Gnome · Gthumb · CVE-2018-18718
**Name of the Vulnerable Software and Affected Versions**
gThumb versions prior to 3.6.3
**Description**
A double-free issue was found in the add themes from dir method in dlg-contact-sheet.c, caused by two successive calls of `g free`, each freeing the same buffer.
**Recommendations**
For versions prior to 3.6.3, update to version 3.6.3 or later to resolve the issue.