CVE-2020-21890 Memory corruption in n/a
Remote attackers can cause denial of service or unspecified impacts via crafted PDFs due to a buffer overflow in Ghostscript.
- 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-2020-21890?
CVE-2020-21890 is a high-severity memory corruption vulnerability in Artifex Ghostscript, published on 22 Aug 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
Buffer Overflow vulnerability in clj_media_size function in devices/gdevclj.c in Artifex Ghostscript 9.50 allows remote attackers to cause a denial of service or other unspecified impact(s) via opening of crafted PDF document.
Weakness: CWE-787
Which versions are affected by CVE-2020-21890?
It affects 1 product.
Products include Artifex Ghostscript.
How do I fix CVE-2020-21890?
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-2020-21890 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2020-21890 exists.
Other vulnerabilities in Artifex Ghostscript
Sources
Also known as DEBIAN-CVE-2020-21890, GHSA-44hq-r6f6-m9g4, UBUNTU-CVE-2020-21890.