Vulnerability identifier: #VU73927

Vulnerability risk: Low

CVSSv3.1: 4 [CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:L/E:U/RL:U/RC:C]

CVE-ID: CVE-2021-23159

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 lsx_read_w_buf() function in formats_i.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
http://access.redhat.com/security/cve/CVE-2021-23159
http://sourceforge.net/p/sox/bugs/352/
http://security.archlinux.org/CVE-2021-23159
http://bugzilla.redhat.com/show_bug.cgi?id=1975671

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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.