#VU69666 NULL pointer dereference in Mujs - CVE-2022-30975

Vulnerability identifier: #VU69666

Vulnerability risk: Medium

CVSSv4.0: 6.6 [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/E:U/U:Green]

CVE-ID: CVE-2022-30975

CWE-ID: CWE-476

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
Mujs

Vendor: Artifex Software, Inc.

Description

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

The vulnerability exists due to a NULL pointer dereference error within the jsP_dumpsyntax() function in jsdump.c. A remote attacker can perform a denial of service (DoS) attack.

Mitigation
Install update from vendor's website.

Vulnerable software versions

Mujs: 1.0.0 - 1.2.0

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External links
https://github.com/ccxvii/mujs/issues/161

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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.