Ubuntu 8.04 LTS / 10.04 LTS / 10.10 / 11.04 / 11.10 : libxml2 vulnerabilities (USN-1334-1)

high Nessus Plugin ID 57615
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Synopsis

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

Description

It was discovered that libxml2 contained an off by one error. If a user or application linked against libxml2 were tricked into opening a specially crafted XML file, an attacker could cause the application to crash or possibly execute arbitrary code with the privileges of the user invoking the program. (CVE-2011-0216)

It was discovered that libxml2 is vulnerable to double-free conditions when parsing certain XML documents. This could allow a remote attacker to cause a denial of service. (CVE-2011-2821, CVE-2011-2834)

It was discovered that libxml2 did not properly detect end of file when parsing certain XML documents. An attacker could exploit this to crash applications linked against libxml2. (CVE-2011-3905)

It was discovered that libxml2 did not properly decode entity references with long names. If a user or application linked against libxml2 were tricked into opening a specially crafted XML file, an attacker could cause the application to crash or possibly execute arbitrary code with the privileges of the user invoking the program.
(CVE-2011-3919).

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/1334-1/

Plugin Details

Severity: High

ID: 57615

File Name: ubuntu_USN-1334-1.nasl

Version: 1.11

Type: local

Agent: unix

Published: 1/20/2012

Updated: 9/19/2019

Dependencies: ssh_get_info.nasl

Risk Information

VPR

Risk Factor: Medium

Score: 6.7

CVSS v2

Risk Factor: High

Base Score: 9.3

Temporal Score: 6.9

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

Temporal Vector: E:U/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:10.10, cpe:/o:canonical:ubuntu_linux:11.04, cpe:/o:canonical:ubuntu_linux:11.10, cpe:/o:canonical:ubuntu_linux:8.04:-:lts

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

Exploit Ease: No known exploits are available

Patch Publication Date: 1/19/2012

Vulnerability Publication Date: 7/21/2011

Reference Information

CVE: CVE-2011-0216, CVE-2011-2821, CVE-2011-2834, CVE-2011-3905, CVE-2011-3919

BID: 48832, 49279, 49658, 51084, 51300

USN: 1334-1