Uncontrolled Recursion in Mujs - CVE-2022-30974

Vulnerability identifier: #VU69665

CSH Severity: Medium

CVSS v4: 8.7 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N]

CVE-ID: CVE-2022-30974

CWE-ID: CWE-674

Exploitation vector: Remote access

Exploit availability: No public exploit available

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

The vulnerability exists due to unlimited recursion within the compile() function in regexp.cc. A remote attacker can pass a specially crafted string to the application and consume all available CPU resources on the system.

Mujs
Debian Linux
Fedora
mujs (Debian package)
mujs

Install updates from vendor's website.

Mujs - update to 1.3.0
mujs (Debian package) - update to 1.1.0-1+deb11u2
mujs - addressed in versions 1.3.2-1.fc37, 1.3.2-1.fc38

• https://github.com/ccxvii/mujs/issues/162

• Denial of service in Artifex MuJS
• Debian update for mujs
• Fedora 38 update for mujs
• Fedora 37 update for mujs