Debian DSA-2652-1 : libxml2 - external entity expansion

Medium Nessus Plugin ID 65695

Synopsis

The remote Debian host is missing a security-related update.

Description

Brad Hill of iSEC Partners discovered that many XML implementations are vulnerable to external entity expansion issues, which can be used for various purposes such as firewall circumvention, disguising an IP address, and denial-of-service. libxml2 was susceptible to these problems when performing string substitution during entity expansion.

Solution

Upgrade the libxml2 packages.

For the stable distribution (squeeze), these problems have been fixed in version 2.7.8.dfsg-2+squeeze7.

See Also

https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=702260

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

https://www.debian.org/security/2013/dsa-2652

Plugin Details

Severity: Medium

ID: 65695

File Name: debian_DSA-2652.nasl

Version: 1.13

Type: local

Agent: unix

Published: 2013/03/27

Updated: 2018/11/10

Dependencies: 12634

Risk Information

Risk Factor: Medium

CVSS v2.0

Base Score: 6.8

Temporal Score: 5

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

Temporal Vector: CVSS2#E:U/RL:OF/RC:C

Vulnerability Information

CPE: p-cpe:/a:debian:debian_linux:libxml2, cpe:/o:debian:debian_linux:6.0

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

Exploit Available: false

Exploit Ease: No known exploits are available

Patch Publication Date: 2013/03/24

Reference Information

CVE: CVE-2013-0338, CVE-2013-0339

BID: 58180

DSA: 2652