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.

The remote host is affected by the vulnerability described in GLSA-202105-30 (MuPDF: Multiple vulnerabilities)

    Multiple vulnerabilities have been discovered in MuPDF. Please review       the CVE identifiers referenced below for details.
  Impact :

    A remote attacker could entice a user to open a specially crafted PDF       document using MuPDF, possibly resulting in a Denial of Service condition       or have other unspecified impact.
  Workaround :

    There is no known workaround at this time.

A heap-based buffer overflow flaw was discovered in MuPDF, a lightweight PDF viewer, which may result in denial of service or the execution of arbitrary code if malformed documents are opened.

mupdf 1.18.0 and depending packages

Note that Tenable Network Security has extracted the preceding description block directly from the Fedora update system website.
Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.

ID	Name	Product	Family	Severity
157038	GLSA-202105-30 : MuPDF: Multiple vulnerabilities	Nessus	Gentoo Local Security Checks	medium
143187	Debian DSA-4794-1 : mupdf - security update	Nessus	Debian Local Security Checks	medium
141909	Fedora 32 : mupdf / python-PyMuPDF / zathura-pdf-mupdf (2020-3cea1ac8f3)	Nessus	Fedora Local Security Checks	medium
141903	Fedora 33 : mupdf / python-PyMuPDF / zathura-pdf-mupdf (2020-972ad7c8a8)	Nessus	Fedora Local Security Checks	medium

Detections

Analytics

CVE-2020-26519

medium

Tenable Plugins

medium

medium

medium

medium