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TITLE:
XnView DICOM Parsing Integer Overflow Vulnerability

SECUNIA ADVISORY ID:
SA37673

VERIFY ADVISORY:
http://secunia.com/advisories/37673/

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

The vulnerability is caused due to an integer overflow when
processing DICOM images with certain dimensions. This can be
exploited to cause a heap-based buffer overflow by e.g. tricking a
user into opening a specially crafted DICOM file.

The vulnerability is confirmed in version 1.96.5 and 1.97. Other
versions may also be affected.

SOLUTION:
Update to version 1.97.2.

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

ORIGINAL ADVISORY:
Secunia:
http://secunia.com/secunia_research/2009-60/

XnView:
http://newsgroup.xnview.com/viewtopic.php?f=35&t=19469

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

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

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

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