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TITLE:
GNU Gnash "GnashImage::size()" Integer Overflow Vulnerability

SECUNIA ADVISORY ID:
SA47183

VERIFY ADVISORY:
Secunia.com
http://secunia.com/advisories/47183/
Customer Area (Credentials Required)
https://ca.secunia.com/?page=viewadvisory&vuln_id=47183

RELEASE DATE:
2012-03-13

DISCUSS ADVISORY:
http://secunia.com/advisories/47183/#comments

AVAILABLE ON SITE AND IN CUSTOMER AREA:
 * Last Update
 * Popularity
 * Comments
 * Criticality Level
 * Impact
 * Where
 * Solution Status
 * Operating System / Software
 * CVE Reference(s)

http://secunia.com/advisories/47183/

ONLY AVAILABLE IN CUSTOMER AREA:
 * Authentication Level
 * Report Reliability
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https://ca.secunia.com/?page=viewadvisory&vuln_id=47183

ONLY AVAILABLE WITH SECUNIA CSI AND SECUNIA PSI:
 * AUTOMATED SCANNING

http://secunia.com/vulnerability_scanning/personal/
http://secunia.com/vulnerability_scanning/corporate/wsus_sccm_3rd_third_party_patching/

DESCRIPTION:
Tielei Wang has discovered a vulnerability in GNU Gnash, which can be
exploited by malicious people to compromise a user's system.

The vulnerability is caused due to an integer overflow error within
the "GnashImage::size()" method (libbase/GnashImage.h) and can be
exploited to cause a heap-based buffer overflow by tricking a user
into opening a specially crafted SWF file.

The vulnerability is confirmed in version 0.8.10. Prior versions may
also be affected.

SOLUTION:
Fixed in the GIT repository.

PROVIDED AND/OR DISCOVERED BY:
Tielei Wang, Georgia Tech Information Security Center via Secunia.

ORIGINAL ADVISORY:
http://git.savannah.gnu.org/cgit/gnash.git/commit/?id=bb4dc77eecb6ed1b967e3ecbce3dac6c5e6f1527

OTHER REFERENCES:
Further details available in Customer Area:
http://secunia.com/vulnerability_intelligence/

DEEP LINKS:
Further details available in Customer Area:
http://secunia.com/vulnerability_intelligence/

EXTENDED DESCRIPTION:
Further details available in Customer Area:
http://secunia.com/vulnerability_intelligence/

EXTENDED SOLUTION:
Further details available in Customer Area:
http://secunia.com/vulnerability_intelligence/

EXPLOIT:
Further details available in Customer Area:
http://secunia.com/vulnerability_intelligence/

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About:
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