Vulnerability · Published Jul 7, 2023 · Assigned by fedora
CVE-2021-33796
Critical 10.0
In plain English
A critical-severity use-after-free in MuJS from MuJS. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.7% (higher than 54% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.
Severity (CVSS 3.1)10.0Critical
Exploit odds (30 days)0.7%top 46.2% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known
Official description
In MuJS before version 1.1.2, a use-after-free flaw in the regexp source property access may cause denial of service.
Affected packages & fixed versions
| Ecosystem | Package | Fixed in | Advisory |
|---|---|---|---|
| Debian:12 | mujs | 1.1.3-2 | DEBIAN-CVE-2021-33796 |
| Debian:13 | mujs | 1.1.3-2 | DEBIAN-CVE-2021-33796 |
| Debian:14 | mujs | 1.1.3-2 | DEBIAN-CVE-2021-33796 |
| Ubuntu:22.04:LTS | mujs | 1.1.3-3 | UBUNTU-CVE-2021-33796 |
Affected products (as reported)
Weakness: CWE-416 · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H