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CVE-2019-20919

Published: 17 September 2020

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.

Priority

Medium

Cvss 3 Severity Score

4.7

Score breakdown

Status

Package Release Status
libdbi-perl
Launchpad, Ubuntu, Debian
bionic
Released (1.640-1ubuntu0.2)
focal Not vulnerable
(1.643-1)
trusty
Released (1.630-1ubuntu0.1~esm5)
Available with Ubuntu Pro or Ubuntu Pro (Infra-only)
upstream
Released (1.643-1)
xenial
Released (1.634-1ubuntu0.2)
Patches:
upstream: https://github.com/perl5-dbi/dbi/commit/eca7d7c8f43d96f6277e86d1000e842eb4cc67ff

Severity score breakdown

Parameter Value
Base score 4.7
Attack vector Local
Attack complexity High
Privileges required Low
User interaction None
Scope Unchanged
Confidentiality None
Integrity impact None
Availability impact High
Vector CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H