CVE-2020-13529 Information

Description

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.

CVSS Vector

CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:C/C:N/I:N/A:H

Reference

https://talosintelligence.com/vulnerability_reports/TALOS-2020-1142 https://security.netapp.com/advisory/ntap-20210625-0005/ https://security.gentoo.org/glsa/202107-48 https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/42TMJVNYRY65B4QCJICBYOEIVZV3KUYI/ 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

Attack Complexity

HIGH

Privileges Required

NONE

User Interaction Required

NONE

Scope

NONE

Confidentiality Impact

CHANGED

Integrity Impact

NONE

Availability Impact

NONE

Base Score

HIGH

Base Severity

6.1