CVE-2018-19492: Debian Linux

High severity, CVSS 7.8. EPSS: 1.8% chance of exploitation in the next 30 days.

An issue was discovered in cairo.trm in Gnuplot 5.2.5. This issue allows an attacker to conduct a buffer overflow with an arbitrary amount of data in the cairotrm_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 pngcairo terminal is used as a backend.

Affected products

• Debian Debian Linux: version 8.0 only
• Gnuplot Gnuplot: version 5.2.5 only
• Opensuse Leap: version 15.0 only

Published 2018-11-23. Last modified 2026-06-17.