CVE-2020-13529
First published: Mon May 10 2021(Updated: )
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.
Credit: talos-cna@cisco.com
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Systemd Project Systemd | =245 | |
| Fedoraproject Fedora | =33 | |
| Netapp Active Iq Unified Manager Vsphere | ||
| Netapp Cloud Backup |
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Reference Links
- http://www.openwall.com/lists/oss-security/2021/08/04/2
- http://www.openwall.com/lists/oss-security/2021/08/17/3
- http://www.openwall.com/lists/oss-security/2021/09/07/3
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/42TMJVNYRY65B4QCJICBYOEIVZV3KUYI/
- https://security.gentoo.org/glsa/202107-48
- https://security.netapp.com/advisory/ntap-20210625-0005/
- https://talosintelligence.com/vulnerability_reports/TALOS-2020-1142
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/42TMJVNYRY65B4QCJICBYOEIVZV3KUYI/
Frequently Asked Questions
What is CVE-2020-13529?
CVE-2020-13529 is a denial-of-service vulnerability in Systemd 245 that allows an attacker to cause a server running the DHCP client to be vulnerable to a DHCP ACK spoofing attack.
How does CVE-2020-13529 work?
CVE-2020-13529 works by sending a specially crafted DHCP FORCERENEW packet, which can be used to forge a pair of FORCERENEW and DCHP ACK packets to reconfigure the server.
Which software versions are affected by CVE-2020-13529?
The affected software versions include Systemd 245, Fedoraproject Fedora 33, Netapp Active Iq Unified Manager, and Netapp Cloud Backup.
What is the severity of CVE-2020-13529?
CVE-2020-13529 has a severity rating of 6.1 (Medium).
Is there a fix available for CVE-2020-13529?
Yes, a fix for CVE-2020-13529 is available. It is recommended to update to the latest version of the affected software.
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- canonical/netapp cloud backup