2020-22885 | mujs GC Scanning buffer overflow

By Max On Jul 16, 2021

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4.1	$0-$5k	0.41

A vulnerability classified as critical was found in mujs up to 1.0.7. This vulnerability affects an unknown code of the component GC Scanning. The manipulation with an unknown input leads to a memory corruption vulnerability. The CWE definition for the vulnerability is CWE-120. As an impact it is known to affect availability. CVE summarizes:

Buffer overflow vulnerability in mujs before 1.0.8 due to recursion in the GC scanning phase, allows remote attackers to cause a denial of service.

The weakness was disclosed 07/13/2021. The advisory is available at github.com. This vulnerability was named CVE-2020-22885 since 08/13/2020. The exploitation appears to be easy. The attack can be initiated remotely. A single authentication is needed for exploitation. The technical details are unknown and an exploit is not available.

Upgrading to version 1.0.8 eliminates this vulnerability.

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