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

Ubuntu Security Notice (C) 2013-2014 Canonical, Inc. / NASL script (C) 2013-2014 Tenable Network Security, Inc.


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).

Solution :

Update the affected libxml2 package.

Risk factor :

Medium / CVSS Base Score : 6.8
(CVSS2#AV:N/AC:M/Au:N/C:P/I:P/A:P)
CVSS Temporal Score : 5.9
(CVSS2#E:ND/RL:OF/RC:C)
Public Exploit Available : false

Family: Ubuntu Local Security Checks

Nessus Plugin ID: 68957 ()

Bugtraq ID: 59000
61050

CVE ID: CVE-2013-0339
CVE-2013-2877