CVE-2020-15890: Canonical Ubuntu Linux

High severity, CVSS 7.5. EPSS: 3.2% chance of exploitation in the next 30 days.

LuaJit through 2.1.0-beta3 has an out-of-bounds read because __gc handler frame traversal is mishandled.

Affected products

• Canonical Ubuntu Linux: version 16.04 only
• Debian Debian Linux: version 9.0 only
• Luajit Luajit: up to and including 2.0.5; version 2.1.0 only

Published 2020-07-21. Last modified 2026-06-17.