#VU32496 Heap-based buffer overflow in FFmpeg - CVE-2014-5271

Vulnerability identifier: #VU32496

Vulnerability risk: Medium

CVSSv4.0: 2.7 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:U/U:Green]

CVE-ID: CVE-2014-5271

CWE-ID: CWE-122

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
FFmpeg
Universal components / Libraries / Libraries used by multiple products

Vendor: ffmpeg.sourceforge.net

Description

The vulnerability allows a remote attacker to execute arbitrary code on the target system.

The vulnerability exists due to a boundary error in Heap-based buffer overflow in the encode_slice function in libavcodec/proresenc_kostya.c in FFMpeg before 1.1.14, 1.2.x before 1.2.8, 2.x before 2.2.7, and 2.3.x before 2.3.3 and Libav before 10.5. A remote attacker can use unspecified vectors. to trigger heap-based buffer overflow and execute arbitrary code on the target system.

Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.

Mitigation
Update to version 2.3.3.

Vulnerable software versions

FFmpeg: 2.3.0 - 2.3.2

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External links
https://git.videolan.org/?p=ffmpeg.git;a=commit;h=52b81ff4635c077b2bc8b8d3637d933b6629d803
https://www.osvdb.org/111725
https://www.securityfocus.com/bid/69250
https://security.gentoo.org/glsa/201603-06
https://www.ffmpeg.org/security.html

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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.