CVE-2009-0749: Opensuse

High severity, CVSS 7.8. EPSS: 1.6% chance of exploitation in the next 30 days.

Use-after-free vulnerability in the GIFReadNextExtension function in lib/pngxtern/gif/gifread.c in OptiPNG 0.6.2 and earlier allows context-dependent attackers to cause a denial of service (application crash) via a crafted GIF image that causes the realloc function to return a new pointer, which triggers memory corruption when the old pointer is accessed.

Affected products

• Opensuse Opensuse: from 10.3, up to and including 11.1
• Optipng Project Optipng: up to and including 0.6.2
• Suse Linux Enterprise: version 9-11 only

Published 2009-03-02. Last modified 2026-06-16.