Ubuntu 6.06 LTS / 7.10 / 8.04 LTS / 8.10 : libxml2 vulnerabilities (USN-673-1)

Critical Nessus Plugin ID 36916

Synopsis

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

Description

Drew Yao discovered that libxml2 did not correctly handle certain corrupt XML documents. If a user or automated system were tricked into processing a malicious XML document, a remote attacker could cause applications linked against libxml2 to enter an infinite loop, leading to a denial of service. (CVE-2008-4225)

Drew Yao discovered that libxml2 did not correctly handle large memory allocations. If a user or automated system were tricked into processing a very large XML document, a remote attacker could cause applications linked against libxml2 to crash, leading to a denial of service. (CVE-2008-4226).

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.

See Also

https://usn.ubuntu.com/673-1/

Plugin Details

Severity: Critical

ID: 36916

File Name: ubuntu_USN-673-1.nasl

Version: 1.14

Type: local

Agent: unix

Published: 2009/04/23

Updated: 2018/11/23

Dependencies: 12634

Risk Information

Risk Factor: Critical

CVSS v2.0

Base Score: 10

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

Vulnerability Information

CPE: p-cpe:/a:canonical:ubuntu_linux:libxml2, p-cpe:/a:canonical:ubuntu_linux:libxml2-dbg, p-cpe:/a:canonical:ubuntu_linux:libxml2-dev, p-cpe:/a:canonical:ubuntu_linux:libxml2-doc, p-cpe:/a:canonical:ubuntu_linux:libxml2-utils, p-cpe:/a:canonical:ubuntu_linux:python-libxml2, p-cpe:/a:canonical:ubuntu_linux:python-libxml2-dbg, p-cpe:/a:canonical:ubuntu_linux:python2.4-libxml2, cpe:/o:canonical:ubuntu_linux:6.06:-:lts, cpe:/o:canonical:ubuntu_linux:7.10, cpe:/o:canonical:ubuntu_linux:8.04:-:lts, cpe:/o:canonical:ubuntu_linux:8.10

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

Patch Publication Date: 2008/11/18

Reference Information

CVE: CVE-2008-4225, CVE-2008-4226

USN: 673-1

CWE: 189, 399