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

Medium Nessus Plugin ID 68957

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VPR Score: 5.9

Synopsis

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

Description

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.
(CVE-2013-0339)

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.

Solution

Update the affected libxml2 package.

See Also

https://usn.ubuntu.com/1904-2/

Plugin Details

Severity: Medium

ID: 68957

File Name: ubuntu_USN-1904-2.nasl

Version: 1.14

Type: local

Agent: unix

Published: 2013/07/18

Updated: 2019/09/19

Dependencies: 12634

Risk Information

Risk Factor: Medium

VPR Score: 5.9

CVSS v2.0

Base Score: 6.8

Temporal Score: 5.9

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

Temporal Vector: CVSS2#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 Available: false

Exploit Ease: No known exploits are available

Patch Publication Date: 2013/07/17

Vulnerability Publication Date: 2013/07/10

Reference Information

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

BID: 59000, 61050

USN: 1904-2