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

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