CVE-2019-19331

Name
CVE-2019-19331
Description
knot-resolver before version 4.3.0 is vulnerable to denial of service through high CPU utilization. DNS replies with very many resource records might be processed very inefficiently, in extreme cases taking even several CPU seconds for each such uncached message. For example, a few thousand A records can be squashed into one DNS message (limit is 64kB).
NVD Severity
unknown
Other trackers
CVE, NVD, CERT, CVE Details, CIRCL, Arch Linux, Debian, Red Hat, Ubuntu, Gentoo, SUSE (Bugzilla), SUSE (CVE), Mageia
Mailing lists
oss-security, full-disclosure, bugtraq
Exploits
Exploit DB, Metasploit
Forges
GitHub (code, issues), Aports (code, issues)

References

Type URI
Exploit https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2019-19331
Release Notes https://www.knot-resolver.cz/2019-12-04-knot-resolver-4.3.0.html
secalert@redhat.com https://lists.debian.org/debian-lts-announce/2024/04/msg00017.html

Match rules

CPE URI Source package Min version Max version
cpe:2.3:a:nic:knot_resolver:*:*:*:*:*:*:*:* knot_resolver >= None < 4.3.0

Vulnerable and fixed packages

Source package Branch Version Maintainer Status
knot-resolver edge-community 4.3.0-r0 None fixed
knot-resolver 3.22-community 4.3.0-r0 None fixed
knot-resolver 3.21-community 4.3.0-r0 None fixed
knot-resolver 3.20-community 4.3.0-r0 None fixed
knot-resolver 3.19-community 4.3.0-r0 None fixed
knot-resolver 3.18-community 4.3.0-r0 None fixed
knot-resolver 3.17-community 4.3.0-r0 None fixed