#VU73928 Heap-based buffer overflow in SoX - CVE-2021-23172

Vulnerability identifier: #VU73928

Vulnerability risk: Low

CVSSv4.0: 1 [CVSS:4.0/AV:L/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-2021-23172

CWE-ID: CWE-122

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
SoX
Client/Desktop applications / Multimedia software

Vendor: sox.sourceforge.net

Description

The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.

The vulnerability exists due to a boundary error within the startread() function in hcom.c. A remote attacker can trick the victim to open a specially crafted file, trigger a heap-based buffer overflow and crash the application.

Mitigation
Cybersecurity Help is currently unaware of any official solution to address this vulnerability.

Vulnerable software versions

SoX: 12.16 - 14.4.2

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External links
https://bugzilla.redhat.com/show_bug.cgi?id=1975666
https://sourceforge.net/p/sox/bugs/350/
https://access.redhat.com/security/cve/CVE-2021-23172
https://security.archlinux.org/CVE-2021-23172

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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.