Ubuntu 6.06 LTS / 7.04 / 7.10 / 8.04 LTS : libxml2 vulnerabilities (USN-644-1)

Ubuntu Security Notice (C) 2008-2016 Canonical, Inc. / NASL script (C) 2009-2016 Tenable Network Security, Inc.


Synopsis :

The remote Ubuntu host is missing one or more security-related
patches.

Description :

It was discovered that libxml2 did not correctly handle long entity
names. If a user were tricked into processing a specially crafted XML
document, a remote attacker could execute arbitrary code with user
privileges or cause the application linked against libxml2 to crash,
leading to a denial of service. (CVE-2008-3529)

USN-640-1 fixed vulnerabilities in libxml2. When processing extremely
large XML documents with valid entities, it was possible to
incorrectly trigger the newly added vulnerability protections. This
update fixes the problem. (CVE-2008-3281).

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 packages.

Risk factor :

Critical / CVSS Base Score : 10.0
(CVSS2#AV:N/AC:L/Au:N/C:C/I:C/A:C)
CVSS Temporal Score : 8.7
(CVSS2#E:ND/RL:OF/RC:C)
Public Exploit Available : false

Family: Ubuntu Local Security Checks

Nessus Plugin ID: 37936 ()

Bugtraq ID: 30783

CVE ID: CVE-2008-3281
CVE-2008-3529

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