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TITLE:
Ghostscript "zseticcspace()" Buffer Overflow Vulnerability

SECUNIA ADVISORY ID:
SA29103

VERIFY ADVISORY:
http://secunia.com/advisories/29103/

CRITICAL:
Highly critical

IMPACT:
System access

WHERE:
>From remote

SOFTWARE:
Ghostscript 8.x
http://secunia.com/product/4550/

DESCRIPTION:
Chris Evans has reported a vulnerability in Ghostscript, which can be
exploited by malicious people to compromise a user's system.

The vulnerability is caused due to a boundary error within the
"zseticcspace()" function in zicc.c. This can be exploited to cause a
stack-based buffer overflow via an overly large "Range" array.

Successful exploitation allows execution of arbitrary code.

The vulnerability is reported in version 8.61. Other versions may
also be affected.

SOLUTION:
Do not open untrusted PostScript (.ps) files.

PROVIDED AND/OR DISCOVERED BY:
Chris Evans, Google Security

ORIGINAL ADVISORY:
http://scary.beasts.org/security/CESA-2008-001.html

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