Vulnerability identifier: #VU32158

Vulnerability risk: High

CVSSv3.1: 7.7 [CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2016-2329

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 execute arbitrary code.

libavcodec/tiff.c in FFmpeg before 2.8.6 does not properly validate RowsPerStrip values and YCbCr chrominance subsampling factors, which allows remote attackers to cause a denial of service (out-of-bounds array access) or possibly have unspecified other impact via a crafted TIFF file, related to the tiff_decode_tag and decode_frame functions.

Mitigation
Install update from vendor's website.

Vulnerable software versions

FFmpeg: 2.8.0 - 2.8.5

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External links
http://git.videolan.org/?p=ffmpeg.git;a=commit;h=89f464e9c229006e16f6bb5403c5529fdd0a9edd
http://lists.opensuse.org/opensuse-updates/2016-02/msg00129.html
http://www.securityfocus.com/bid/84212
http://www.securitytracker.com/id/1035010
http://security.gentoo.org/glsa/201606-09

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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.