CVE-2018-19491 Memory corruption in n/a
Buffer overflow in Gnuplot's postscript terminal allows attackers to execute arbitrary code or cause denial of service via crafted font arguments.
- 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-2018-19491?
CVE-2018-19491 is a high-severity memory corruption vulnerability in Debian Debian Linux, published on 23 Nov 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
An issue was discovered in post.trm in Gnuplot 5.2.5. This issue allows an attacker to conduct a buffer overflow with an arbitrary amount of data in the PS_options function. This flaw is caused by a missing size check of an argument passed to the "set font" function. This issue occurs when the Gnuplot postscript terminal is used as a backend.
Weakness: CWE-119
Which versions are affected by CVE-2018-19491?
It affects 3 products.
Products include Debian Debian Linux, Gnuplot Gnuplot, Opensuse Leap.
How do I fix CVE-2018-19491?
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-2018-19491 being exploited?
There is no known exploitation of CVE-2018-19491 in the wild and no public exploit code.
Other vulnerabilities in Debian Debian Linux
Sources
Also known as DEBIAN-CVE-2018-19491, GHSA-pxmp-9pvp-h94j, UBUNTU-CVE-2018-19491.