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.

Priority

Low

CVSS 3 base score: 6.1

Status

Package Release Status
systemd
Launchpad, Ubuntu, Debian
Upstream Needs triage

Ubuntu 21.04 (Hirsute Hippo)
Released (247.3-3ubuntu3.4)
Ubuntu 20.04 LTS (Focal Fossa)
Released (245.4-4ubuntu3.10)
Ubuntu 18.04 LTS (Bionic Beaver)
Released (237-3ubuntu10.49)
Ubuntu 16.04 ESM (Xenial Xerus)
Released (229-4ubuntu21.31+esm1)
Ubuntu 14.04 ESM (Trusty Tahr) Needed

Patches:
Upstream: https://github.com/systemd/systemd/pull/20002
Upstream: https://github.com/systemd/systemd/commit/38e980a6a5a3442c2f48b1f827284388096d8ca5