CVE-2018-19490: Debian Linux

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

An issue was discovered in datafile.c in Gnuplot 5.2.5. This issue allows an attacker to conduct a heap-based buffer overflow with an arbitrary amount of data in df_generate_ascii_array_entry. To exploit this vulnerability, an attacker must pass an overlong string as the right bound of the range argument that is passed to the plot function.

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.