[gentoo-announce] [ GLSA 200804-18 ] Poppler: User-assisted execution of arbitrary code

[news 28]

- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -

Gentoo Linux Security Advisory GLSA 200804-18:02

- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -

http://security.gentoo.org/

- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -

 

Severity: Normal

Title: Poppler: User-assisted execution of arbitrary code

Date: April 17, 2008

Updated: April 17, 2008

Bugs: #216850

ID: 200804-18:02

 

- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -

 

Synopsis

========

 

Poppler does not handle fonts inside PDF files safely, allowing for

execution of arbitrary code.

 

Background

==========

 

Poppler is a cross-platform PDF rendering library originally based on

Xpdf.

 

Affected packages

=================

 

-------------------------------------------------------------------

Package / Vulnerable / Unaffected

-------------------------------------------------------------------

1 app-text/poppler < 0.6.3 >= 0.6.3

 

Description

===========

 

Kees Cook from the Ubuntu Security Team reported that the

CairoFont::create() function in the file CairoFontEngine.cc does not

verify the type of an embedded font object inside a PDF file before

dereferencing a function pointer from it.

 

Impact

======

 

A remote attacker could entice a user to open a specially crafted PDF

file with a Poppler-based PDF viewer such as Gentoo's Xpdf, Epdfview,

or Evince, potentially resulting in 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 Poppler users should upgrade to the latest version:

 

# emerge --sync

# emerge --ask --oneshot --verbose ">=app-text/poppler-0.6.3"

 

References

==========

 

[ 1 ] CVE-2008-1693

http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2008-1693

 

Availability

============

 

This GLSA and any updates to it are available for viewing at

the Gentoo Security Website:

 

http://security.gentoo.org/glsa/glsa-200804-18.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