Heap-based buffer overflow in ffmpeg.sourceforge.net FFmpeg

1) Heap-based buffer overflow

EUVDB-ID: #VU32059

Risk: Medium

CVSSv3.1: 6.8 [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-2017-9996

CWE-ID: CWE-122 - Heap-based Buffer Overflow

Exploit availability: No

Description

The vulnerability allows a remote attacker to execute arbitrary code on the target system.

The vulnerability exists due to a boundary error in The cdxl_decode_frame function in libavcodec/cdxl.c in FFmpeg 2.8.x before 2.8.12, 3.0.x before 3.0.8, 3.1.x before 3.1.8, 3.2.x before 3.2.5, and 3.3.x before 3.3.1 does not exclude the CHUNKY format, which. A remote attacker can use a crafted file. to trigger heap-based buffer overflow and execute arbitrary code on the target system.

Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.

Mitigation

Update to version 2.8.12.

Vulnerable software versions

FFmpeg: 2.8.0 - 2.8.11

CPE2.3

• cpe:2.3:a:ffmpeg_sourceforge_net:ffmpeg:2.8.0:*:*:*:*:*:*:*
• cpe:2.3:a:ffmpeg_sourceforge_net:ffmpeg:2.8.1:*:*:*:*:*:*:*
• cpe:2.3:a:ffmpeg_sourceforge_net:ffmpeg:2.8.2:*:*:*:*:*:*:*

External links

http://www.securityfocus.com/bid/99323
http://bugs.chromium.org/p/oss-fuzz/issues/detail?id=1378
http://bugs.chromium.org/p/oss-fuzz/issues/detail?id=1427
http://github.com/FFmpeg/FFmpeg/commit/1e42736b95065c69a7481d0cf55247024f54b660
http://github.com/FFmpeg/FFmpeg/commit/e1b60aad77c27ed5d4dfc11e5e6a05a38c70489d

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.