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TITLE:
Gimp PSD Plugin Integer Overflow Vulnerability

SECUNIA ADVISORY ID:
SA25677

VERIFY ADVISORY:
http://secunia.com/advisories/25677/

CRITICAL:
Moderately critical

IMPACT:
System access

WHERE:
>From remote

SOFTWARE:
GIMP 2.x
http://secunia.com/product/2922/
GIMP 1.x
http://secunia.com/product/2921/

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

The vulnerability is caused due to an integer overflow within the
function "seek_to_and_unpack_pixeldata()" in plug-ins/common/psd.c.
This can be exploited to cause a heap-based buffer overflow by
tricking a user into opening a specially crafted PSD file with large
width or height values.

Successful exploitation allows execution of arbitrary code.

The vulnerability is confirmed in version 2.2.15. Other versions may
also be affected.

SOLUTION:
Fixed in the SVN repository.

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

ORIGINAL ADVISORY:
Secunia Research:
http://secunia.com/secunia_research/2007-63/

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About:
This Advisory was delivered by Secunia as a free service to help
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use those supplied by the vendor.

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