PT-2021-6707 · Mujs · Mujs

Bird8693 · Published 2021-07-13 · Updated 2021-07-15 · CVE-2020-22885

Positive Technologies (AI Summary)

CVSS v2.0

7.8

High

Base vector

AV:N/AC:L/Au:N/C:N/I:N/A:C

Name of the Vulnerable Software and Affected Versions muJS versions prior to 1.0.8

Description The issue is related to a buffer overflow vulnerability due to recursion in the GC scanning phase, which allows remote attackers to cause a denial of service. This is caused by a lack of input validation, leading to potential service disruption.

Recommendations For versions prior to 1.0.8, update to version 1.0.8 or later to resolve the issue. As a temporary workaround, consider restricting access to the GC scanning phase to minimize the risk of exploitation.

Exploit

Fix

Buffer Overflow

Weakness Enumeration

CWE-120

Related Identifiers

BDU:2022-02066

CVE-2020-22885

Affected Products

Mujs

References · 10

• 🔥 https://github.com/ccxvii/mujs/issues/133 · Exploit
• https://osv.dev/vulnerability/CVE-2020-22885 · Vendor Advisory
• https://security-tracker.debian.org/tracker/CVE-2020-22885 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2020-22885 · Security Note
• https://osv.dev/vulnerability/DEBIAN-CVE-2020-22885 · Vendor Advisory
• https://cve.org/CVERecord?id=CVE-2020-22885 · Security Note
• https://bdu.fstec.ru/vul/2022-02066 · Security Note
• https://ubuntu.com/security/CVE-2020-22885 · Vendor Advisory
• https://osv.dev/vulnerability/UBUNTU-CVE-2020-22885 · Vendor Advisory
• https://github.com/ccxvii/mujs/commit/331c5ecbaca705eb8c899e814afe94971b14207b · Note