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

medium Nessus Plugin ID 65695

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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.

Plugin Details

Severity: Medium

ID: 65695

File Name: debian_DSA-2652.nasl

Version: 1.15

Type: local

Agent: unix

Family: Debian Local Security Checks

Published: 3/27/2013

Updated: 1/11/2021

Supported Sensors: Frictionless Assessment Agent, Nessus Agent, Agentless Assessment, Nessus

Risk Information

VPR

Risk Factor: Medium

Score: 6.7

CVSS v2

Risk Factor: Medium

Base Score: 6.8

Temporal Score: 5

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

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 Ease: No known exploits are available

Patch Publication Date: 3/24/2013

Reference Information

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

BID: 58180

DSA: 2652

Detections

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