CVE-2021-45944 Use after free in n/a
A use-after-free vulnerability in Ghostscript allows attackers to execute arbitrary code or cause a denial of service via crafted files.
- 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-2021-45944?
CVE-2021-45944 is a medium-severity use after free vulnerability in Artifex Ghostscript, published on 31 Dec 2021. 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
Ghostscript GhostPDL 9.50 through 9.53.3 has a use-after-free in sampled_data_sample (called from sampled_data_continue and interp).
Weakness: CWE-416
Which versions are affected by CVE-2021-45944?
It affects 2 products.
Products include Artifex Ghostscript, Debian Debian Linux.
How do I fix CVE-2021-45944?
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-2021-45944 being exploited?
There is no known exploitation of CVE-2021-45944 in the wild and no public exploit code.
Other vulnerabilities in Artifex Ghostscript
Sources
Also known as DEBIAN-CVE-2021-45944, GHSA-9mw4-q4wg-7hwh, UBUNTU-CVE-2021-45944.