[gentoo-announce] [ GLSA 200808-06 ] libxslt: Execution of arbitrary code

[news 28]

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Gentoo Linux Security Advisory GLSA 200808-06

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http://security.gentoo.org/

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Severity: Normal

Title: libxslt: Execution of arbitrary code

Date: August 06, 2008

Bugs: #232172

ID: 200808-06

 

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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 ( -at -) 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