CVE-2021-45005 Memory corruption in n/a

Critical 9.8 Published 14 Feb 2022 Updated 4 Aug 2024

Heap buffer overflow in MuJS allows attackers to execute arbitrary code or cause denial of service via crafted JavaScript.

Exploited in the wild: Not known
Login needed: Not needed
Attackable: Over the internet
Victim action needed: Not needed
Fix: Available

What is CVE-2021-45005?

CVE-2021-45005 is a critical memory corruption vulnerability in n/a, published on 14 Feb 2022. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

Artifex MuJS v1.1.3 was discovered to contain a heap buffer overflow which is caused by conflicting JumpList of nested try/finally statements.

Weakness: CWE-787

Which versions are affected by CVE-2021-45005?

It affects 1 product.

Linux distribution packages (1)

mujs openSUSE:Tumbleweed All versions 1.2.0-2.1

Products include Artifex Mujs.

How do I fix CVE-2021-45005?

Upgrade to a fixed version.

Upgrade to the fixed version. Memory-safe languages, compiler hardening and fuzzing prevent most new cases. More about Memory corruption.

Is CVE-2021-45005 being exploited?

There is no known exploitation of CVE-2021-45005 in the wild and no public exploit code.

Sources

Also known as DEBIAN-CVE-2021-45005, GHSA-4ch9-x597-xpg3, UBUNTU-CVE-2021-45005, openSUSE-SU-2024:11851-1.