CVE-2020-26519 Memory corruption in n/a
Attackers can cause a denial of service via heap buffer overflow in MuPDF when parsing JBIG2 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-2020-26519?
CVE-2020-26519 is a medium-severity memory corruption vulnerability in Artifex Mupdf, published on 2 Oct 2020. 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
Artifex MuPDF before 1.18.0 has a heap based buffer over-write when parsing JBIG2 files allowing attackers to cause a denial of service.
Weakness: CWE-787
Which versions are affected by CVE-2020-26519?
It affects 3 products.
Products include Artifex Mupdf, Debian Debian Linux, Fedoraproject Fedora.
How do I fix CVE-2020-26519?
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-2020-26519 being exploited?
There is no known exploitation of CVE-2020-26519 in the wild and no public exploit code.
Other vulnerabilities in Artifex Mupdf
Sources
Also known as DEBIAN-CVE-2020-26519, DSA-4794-1, GHSA-pgrw-q27m-5995, UBUNTU-CVE-2020-26519.