Remote code execution in FFmpeg

1) Use-after-free

EUVDB-ID: #VU75667

Risk: High

CVSSv3.1: 8.5 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2022-48434

CWE-ID: CWE-416 - Use After Free

Exploit availability: No

Description

The vulnerability allows a remote attacker to compromise vulnerable system.

The vulnerability exists due to a use-after-free error in libavcodec/pthread_frame.c. A remote attacker can pass a specially crafted file to the application, trigger a use-after-free error and execute arbitrary code on the system.

Successful exploitation of the vulnerability may allow an attacker to compromise vulnerable system.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

FFmpeg: 4.0 - 5.1.1

External links

http://wrv.github.io/h26forge.pdf
http://news.ycombinator.com/item?id=35356201
http://git.ffmpeg.org/gitweb/ffmpeg.git/commit/cc867f2c09d2b69cee8a0eccd62aff002cbbfe11
http://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/PQHNSWXFUN3VJ3AO2AEJUK3BURSGM5G2/
http://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/KOMB6WRUC55VWV25IKJTV22KARBUGWGQ/

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.