CVE-2023-46362 Use after free in n/a

Medium 5.5 Published 8 Nov 2023 Updated 4 Sep 2024

A heap-use-after-free in jbig2enc allows attackers to execute arbitrary code or cause denial of service via crafted input.

Exploited in the wild: Not known
Login needed: Not needed
Attackable: Local or same network only
Victim action needed: A user has to click or open something
Fix: Available

What is CVE-2023-46362?

CVE-2023-46362 is a medium-severity use after free vulnerability in n/a, published on 8 Nov 2023. It can only be exploited from the same machine or local network, and only if a user opens a file or follows a link.

Official description

jbig2enc v0.28 was discovered to contain a heap-use-after-free via jbig2enc_auto_threshold_using_hash in src/jbig2enc.cc.

Weakness: CWE-416

Which versions are affected by CVE-2023-46362?

It affects 1 product.

Products include Jbig2enc Project Jbig2enc.

How do I fix CVE-2023-46362?

Upgrade to a fixed version.

Upgrade to the fixed version. These bugs are found with fuzzing and sanitisers and avoided by memory-safe languages. More about Use after free.

Is CVE-2023-46362 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2023-46362 exists.

Sources

Also known as DEBIAN-CVE-2023-46362, GHSA-f4hj-7928-3pr9, UBUNTU-CVE-2023-46362.