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CVE-2020-13529

Published: 10 May 2021

An exploitable denial-of-service vulnerability exists in Systemd 245. A specially crafted DHCP FORCERENEW packet can cause a server running the DHCP client to be vulnerable to a DHCP ACK spoofing attack. An attacker can forge a pair of FORCERENEW and DCHP ACK packets to reconfigure the server.

Notes

AuthorNote
mdeslaur
FORCERENEW was temporarily disabled until proper support for
RFC6704 is in place
Priority

Low

CVSS 3 base score: 6.1

Status

Package Release Status
systemd
Launchpad, Ubuntu, Debian
bionic
Released (237-3ubuntu10.49)
focal
Released (245.4-4ubuntu3.10)
groovy
Released (246.6-1ubuntu1.7)
hirsute
Released (247.3-3ubuntu3.4)
impish
Released (248.3-1ubuntu3)
jammy
Released (248.3-1ubuntu3)
precise Does not exist

trusty Needed

upstream Needs triage

xenial
Released (229-4ubuntu21.31+esm1)
Patches:
upstream: https://github.com/systemd/systemd/pull/20002
upstream: https://github.com/systemd/systemd/commit/38e980a6a5a3442c2f48b1f827284388096d8ca5