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

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

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

TITLE:
XnView / NConvert Radiance RGBE Buffer Overflow

SECUNIA ADVISORY ID:
SA28326

VERIFY ADVISORY:
http://secunia.com/advisories/28326/

CRITICAL:
Highly critical

IMPACT:
System access

WHERE:
>From remote

SOFTWARE:
XnView 1.x
http://secunia.com/product/6705/
NConvert 4.x
http://secunia.com/product/17378/

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

The vulnerability is cause due to a boundary error when reading
Radiance RGBE (*.hdr) files. This can be exploited to cause a
stack-based buffer overflow by e.g. tricking a user into viewing a
specially crafted Radiance RGBE file.

Successful exploitation allows execution of arbitrary code.

The vulnerability is confirmed in XnView versions 1.91 and 1.92 and
NConvert version 4.85. Other versions may also be affected.

SOLUTION:
Update to XnView version 1.92.1 and NConvert 4.86.

XnView:
http://pagesperso-orange.fr/pierre.g/xnview/endownload.html

NConvert:
http://pagesperso-orange.fr/pierre.g/xnview/en_ncdownload.html

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

ORIGINAL ADVISORY:
Secunia Research:
http://secunia.com/secunia_research/2008-1/

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

About:
This Advisory was delivered by Secunia as a free service to help
everybody keeping their systems up to date against the latest
vulnerabilities.

Subscribe:
http://secunia.com/secunia_security_advisories/

Definitions: (Criticality, Where etc.)
http://secunia.com/about_secunia_advisories/


Please Note:
Secunia recommends that you verify all advisories you receive by
clicking the link.
Secunia NEVER sends attached files with advisories.
Secunia does not advise people to install third party patches, only
use those supplied by the vendor.

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