CVE-2019-20919: Canonical Ubuntu Linux

Medium severity, CVSS 4.7. EPSS: 0.5% chance of exploitation in the next 30 days.

An issue was discovered in the DBI module before 1.643 for Perl. The hv_fetch() documentation requires checking for NULL and the code does that. But, shortly thereafter, it calls SvOK(profile), causing a NULL pointer dereference.

Affected products

• Canonical Ubuntu Linux: version 12.04 only; version 14.04 only; version 16.04 only; version 18.04 only
• Debian Debian Linux: version 9.0 only
• Fedoraproject Fedora: version 31 only
• Opensuse Leap: version 15.1 only; version 15.2 only
• Perl Dbi: before 1.643 (fixed in 1.643)

Published 2020-09-17. Last modified 2026-06-17.