XnView / NConvert Radiance RGBE Buffer Overflow
Secunia Advisory: SA28326
Release Date: 2008-01-30
Popularity: 3,890 views

Critical:
Highly critical
Impact: System access
Where: From remote
Solution Status: Vendor Patch

Software:NConvert 4.x
XnView 1.x

Binary Analysis: BA348 :: Available for Credits
BA351 :: Available for Credits

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CVE reference:CVE-2008-0064


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/


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