CVE-2023-26604 Affecting systemd-resolved package, versions <0:219-78.el7_9.11


Severity

Recommended
medium

Based on Red Hat Enterprise Linux security rating.

Threat Intelligence

Exploit Maturity
Mature
EPSS
0.05% (19th percentile)

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  • Snyk IDSNYK-RHEL7-SYSTEMDRESOLVED-8168326
  • published8 Oct 2024
  • disclosed3 Mar 2023

Introduced: 3 Mar 2023

CVE-2023-26604  (opens in a new tab)

How to fix?

Upgrade RHEL:7 systemd-resolved to version 0:219-78.el7_9.11 or higher.
This issue was patched in RHSA-2024:7705.

NVD Description

Note: Versions mentioned in the description apply only to the upstream systemd-resolved package and not the systemd-resolved package as distributed by RHEL. See How to fix? for RHEL:7 relevant fixed versions and status.

systemd before 247 does not adequately block local privilege escalation for some Sudo configurations, e.g., plausible sudoers files in which the "systemctl status" command may be executed. Specifically, systemd does not set LESSSECURE to 1, and thus other programs may be launched from the less program. This presents a substantial security risk when running systemctl from Sudo, because less executes as root when the terminal size is too small to show the complete systemctl output.

CVSS Scores

version 3.1