#VU71645 NULL pointer dereference in FFmpeg - CVE-2022-3341

Vulnerability identifier: #VU71645

Vulnerability risk: Low

CVSSv4.0: 1.2 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:U/U:Clear]

CVE-ID: CVE-2022-3341

CWE-ID: CWE-476

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 attacker to perform a denial of service (DoS) attack.

The vulnerability exists due to a NULL pointer dereference error within the decode_main_header() function in libavformat/nutdec.c A remote attacker can trick the victim to open a specially crafted file and perform a denial of service (DoS) attack.

Mitigation
Install update from vendor's website.

Vulnerable software versions

FFmpeg: 5.0 - 5.0.2

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External links
https://bugzilla.redhat.com/show_bug.cgi?id=2157054
https://github.com/FFmpeg/FFmpeg/commit/9cf652cef49d74afe3d454f27d49eb1a1394951e

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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.