[SA34292] Ghostscript jbig2dec JBIG2 Processing Buffer Overflow Vulnerability

----------------------------------------------------------------------

Secunia is pleased to announce the release of the annual Secunia
report for 2008.

Highlights from the 2008 report:
* Vulnerability Research
* Software Inspection Results
* Secunia Research Highlights
* Secunia Advisory Statistics

Request the full 2008 Report here:
http://secunia.com/advisories/try_vi/request_2008_report/

Stay Secure,

Secunia

----------------------------------------------------------------------

TITLE:
Ghostscript jbig2dec JBIG2 Processing Buffer Overflow Vulnerability

SECUNIA ADVISORY ID:
SA34292

VERIFY ADVISORY:
http://secunia.com/advisories/34292/

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

The vulnerability is caused due to a boundary error in the included
jbig2dec library while decoding JBIG2 symbol dictionary segments.
This can be exploited to cause a heap-based buffer overflow via a
specially crafted PDF file.

Successful exploitation may allow execution of arbitrary code.

The vulnerability is confirmed in version 8.64. Other versions may
also be affected.

SOLUTION:
Do not process untrusted PDF files.

PROVIDED AND/OR DISCOVERED BY:
Alin Rad Pop, Secunia Research

ORIGINAL ADVISORY:
Secunia Research:
http://secunia.com/secunia_research/2009-21/

OTHER REFERENCES:
Red Hat:
https://bugzilla.redhat.com/show_bug.cgi?id=493379

----------------------------------------------------------------------

About:
This Advisory was delivered by Secunia as a free service to help
everybody 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.

----------------------------------------------------------------------

Unsubscribe: Secunia Security Advisories
http://secunia.com/sec_adv_unsubscribe/?email=wz.bluesnow.secunia%40blogger.com

----------------------------------------------------------------------