CVE-2019-20367: Canonical Ubuntu Linux

Critical severity, CVSS 9.1. EPSS: 2.8% chance of exploitation in the next 30 days.

nlist.c in libbsd before 0.10.0 has an out-of-bounds read during a comparison for a symbol name from the string table (strtab).

Affected products

• Canonical Ubuntu Linux: version 12.04 only; version 14.04 only; version 16.04 only; version 18.04 only; version 19.04 only
• Debian Debian Linux: version 9.0 only
• Freedesktop Libbsd: before 0.10.0 (fixed in 0.10.0)
• Opensuse Leap: version 15.1 only

Published 2020-01-08. Last modified 2026-06-17.