Vulnerability · Published Apr 17, 2023 · Assigned by fedora
CVE-2021-33797
Critical 9.8
In plain English
A critical-severity memory corruption in mujs. Proof-of-concept exploit code is public. The chance it is exploited in the next 30 days is estimated at 0.8% (higher than 57% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.
Severity (CVSS 3.1)9.8Critical
Exploit odds (30 days)0.8%top 42.9% of all CVEs
Exploited in the wildNo reportsCISA SSVC: poc
Attack toolingNoneno public tooling known
Official description
Buffer-overflow in jsdtoa.c in Artifex MuJS in versions 1.0.1 to 1.1.1. An integer overflow happens when js_strtod() reads in floating point exponent, which leads to a buffer overflow in the pointer *d.
Affected packages & fixed versions
| Ecosystem | Package | Fixed in | Advisory |
|---|---|---|---|
| Debian:12 | mujs | 1.1.3-2 | DEBIAN-CVE-2021-33797 |
| Debian:13 | mujs | 1.1.3-2 | DEBIAN-CVE-2021-33797 |
| Debian:14 | mujs | 1.1.3-2 | DEBIAN-CVE-2021-33797 |
| Ubuntu:22.04:LTS | mujs | 1.1.3-3 | UBUNTU-CVE-2021-33797 |
Affected products (as reported)
Weakness: CWE-119 · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H