Vulnerability identifier: #VU42264
Vulnerability risk: Medium
CVSSv3.1: 6.4 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L/E:U/RL:O/RC:C]
CVE-ID:
CWE-ID:
CWE-20
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 uses an incorrect ordering of arithmetic operations, 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
External links
http://ffmpeg.org/security.html
http://openwall.com/lists/oss-security/2013/11/26/7
http://openwall.com/lists/oss-security/2013/12/08/3
http://github.com/FFmpeg/FFmpeg/commit/821a5938d100458f4d09d634041b05c860554ce0
http://security.gentoo.org/glsa/201603-06
http://trac.ffmpeg.org/ticket/2922
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.