Ubuntu 10.04 LTS / 12.04 LTS / 12.10 / 13.04 : libxml2 regression (USN-1904-2)

medium Nessus Plugin ID 68957


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


USN-1904-1 fixed vulnerabilities in libxml2. The update caused a regression for certain users. This update fixes the problem.

We apologize for the inconvenience.

It was discovered that libxml2 would load XML external entities by default. If a user or automated system were tricked into opening a specially crafted document, an attacker could possibly obtain access to arbitrary files or cause resource consumption. This issue only affected Ubuntu 10.04 LTS, Ubuntu 12.04 LTS, and Ubuntu 12.10.

It was discovered that libxml2 incorrectly handled documents that end abruptly. If a user or automated system were tricked into opening a specially crafted document, an attacker could possibly cause libxml2 to crash, resulting in a denial of service. (CVE-2013-2877).

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 libxml2 package.

See Also


Plugin Details

Severity: Medium

ID: 68957

File Name: ubuntu_USN-1904-2.nasl

Version: 1.14

Type: local

Agent: unix

Published: 7/18/2013

Updated: 9/19/2019

Supported Sensors: Frictionless Assessment Agent, Frictionless Assessment AWS, Frictionless Assessment Azure, Nessus Agent

Risk Information


Risk Factor: Medium

Score: 5.9


Risk Factor: Medium

Base Score: 6.8

Temporal Score: 5.9

Vector: AV:N/AC:M/Au:N/C:P/I:P/A:P

Temporal Vector: E:ND/RL:OF/RC:C

Vulnerability Information

CPE: p-cpe:/a:canonical:ubuntu_linux:libxml2, cpe:/o:canonical:ubuntu_linux:10.04:-:lts, cpe:/o:canonical:ubuntu_linux:12.04:-:lts, cpe:/o:canonical:ubuntu_linux:12.10, cpe:/o:canonical:ubuntu_linux:13.04

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

Exploit Ease: No known exploits are available

Patch Publication Date: 7/17/2013

Vulnerability Publication Date: 7/10/2013

Reference Information

CVE: CVE-2013-0339, CVE-2013-2877

BID: 59000, 61050

USN: 1904-2