#VU42252 Buffer overflow in FFmpeg - CVE-2013-7022

Vulnerability identifier: #VU42252

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-2013-7022

CWE-ID: CWE-119

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 non-authenticated attacker to read and manipulate data.

The g2m_init_buffers function in libavcodec/g2meet.c in FFmpeg before 2.1 does not properly allocate memory for tiles, which allows remote attackers to cause a denial of service (out-of-bounds array access) or possibly have unspecified other impact via crafted Go2Webinar data.

Mitigation
Install update from vendor's website.

Vulnerable software versions

FFmpeg: 0.3 - 2.0

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External links
https://ffmpeg.org/security.html
https://openwall.com/lists/oss-security/2013/11/26/7
https://openwall.com/lists/oss-security/2013/12/08/3
https://github.com/FFmpeg/FFmpeg/commit/e07ac727c1cc9eed39e7f9117c97006f719864bd
https://security.gentoo.org/glsa/201603-06
https://trac.ffmpeg.org/ticket/2971

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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.