full-disclosure-uk August 2008 archive
Main Archive Page > Month Archives  > full-disclosure-uk archives
full-disclosure-uk: [Full-disclosure] [ GLSA 200808-06 ] libxslt

[Full-disclosure] [ GLSA 200808-06 ] libxslt: Execution of arbitrary code

From: Tobias Heinlein <keytoaster_at_nospam>
Date: Wed Aug 06 2008 - 20:18:44 GMT
To: gentoo-announce@gentoo.org

  • - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Gentoo Linux Security Advisory GLSA 200808-06
  • - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - http://security.gentoo.org/
  • - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
Severity: Normal Title: libxslt: Execution of arbitrary code Date: August 06, 2008 Bugs: #232172 ID: 200808-06
  • - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -

Synopsis


libxslt is affected by a heap-based buffer overflow, possibly leading to the execution of arbitrary code.

Background


libxslt is the XSLT C library developed for the GNOME project. XSLT is an XML language to define transformations for XML.

Affected packages



Package / Vulnerable / Unaffected ------------------------------------------------------------------- 1 dev-libs/libxslt < 1.1.24-r1 >= 1.1.24-r1 < 1.1.8

Description


Chris Evans (Google Security) reported that the libexslt library that is part of libxslt is affected by a heap-based buffer overflow in the RC4 encryption/decryption functions.

Impact


A remote attacker could entice a user to process an XML file using a specially crafted XSLT stylesheet in an application linked against libxslt, possibly leading to the execution of arbitrary code with the privileges of the user running the application.

Workaround


There is no known workaround at this time.

Resolution


All libxslt users should upgrade to the latest version:

    # emerge --sync
    # emerge --ask --oneshot --verbose ">=dev-libs/libxslt-1.1.24-r1"

References


  [ 1 ] CVE-2008-2935
        http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2008-2935

Availability


This GLSA and any updates to it are available for viewing at the Gentoo Security Website:

  http://security.gentoo.org/glsa/glsa-200808-06.xml

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 http://bugs.gentoo.org.

License


Copyright 2008 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.

http://creativecommons.org/licenses/by-sa/2.5



Full-Disclosure - We believe in it.
Charter: http://lists.grok.org.uk/full-disclosure-charter.html Hosted and sponsored by Secunia - http://secunia.com/