CVE-2019-20919 Information

Description

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.

CVSS Vector

CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H

Reference

http://lists.opensuse.org/opensuse-security-announce/2020-10/msg00012.html http://lists.opensuse.org/opensuse-security-announce/2020-10/msg00013.html https://github.com/perl5-dbi/dbi/commit/eca7d7c8f43d96f6277e86d1000e842eb4cc67ff https://lists.debian.org/debian-lts-announce/2020/09/msg00026.html https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/JXLKODJ7B57GITDEZZXNSHPK4VBYXYHR/ https://metacpan.org/pod/distribution/DBI/ChangesChanges-in-DBI-1.643-… https://usn.ubuntu.com/4534-1/

Attack Complexity

HIGH

Privileges Required

LOW

User Interaction Required

LOW

Scope

NONE

Confidentiality Impact

UNCHANGED

Integrity Impact

NONE

Availability Impact

NONE

Base Score

HIGH

Base Severity

4.7