GLSA-200801-20 : libxml2: Denial of Service

medium Nessus Plugin ID 30137
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VPR Score: 3.6

Synopsis

The remote Gentoo host is missing one or more security-related patches.

Description

The remote host is affected by the vulnerability described in GLSA-200801-20 (libxml2: Denial of Service)

Brad Fitzpatrick reported that the xmlCurrentChar() function does not properly handle some UTF-8 multibyte encodings.
Impact :

A remote attacker could entice a user to open a specially crafted XML document with an application using libxml2, possibly resulting in a high CPU consumption. Note that this vulnerability could also be triggered without user interaction by an automated system processing XML content.
Workaround :

There is no known workaround at this time.

Solution

All libxml2 users should upgrade to the latest version:
# emerge --sync # emerge --ask --oneshot --verbose '>=dev-libs/libxml2-2.6.30-r1'

See Also

https://security.gentoo.org/glsa/200801-20

Plugin Details

Severity: Medium

ID: 30137

File Name: gentoo_GLSA-200801-20.nasl

Version: 1.15

Type: local

Published: 2/1/2008

Updated: 1/6/2021

Dependencies: ssh_get_info.nasl

Risk Information

Risk Factor: Medium

VPR Score: 3.6

CVSS v2.0

Base Score: 5

Temporal Score: 3.7

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

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

Vulnerability Information

CPE: p-cpe:/a:gentoo:linux:libxml2, cpe:/o:gentoo:linux

Required KB Items: Host/local_checks_enabled, Host/Gentoo/release, Host/Gentoo/qpkg-list

Exploit Ease: No known exploits are available

Patch Publication Date: 1/30/2008

Reference Information

CVE: CVE-2007-6284

GLSA: 200801-20

CWE: 399