Debian DLA-373-1 : libxml2 security update

high Nessus Plugin ID 87605
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Synopsis

The remote Debian host is missing a security update.

Description

Several vulnerabilities were discovered in libxml2, a library providing support to read, modify and write XML and HTML files. A remote attacker could provide a specially crafted XML or HTML file that, when processed by an application using libxml2, would cause that application to use an excessive amount of CPU, leak potentially sensitive information, or crash the application.

CVE-2015-5312: CPU exhaustion when processing specially crafted XML input. CVE-2015-7497: Heap-based buffer overflow in xmlDictComputeFastQKey. CVE-2015-7498: Heap-based buffer overflow in xmlParseXmlDecl. CVE-2015-7499: Heap-based buffer overflow in xmlGROW.
CVE-2015-7500: Heap buffer overflow in xmlParseMisc.

NOTE: Tenable Network Security has extracted the preceding description block directly from the DLA security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.

Solution

Upgrade the affected packages.

See Also

https://lists.debian.org/debian-lts-announce/2015/12/msg00015.html

https://packages.debian.org/source/squeeze-lts/libxml2

Plugin Details

Severity: High

ID: 87605

File Name: debian_DLA-373.nasl

Version: 2.7

Type: local

Agent: unix

Published: 12/29/2015

Updated: 1/11/2021

Dependencies: ssh_get_info.nasl

Risk Information

VPR

Risk Factor: Medium

Score: 6.1

CVSS v2

Risk Factor: High

Base Score: 7.1

Temporal Score: 5.3

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

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

Vulnerability Information

CPE: p-cpe:/a:debian:debian_linux:libxml2, p-cpe:/a:debian:debian_linux:libxml2-dbg, p-cpe:/a:debian:debian_linux:libxml2-dev, p-cpe:/a:debian:debian_linux:libxml2-doc, p-cpe:/a:debian:debian_linux:libxml2-utils, p-cpe:/a:debian:debian_linux:python-libxml2, p-cpe:/a:debian:debian_linux:python-libxml2-dbg, cpe:/o:debian:debian_linux:6.0

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

Exploit Ease: No known exploits are available

Patch Publication Date: 12/26/2015

Reference Information

CVE: CVE-2015-5312, CVE-2015-7497, CVE-2015-7498, CVE-2015-7499, CVE-2015-7500