#VU43704 Buffer overflow in FFmpeg and Libav - CVE-2012-0852

Vulnerability identifier: #VU43704

Vulnerability risk: Medium

CVSSv4.0: 1 [CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:A/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:U/U:Green]

CVE-ID: CVE-2012-0852

CWE-ID: CWE-119

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
FFmpeg
Universal components / Libraries / Libraries used by multiple products
Libav
Client/Desktop applications / Multimedia software

Vendor: ffmpeg.sourceforge.net
Libav

Description

The vulnerability allows a remote non-authenticated attacker to read and manipulate data.

The adpcm_decode_frame function in adpcm.c in libavcodec in FFmpeg before 0.9.1 and in Libav 0.5.x before 0.5.9, 0.6.x before 0.6.6, 0.7.x before 0.7.6, and 0.8.x before 0.8.3 allows remote attackers to cause a denial of service (application crash) and possibly execute arbitrary code via an ADPCM file with the number of channels not equal to two.

Mitigation
Install update from vendor's website.

Vulnerable software versions

FFmpeg: 0.7.1 - 0.8.11

Libav: 0.5 - 0.8.11

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External links
https://ffmpeg.org/security.html
https://git.videolan.org/?p=ffmpeg.git;a=commit;h=608708009f69ba4cecebf05120c696167494c897
https://libav.org/
https://www.debian.org/security/2012/dsa-2494
https://www.openwall.com/lists/oss-security/2012/02/14/4
https://www.ubuntu.com/usn/USN-1479-1
https://exchange.xforce.ibmcloud.com/vulnerabilities/78932
https://ffmpeg.org/trac/ffmpeg/ticket/794

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Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.