GLSA 200801-20: libxml2: Denial of Service
| Severity: | normal |
| Title: | libxml2: Denial of Service |
| Date: | 01/30/2008 |
| Bugs: | |
| ID: | 200801-20 |
Synopsis
A Denial of Service vulnerability has been reported in libxml2.Background
libxml2 is the XML (eXtended Markup Language) C parser and toolkit initially developed for the Gnome project.
Affected packages
| Package | Vulnerable | Unaffected | Architecture(s) |
|---|---|---|---|
| dev-libs/libxml2 | < 2.6.30-r1 | >= 2.6.30-r1 | All supported architectures |
Description
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.
Resolution
All libxml2 users should upgrade to the latest version:
# emerge --sync
# emerge --ask --oneshot --verbose ">=dev-libs/libxml2-2.6.30-r1"
References
Availability
This GLSA and any updates to it are available for viewing at the Gentoo Security Website:
Concerns?
Security is a primary focus of Gentoo Linux and ensuring the confidentiality and security of our users machines is of utmost importance to us. Any security concerns should be addressed to security@gentoo.org or alternatively, you may file a bug at https://bugs.gentoo.org.
License
Copyright 2010 Gentoo Foundation, Inc; referenced text belongs to its owner(s). The contents of this document are licensed under the Creative Commons - Attribution / Share Alike license.