CVE-2018-18718: Debian Linux

High severity, CVSS 7.8. EPSS: 0.4% chance of exploitation in the next 30 days.

An issue was discovered in gThumb through 3.6.2. There is a double-free vulnerability in the add_themes_from_dir method in dlg-contact-sheet.c because of two successive calls of g_free, each of which frees the same buffer.

Affected products

• Debian Debian Linux: version 8.0 only
• Gnome Gthumb: up to and including 3.6.2

Published 2018-10-29. Last modified 2026-06-17.