GLSA-201009-07 : libxml2: Denial of Service

Medium Nessus Plugin ID 49636


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


The remote host is affected by the vulnerability described in GLSA-201009-07 (libxml2: Denial of Service)

The following vulnerabilities were reported after a test with the Codenomicon XML fuzzing framework:
Two use-after-free vulnerabilities are possible when parsing a XML file with Notation or Enumeration attribute types (CVE-2009-2416).
A stack consumption vulnerability can be triggered via a large depth of element declarations in a DTD, related to a function recursion (CVE-2009-2414).
Impact :

A remote attacker could entice a user or automated system to open a specially crafted XML document with an application using libxml2 resulting in a Denial of Service condition.
Workaround :

There is no known workaround at this time.


All libxml2 users should upgrade to the latest version:
# emerge --sync # emerge --ask --oneshot --verbose '>=dev-libs/libxml2-2.7.3-r2' NOTE: This is a legacy GLSA. Updates for all affected architectures are available since August 30, 2009. It is likely that your system is already no longer affected by this issue.

See Also

Plugin Details

Severity: Medium

ID: 49636

File Name: gentoo_GLSA-201009-07.nasl

Version: $Revision: 1.18 $

Type: local

Published: 2010/09/22

Modified: 2016/11/11

Dependencies: 12634

Risk Information

Risk Factor: Medium


Base Score: 4.3

Temporal Score: 3.7

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

Temporal Vector: CVSS2#E:ND/RL:OF/RC:ND

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: false

Exploit Ease: No known exploits are available

Patch Publication Date: 2010/09/21

Reference Information

CVE: CVE-2009-2414, CVE-2009-2416

BID: 36010

OSVDB: 56985, 56990

GLSA: 201009-07

CWE: 119, 399