CVE-2021-33797 Integer overflow in mujs
An integer overflow in MuJS leads to a buffer overflow, potentially allowing attackers to execute arbitrary code or cause denial of service.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2021-33797?
CVE-2021-33797 is a critical vulnerability in mujs, published on 17 Apr 2023. An attacker can exploit it over the internet without logging in, with no action from the victim.
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.
Which versions are affected by CVE-2021-33797?
It affects 1 product.
Products include Artifex Mujs.
How do I fix CVE-2021-33797?
Upgrade to a fixed version.
Is CVE-2021-33797 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2021-33797 exists.
Other vulnerabilities in mujs
Sources
Also known as DEBIAN-CVE-2021-33797, GHSA-cm79-jwwm-5h7h.