Use After Free Affecting udev package, versions <234-24.39.1


Severity

Recommended
0.0
high
0
10

Based on SUSE Linux Enterprise Server security rating.

Threat Intelligence

EPSS
0.05% (26th percentile)

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  • Snyk IDSNYK-SLES150-UDEV-2717457
  • published14 Apr 2022
  • disclosed6 Feb 2020

Introduced: 6 Feb 2020

CVE-2020-1712  (opens in a new tab)
CWE-416  (opens in a new tab)

How to fix?

Upgrade SLES:15.0 udev to version 234-24.39.1 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream udev package and not the udev package as distributed by SLES. See How to fix? for SLES:15.0 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.

CVSS Base Scores

version 3.1