CVE-2018-6544 Denial of service in n/a
Remote attackers can cause a denial of service in MuPDF via a crafted PDF document triggering recursive object stream references.
- 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-2018-6544?
CVE-2018-6544 is a medium-severity denial of service vulnerability in Artifex Mupdf, published on 2 Feb 2018. 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
pdf_load_obj_stm in pdf/pdf-xref.c in Artifex MuPDF 1.12.0 could reference the object stream recursively and therefore run out of error stack, which allows remote attackers to cause a denial of service via a crafted PDF document.
Weakness: CWE-674
Which versions are affected by CVE-2018-6544?
It affects 2 products.
Products include Artifex Mupdf, Debian Debian Linux.
How do I fix CVE-2018-6544?
Upgrade to a fixed version.
Upgrade, then put limits on request size, rate and nesting depth so one client cannot exhaust the service. More about Denial of service.
Is CVE-2018-6544 being exploited?
There is no known exploitation of CVE-2018-6544 in the wild and no public exploit code.
Other vulnerabilities in Artifex Mupdf
Sources
Also known as ALPINE-CVE-2018-6544, DEBIAN-CVE-2018-6544, GHSA-3vq6-g92c-jm9j, UBUNTU-CVE-2018-6544.