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 20.10 (Groovy Gorilla) |
Released
(246.6-1ubuntu1.7)
|
|
| 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 |
||
Notes
| Author | Note |
|---|---|
| mdeslaur | FORCERENEW was temporarily disabled until proper support for RFC6704 is in place |
References
- https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-13529
- https://talosintelligence.com/vulnerability_reports/TALOS-2020-1142
- https://ubuntu.com/security/notices/USN-5013-1
- https://ubuntu.com/security/notices/USN-5013-2
- NVD
- Launchpad
- Debian