#VU63802 Stack-based buffer overflow in Freeware Advanced Audio Decoder - CVE-2021-32273

Vulnerability identifier: #VU63802

Vulnerability risk: High

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:Amber]

CVE-ID: CVE-2021-32273

CWE-ID: CWE-121

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
Freeware Advanced Audio Decoder
Client/Desktop applications / Multimedia software

Vendor: Krzysztof Nikiel

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 ftypin() function in mp4read.c. A remote attacker can trick the victim to open a specially crafted file and execute code on the vulnerable system.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

Freeware Advanced Audio Decoder: 1.1 - 2.10.0

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External links
https://github.com/knik0/faad2/issues/56
https://www.debian.org/security/2022/dsa-5109

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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.