Vulnerability identifier: #VU32148

Vulnerability risk: Low

CVSSv3.1: 6.8 [CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2016-7502

CWE-ID: CWE-125

Exploitation vector: Local

Exploit availability: No

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

Vendor: ffmpeg.sourceforge.net

Description

The vulnerability allows a local non-authenticated attacker to execute arbitrary code.

The cavs_idct8_add_c function in libavcodec/cavsdsp.c in FFmpeg before 3.1.4 is vulnerable to reading out-of-bounds memory when decoding with cavs_decode.

Mitigation
Install update from vendor's website.

Vulnerable software versions

FFmpeg: 3.1.0 - 3.1.3

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External links
http://www.openwall.com/lists/oss-security/2016/10/08/1
http://www.securityfocus.com/bid/94834
http://security.gentoo.org/glsa/201701-71

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Q & A

Can this vulnerability be exploited remotely?

No. This vulnerability can be exploited locally. The attacker should have authentication credentials and successfully authenticate on the system.

Is there known malware, which exploits this vulnerability?

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