Authentication Bypass Affecting systemd package, versions <237-3ubuntu10.49


low

Snyk CVSS

    Attack Complexity High
    Scope Changed
    Availability High

    Threat Intelligence

    EPSS 0.14% (49th percentile)
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NVD
6.1 medium
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Red Hat
6.1 medium
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SUSE
6.1 medium

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  • Snyk ID SNYK-UBUNTU1804-SYSTEMD-1290723
  • published 11 May 2021
  • disclosed 10 May 2021

How to fix?

Upgrade Ubuntu:18.04 systemd to version 237-3ubuntu10.49 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream systemd package and not the systemd package as distributed by Ubuntu. See How to fix? for Ubuntu:18.04 relevant fixed versions and status.

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.