.10

Required KB Items: Host/cpu, Host/Ubuntu, Host/Ubuntu/release, Host/Debian/dpkg-l

Exploit Available: false

Exploit Ease: No known exploits are available

Patch Publication Date: 2015/02/09

Vulnerability Publication Date: 2015/10/05

Reference Information

CVE: CVE-2014-9297, CVE-2014-9298