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A new version (0.9.0.0 - Release Candidate 1) of the free Secunia PSI
has been released. The new version includes many new and advanced
features, which makes it even easier to stay patched.

Download and test it today:
https://psi.secunia.com/

Read more about this new version:
https://psi.secunia.com/?page=changelog

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TITLE:
XnView Slideshow "FontName" Buffer Overflow Vulnerability

SECUNIA ADVISORY ID:
SA29620

VERIFY ADVISORY:
http://secunia.com/advisories/29620/

CRITICAL:
Highly critical

IMPACT:
System access

WHERE:
>From remote

SOFTWARE:
XnView 1.x
http://secunia.com/product/6705/

DESCRIPTION:
Secunia Research has discovered a vulnerability in XnView, which can
be exploited by malicious people to compromise a user's system.

The vulnerability is caused due to a boundary error when processing
the "FontName" parameter of slideshow files (*.sld). This can be
exploited to cause a stack-based buffer overflow by e.g. tricking a
user into opening a specially crafted slideshow file with an overly
long "FontName" parameter.

Successful exploitation allows the execution of arbitrary code.

The vulnerability is confirmed in version 1.92 and 1.92.1. Other
versions may also be affected.

SOLUTION:
Update to version 1.93.4.
http://pagesperso-orange.fr/pierre.g/xnview/endownload.html

PROVIDED AND/OR DISCOVERED BY:
Stefan Cornelius, Secunia Research.

ORIGINAL ADVISORY:
http://secunia.com/secunia_research/2008-06/

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About:
This Advisory was delivered by Secunia as a free service to help
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