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CVE-2018-19491

7.8 · HIGH

An issue was discovered in post.trm in Gnuplot 5.2.5.

Published Nov 23, 2018CWE-119EPSS 1.77%

Overview

CVE-2018-19491 is a high-severity vulnerability. It was published on November 23, 2018 and has a CVSS 3.0 base score of 7.8 (HIGH).

This vulnerability has a CVSS 3.0 base score of 7.8, rated HIGH. It requires local or adjacent network access to exploit. No authentication or special privileges are required for exploitation.

Technical 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.

Remediation

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

References

Reflists.opensuse.org/opensuse-security-announce/2019-04/msg00066.htmlReflists.debian.org/debian-lts-announce/2018/11/msg00031.htmlReflists.debian.org/debian-lts-announce/2018/11/msg00035.htmlRefsourceforge.net/p/gnuplot/bugs/2094/Refsourceforge.net/p/gnuplot/gnuplot-main/ci/d5020716834582b20a5e12cdd49f39ee4f9dd949/Refusn.ubuntu.com/4541-1/Reflists.opensuse.org/opensuse-security-announce/2019-04/msg00066.htmlReflists.debian.org/debian-lts-announce/2018/11/msg00031.htmlReflists.debian.org/debian-lts-announce/2018/11/msg00035.htmlRefsourceforge.net/p/gnuplot/bugs/2094/

How CyberStrike helps

Frequently asked questions

What is CVE-2018-19491?

CVE-2018-19491 is a high-severity vulnerability. It was published on November 23, 2018 and has a CVSS 3.0 base score of 7.8 (HIGH).

How severe is CVE-2018-19491?

This vulnerability has a CVSS 3.0 base score of 7.8, rated HIGH. It requires local or adjacent network access to exploit. No authentication or special privileges are required for exploitation.

How do I fix or remediate CVE-2018-19491?

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

How can CyberStrike help with CVE-2018-19491?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2018-19491 is actually reachable in your own applications and APIs, then verifies each finding before reporting it. That tells you if the weakness is a real, exploitable risk in your environment or a false positive you can safely deprioritize.

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