CVE-2023-3899: Fedoraproject Fedora

High severity, CVSS 7.8. EPSS: 0.2% chance of exploitation in the next 30 days.

A vulnerability was found in subscription-manager that allows local privilege escalation due to inadequate authorization. The D-Bus interface com.redhat.RHSM1 exposes a significant number of methods to all users that could change the state of the registration. By using the com.redhat.RHSM1.Config.SetAll() method, a low-privileged local user could tamper with the state of the registration, by unregistering the system or by changing the current entitlements. This flaw allows an attacker to set arbitrary configuration directives for /etc/rhsm/rhsm.conf, which can be abused to cause a local privilege escalation to an unconfined root.

Affected products

  • Fedoraproject Fedora: version 37 only; version 38 only
  • Red Hat Enterprise Linux: version 8.0 only; version 9.0 only
  • Red Hat Enterprise Linux Desktop: version 7.0 only
  • Red Hat Enterprise Linux Eus: version 8.6 only; version 8.8 only; version 9.0 only; version 9.2 only
  • Red Hat Enterprise Linux For Arm 64: version 8.0 only; version 9.0 only; version 9.2 only
  • Red Hat Enterprise Linux For Arm 64 Eus: version 8.6 only; version 8.8 only; version 9.0 only; version 9.2 only
  • Red Hat Enterprise Linux For IBM Z Systems: version 7.0 only; version 8.0 only; version 9.0 only; version 9.2 only
  • Red Hat Enterprise Linux For IBM Z Systems Eus: version 8.6 only; version 8.8 only; version 9.0 only; version 9.2 only
  • Red Hat Enterprise Linux For Power Big Endian: version 7.0 only
  • Red Hat Enterprise Linux For Power Little Endian: version 7.0 only; version 8.0 only; version 9.0 only
  • Red Hat Enterprise Linux For Power Little Endian Eus: version 8.8 only; version 9.0 only; version 9.2 only
  • Red Hat Enterprise Linux For Scientific Computing: version 7.0 only
  • Red Hat Enterprise Linux Server: version 7.0 only
  • Red Hat Enterprise Linux Server Aus: version 8.2 only; version 8.4 only; version 8.6 only; version 9.2 only
  • Red Hat Enterprise Linux Server For Power Little Endian Update Services For SAP Solutions: version 8.1 only; version 8.2 only; version 8.4 only; version 8.6 only; version 8.8 only; version 9.0 only; …
  • Red Hat Enterprise Linux Server Tus: version 8.2 only; version 8.4 only; version 8.6 only; version 8.8 only
  • Red Hat Enterprise Linux Server Update Services For SAP Solutions: version 9.0 only; version 9.2 only
  • Red Hat Enterprise Linux Update Services For SAP Solutions: version 8.1 only; version 8.2 only; version 8.4 only; version 8.6 only; version 8.8 only
  • Red Hat Enterprise Linux Workstation: version 7.0 only
  • Red Hat Subscription-Manager: before 1.28.39 (fixed in 1.28.39); from 1.29.0, before 1.29.37 (fixed in 1.29.37)

Published 2023-08-23. Last modified 2026-06-17.