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CVE-2020-13529

Date: May 10, 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.

Language: C

Severity Score

Related Resources (13)

https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/42TMJVNYRY65B4QCJICBYOEIVZV3KUYI/
https://nvd.nist.gov/vuln/detail/CVE-2020-13529
https://security-tracker.debian.org/tracker/CVE-2020-13529
https://security.gentoo.org/glsa/202107-48
https://talosintelligence.com/vulnerability_reports/TALOS-2020-1142
http://www.openwall.com/lists/oss-security/2021/09/07/3
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/42TMJVNYRY65B4QCJICBYOEIVZV3KUYI/
https://people.canonical.com/~ubuntu-security/cve/CVE-2020-13529
http://www.openwall.com/lists/oss-security/2021/08/17/3
http://www.openwall.com/lists/oss-security/2021/08/04/2
https://security.netapp.com/advisory/ntap-20210625-0005/
https://access.redhat.com/security/cve/CVE-2020-13529
https://www.mend.io/vulnerability-database/CVE-2020-13529

Severity Score

Weakness Type (CWE)

Authentication Bypass by Spoofing

CWE-290

CVSS v3.1

Base Score:
Attack Vector (AV): ADJACENT_NETWORK
Attack Complexity (AC): HIGH
Privileges Required (PR): NONE
User Interaction (UI): NONE
Scope (S): CHANGED
Confidentiality (C): NONE
Integrity (I): NONE
Availability (A): HIGH

CVSS v2

Base Score:
Access Vector (AV): ADJACENT
Access Complexity (AC): MEDIUM
Authentication (AU): NONE
Confidentiality (C): NONE
Integrity (I): NONE
Availability (A): PARTIAL
Additional information:

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