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Use After Free Affecting systemd package, versions <241-7~deb10u4

0.0
high

Snyk CVSS

    Attack Complexity Low
    Confidentiality High
    Integrity High
    Availability High

    Threat Intelligence

    EPSS 0.05% (21st percentile)
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NVD
7.8 high
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SUSE
7.8 high
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Red Hat
7.8 high

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  • Snyk ID SNYK-DEBIAN10-SYSTEMD-546475
  • published 5 Feb 2020
  • disclosed 31 Mar 2020
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Introduced: 5 Feb 2020

CVE-2020-1712 Open this link in a new tab
CWE-416 Open this link in a new tab

How to fix?

Upgrade Debian:10 systemd to version 241-7~deb10u4 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 Debian. See How to fix? for Debian:10 relevant fixed versions and status.

A heap use-after-free vulnerability was found in systemd before version v245-rc1, where asynchronous Polkit queries are performed while handling dbus messages. A local unprivileged attacker can abuse this flaw to crash systemd services or potentially execute code and elevate their privileges, by sending specially crafted dbus messages.