CVE-2018-15822: Canonical Ubuntu Linux

High severity, CVSS 7.5. EPSS: 3.3% chance of exploitation in the next 30 days.

The flv_write_packet function in libavformat/flvenc.c in FFmpeg through 2.8 does not check for an empty audio packet, leading to an assertion failure.

Affected products

• Canonical Ubuntu Linux: version 16.04 only; version 18.04 only; version 18.10 only; version 19.04 only; version 20.04 only
• Debian Debian Linux: version 8.0 only; version 9.0 only
• Ffmpeg Ffmpeg: up to and including 2.8

Published 2018-08-23. Last modified 2026-06-17.