CVE-2015-6824: Canonical Ubuntu Linux

High severity, CVSS 7.5. EPSS: 2.4% chance of exploitation in the next 30 days.

The sws_init_context function in libswscale/utils.c in FFmpeg before 2.7.2 does not initialize certain pixbuf data structures, which allows remote attackers to cause a denial of service (segmentation violation) or possibly have unspecified other impact via crafted video data.

Affected products

• Canonical Ubuntu Linux: version 12.04 only
• Ffmpeg Ffmpeg: up to and including 2.7.1

Published 2015-09-06. Last modified 2026-06-17.