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TITLE:
FFmpeg Vorbis Decoder Multiple Vulnerabilities

SECUNIA ADVISORY ID:
SA43197

VERIFY ADVISORY:
Secunia.com
http://secunia.com/advisories/43197/
Customer Area (Credentials Required)
https://ca.secunia.com/?page=viewadvisory&vuln_id=43197

RELEASE DATE:
2011-02-10

DISCUSS ADVISORY:
http://secunia.com/advisories/43197/#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/43197/

ONLY AVAILABLE IN CUSTOMER AREA:
 * Authentication Level
 * Report Reliability
 * Secunia PoC
 * Secunia Analysis
 * Systems Affected
 * Approve Distribution
 * Remediation Status
 * Secunia CVSS Score
 * CVSS

https://ca.secunia.com/?page=viewadvisory&vuln_id=43197

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:
Some vulnerabilities have been reported in FFmpeg, which can be
exploited by malicious people to cause a DoS (Denial of Service) and
potentially compromise an application using the library.

The vulnerabilities are caused due to errors within the Vorbis
Decoder (libavcodec/vorbis_dec.c) component when processing certain
Vorbis files, which can be exploited to e.g. cause cause a crash or
memory corruption by tricking a user into opening specially crafted
Vorbis files.

SOLUTION:
Fixed in the GIT repository.

PROVIDED AND/OR DISCOVERED BY:
gmaxwell and CERT.

ORIGINAL ADVISORY:
http://roundup.ffmpeg.org/issue2322
http://roundup.ffmpeg.org/issue2548
http://roundup.ffmpeg.org/issue2550
http://git.ffmpeg.org/?p=ffmpeg.git;a=commitdiff;h=3dde66752d59dfdd0f3727efd66e7202b3c75078
http://git.ffmpeg.org/?p=ffmpeg.git;a=commitdiff;h=366d919016a679d3955f6fe5278fa7ce4f47b81e
http://git.ffmpeg.org/?p=ffmpeg.git;a=commitdiff;h=13184036a6b1b1d4b61c91118c0896e9ad4634c3
http://git.ffmpeg.org/?p=ffmpeg.git;a=commitdiff;h=925aa96915b8143017cb63418cb709b992c59065

OTHER REFERENCES:
Further details available in Customer Area:
http://secunia.com/products/corporate/EVM/

DEEP LINKS:
Further details available in Customer Area:
http://secunia.com/products/corporate/EVM/

EXTENDED DESCRIPTION:
Further details available in Customer Area:
http://secunia.com/products/corporate/EVM/

EXTENDED SOLUTION:
Further details available in Customer Area:
http://secunia.com/products/corporate/EVM/

EXPLOIT:
Further details available in Customer Area:
http://secunia.com/products/corporate/EVM/

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

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