Ubuntu 12.04 LTS / 14.04 LTS / 15.04 / 15.10 : libxml2 vulnerabilities (USN-2812-1)

medium Nessus Plugin ID 86897
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Synopsis

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

Description

Florian Weimer discovered that libxml2 incorrectly handled certain XML data. If a user or automated system were tricked into opening a specially crafted document, an attacker could possibly cause resource consumption, resulting in a denial of service. This issue only affected Ubuntu 12.04 LTS, Ubuntu 14.04 LTS and Ubuntu 15.04.
(CVE-2015-1819)

Michal Zalewski discovered that libxml2 incorrectly handled certain XML data. 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. This issue only affected Ubuntu 12.04 LTS, Ubuntu 14.04 LTS and Ubuntu 15.04. (CVE-2015-7941)

Kostya Serebryany discovered that libxml2 incorrectly handled certain XML data. 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, or possibly execute arbitrary code. (CVE-2015-7942)

Gustavo Grieco discovered that libxml2 incorrectly handled certain XML data. 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. This issue only affected Ubuntu 14.04 LTS. (CVE-2015-8035).

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/2812-1/

Plugin Details

Severity: Medium

ID: 86897

File Name: ubuntu_USN-2812-1.nasl

Version: 2.12

Type: local

Agent: unix

Published: 11/17/2015

Updated: 1/19/2021

Dependencies: ssh_get_info.nasl

Risk Information

VPR

Risk Factor: Medium

Score: 5.9

CVSS v2

Risk Factor: Medium

Base Score: 6.8

Temporal Score: 5

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

Temporal Vector: E:U/RL:OF/RC:C

Vulnerability Information

CPE: p-cpe:/a:canonical:ubuntu_linux:libxml2, cpe:/o:canonical:ubuntu_linux:12.04:-:lts, cpe:/o:canonical:ubuntu_linux:14.04, cpe:/o:canonical:ubuntu_linux:15.04, cpe:/o:canonical:ubuntu_linux:15.10

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

Exploit Ease: No known exploits are available

Patch Publication Date: 11/16/2015

Vulnerability Publication Date: 8/14/2015

Reference Information

CVE: CVE-2015-1819, CVE-2015-7941, CVE-2015-7942, CVE-2015-8035

USN: 2812-1