#VU73929 Division by zero in SoX - CVE-2021-23210

Vulnerability identifier: #VU73929

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-2021-23210

CWE-ID: CWE-369

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 divide by zero error within the read_samples() function in voc.c. A remote attacker can trick the victim to open a specially crafted file 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://sourceforge.net/p/sox/bugs/351/
https://security.archlinux.org/CVE-2021-23210
https://bugzilla.redhat.com/show_bug.cgi?id=1975670
https://access.redhat.com/security/cve/CVE-2021-23210

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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.