#VU32155 Out-of-bounds read in FFmpeg - CVE-2016-7450

Vulnerability identifier: #VU32155

Vulnerability risk: Low

CVSSv4.0: 5.7 [CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear]

CVE-ID: CVE-2016-7450

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 ff_log2_16bit_c function in libavutil/intmath.h in FFmpeg before 3.1.4 is vulnerable to reading out-of-bounds memory when it decodes a malformed AIFF file.

Mitigation
Install update from vendor's website.

Vulnerable software versions

FFmpeg: 3.1.0 - 3.1.3

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External links
https://www.openwall.com/lists/oss-security/2016/10/08/1
https://www.securityfocus.com/bid/94841
https://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.