GLSA-200812-06 : libxml2: Multiple vulnerabilities

critical Nessus Plugin ID 35023
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VPR Score: 6.7

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-200812-06 (libxml2: Multiple vulnerabilities)

Multiple vulnerabilities were reported in libxml2:
Andreas Solberg reported that libxml2 does not properly detect recursion during entity expansion in an attribute value (CVE-2008-3281).
A heap-based buffer overflow has been reported in the xmlParseAttValueComplex() function in parser.c (CVE-2008-3529).
Christian Weiske reported that predefined entity definitions in entities are not properly handled (CVE-2008-4409).
Drew Yao of Apple Product Security reported an integer overflow in the xmlBufferResize() function that can lead to an infinite loop (CVE-2008-4225).
Drew Yao of Apple Product Security reported an integer overflow in the xmlSAX2Characters() function leading to a memory corruption (CVE-2008-4226).
Impact :

A remote attacker could entice a user or automated system to open a specially crafted XML document with an application using libxml2, possibly resulting in the exeution of arbitrary code or a high CPU and memory consumption.
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/libxml2-2.7.2-r1'

See Also

https://security.gentoo.org/glsa/200812-06

Plugin Details

Severity: Critical

ID: 35023

File Name: gentoo_GLSA-200812-06.nasl

Version: 1.18

Type: local

Published: 12/3/2008

Updated: 1/6/2021

Dependencies: 12634

Risk Information

Risk Factor: Critical

VPR Score: 6.7

CVSS v2.0

Base Score: 10

Temporal Score: 7.8

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

Temporal Vector: E:POC/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 Available: true

Exploit Ease: Exploits are available

Patch Publication Date: 12/2/2008

Reference Information

CVE: CVE-2008-3281, CVE-2008-3529, CVE-2008-4225, CVE-2008-4226, CVE-2008-4409

BID: 30783, 31126, 32326, 32331

GLSA: 200812-06

CWE: 119, 189, 399