From: Secunia Security Advisories (sec-advsecunia.com)
Date: Tue Apr 15 2008 - 17:27:05 CDT

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TITLE:
CUPS PNG Filter Integer Overflow Vulnerability

SECUNIA ADVISORY ID:
SA29809

VERIFY ADVISORY:
http://secunia.com/advisories/29809/

CRITICAL:
Moderately critical

IMPACT:
System access

WHERE:
From local network

SOFTWARE:
CUPS 1.x
http://secunia.com/product/921/

DESCRIPTION:
Thomas Pollet has reported a vulnerability in CUPS, which potentially
can be exploited by malicious people to compromise a vulnerable
system.

The vulnerability is caused due to two integer overflow errors in
filter/image-png.c when processing PNG files. These can be exploited
to cause a heap-based buffer overflow via overly large width and
height PNG fields.

Successful exploitation may allow execution of arbitrary code.

The vulnerability is reported in version 1.3.7. Other versions may
also be affected.

SOLUTION:
Fixed in the SVN repository.

Restrict access to trusted users only.

PROVIDED AND/OR DISCOVERED BY:
Thomas Pollet

ORIGINAL ADVISORY:
http://www.cups.org/str.php?L2790

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