CVE-2018-19870: Debian Linux

High severity, CVSS 8.8. EPSS: 2.4% chance of exploitation in the next 30 days.

An issue was discovered in Qt before 5.11.3. A malformed GIF image causes a NULL pointer dereference in QGifHandler resulting in a segmentation fault.

Affected products

• Debian Debian Linux: version 8.0 only; version 9.0 only
• Opensuse Leap: version 15.0 only
• Qt Qt: before 5.11.3 (fixed in 5.11.3)

Published 2018-12-26. Last modified 2026-06-17.