Red Hat Enterprise Linux (libeconf): Schwachstelle ermöglicht Denial of Service
WID-SEC-2023-1936 · first 02.08.2023 · updated 03.06.2026 · CVSS 6,5
What it is about
Red Hat Enterprise Linux (RHEL) ist eine populäre Linux-Distribution. Ein entfernter, anonymer Angreifer kann eine Schwachstelle in Red Hat Enterprise Linux ausnutzen, um einen Denial of Service Angriff durchzuführen.
Under what conditions?
Over the network and without logging in. This is the most dangerous combination: attackers can scan reachable devices automatically.
What can happen in the worst case
An attacker could use the vulnerability to
- einen Denial of Service Angriff durchzuführen
Am I affected?
Affected according to the BSI:
- Debian Linux
- Fedora Linux
- Ubuntu Linux
- SUSE Linux
- Oracle Linux
- Red Hat Enterprise Linux 9
The installed version is usually shown under “Help → About” or in the device’s admin interface.
What helps?
Install the updates provided by the vendor; details in the sources below.
Is the vulnerability already being exploited?
None of the CVEs is in the CISA catalogue of exploited vulnerabilities. That does not mean there are no attacks, only that none are documented.
Information and sources
- Original BSI advisory (WID)
- Red Hat Security Advisory - RHSA-2023:4347 vom 2023-08-01 access.redhat.com
- Proof of Concept (PoC) raw.githubusercontent.com
- Proof of Concept (PoC) github.com
- Oracle Linux Security Advisory ELSA-2023-4347 vom 2023-08-10 oss.oracle.com
- Fedora Security Advisory FEDORA-2023-6432BB65AE vom 2023-08-29 bodhi.fedoraproject.org
- Fedora Security Advisory FEDORA-2023-52B5309835 vom 2023-08-29 bodhi.fedoraproject.org
- Fedora Security Advisory FEDORA-2023-86B710BB4F vom 2023-08-29 bodhi.fedoraproject.org
- Fedora Security Advisory FEDORA-2023-B4B77F950C vom 2023-08-29 bodhi.fedoraproject.org
- SUSE Security Update SUSE-SU-2023:3639-1 vom 2023-09-18 lists.suse.com
- Debian Security Advisory DLA-4164 vom 2025-05-13 lists.debian.org
- Ubuntu Security Notice USN-8368-1 vom 2026-06-02 ubuntu.com
CVE: CVE-2023-22652
Source: BSI warning and information service (CERT-Bund); CISA. The assessment of the conditions is my reading of the BSI text; the external pages are in their original language.