Ubuntu 12.04 LTS / 14.04 LTS / 15.10 : eglibc, glibc vulnerability (USN-2900-1)

Critical Nessus Plugin ID 88806

Synopsis

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

Description

It was discovered that the GNU C Library incorrectly handled receiving responses while performing DNS resolution. A remote attacker could use this issue to cause the GNU C Library to crash, resulting in a denial of service, or possibly execute arbitrary code.

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.

Solution

Update the affected libc6 package.

See Also

https://usn.ubuntu.com/2900-1/

https://www.tenable.com/security/research/tra-2017-08

Plugin Details

Severity: Critical

ID: 88806

File Name: ubuntu_USN-2900-1.nasl

Version: 2.25

Type: local

Agent: unix

Published: 2016/02/17

Updated: 2018/12/01

Dependencies: 12634

Risk Information

Risk Factor: Critical

CVSS v2.0

Base Score: 10

Temporal Score: 7.8

Vector: CVSS2#AV:N/AC:L/Au:N/C:C/I:C/A:C

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

CVSS v3.0

Base Score: 8.1

Temporal Score: 7.3

Vector: CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H

Temporal Vector: CVSS:3.0/E:P/RL:O/RC:C

Vulnerability Information

CPE: p-cpe:/a:canonical:ubuntu_linux:libc6, cpe:/o:canonical:ubuntu_linux:12.04:-:lts, cpe:/o:canonical:ubuntu_linux:14.04, cpe:/o:canonical:ubuntu_linux:15.10

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

Exploit Available: true

Exploit Ease: Exploits are available

Patch Publication Date: 2016/02/16

Reference Information

CVE: CVE-2015-7547

TRA: TRA-2017-08

USN: 2900-1

IAVA: 2016-A-0053