CVE-2018-19134 Memory corruption in n/a
A type confusion vulnerability in Ghostscript allows attackers to execute arbitrary code or cause a denial of service via a crafted PostScript document.
- 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-2018-19134?
CVE-2018-19134 is a high-severity memory corruption vulnerability in Artifex Ghostscript, published on 20 Dec 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
In Artifex Ghostscript through 9.25, the setpattern operator did not properly validate certain types. A specially crafted PostScript document could exploit this to crash Ghostscript or, possibly, execute arbitrary code in the context of the Ghostscript process. This is a type confusion issue because of failure to check whether the Implementation of a pattern dictionary was a structure type.
Weakness: CWE-704
Which versions are affected by CVE-2018-19134?
It affects 7 products.
Products include Artifex Ghostscript, Debian Debian Linux, Redhat Enterprise Linux Desktop, Redhat Enterprise Linux Server, Redhat Enterprise Linux Server Aus, Redhat Enterprise Linux Server Eus and 1 more.
How do I fix CVE-2018-19134?
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-2018-19134 being exploited?
There is no known exploitation of CVE-2018-19134 in the wild and no public exploit code.
Other vulnerabilities in Artifex Ghostscript
Sources
Also known as DEBIAN-CVE-2018-19134, GHSA-r77j-73rg-4f8h, UBUNTU-CVE-2018-19134.