CoreDNS: Mehrere Schwachstellen ermöglichen Denial of Service
WID-SEC-2022-0461 · first 24.06.2022 · updated 09.10.2026 · CVSS 7,5
What it is about
CoreDNS ist ein DNS server. Ein entfernter, anonymer Angreifer kann mehrere Schwachstellen in CoreDNS 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:
- Amazon Linux 2
- Red Hat Enterprise Linux
- SUSE Linux
- Oracle Linux
- Open Source CoreDNS <1.9.3
- JFrog Artifactory <7.46.3
- SUSE openSUSE
The installed version is usually shown under “Help → About” or in the device’s admin interface.
What helps?
Update to at least:
- Open Source CoreDNS 1.9.3
- JFrog Artifactory 7.46.3
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)
- CoreDNS Release Notes vom 2022-06-23 coredns.io
- Red Hat Security Advisory RHSA-2022:5069 vom 2022-08-10 access.redhat.com
- Red Hat Security Advisory RHSA-2022:5068 vom 2022-08-10 access.redhat.com
- SUSE Security Update SUSE-SU-2022:2834-1 vom 2022-08-17 lists.suse.com
- SUSE Security Update SUSE-SU-2022:2839-1 vom 2022-08-18 lists.suse.com
- SUSE Security Update SUSE-SU-2022:2839-2 vom 2022-09-01 lists.suse.com
- Red Hat Security Advisory RHSA-2022:6347 vom 2022-09-06 access.redhat.com
- Amazon Linux Security Advisory ALAS-2022-133 vom 2022-09-29 alas.aws.amazon.com
- Amazon Linux Security Advisory ALAS-2022-1635 vom 2022-09-29 alas.aws.amazon.com
- JFrog Fixed Security Vulnerabilities www.jfrog.com
- Amazon Linux Security Advisory ALAS2DOCKER-2022-020 vom 2022-10-14 alas.aws.amazon.com
- Amazon Linux Security Advisory ALAS2-2022-1864 vom 2022-10-21 alas.aws.amazon.com
- Amazon Linux Security Advisory ALAS2-2022-1859 vom 2022-10-21 alas.aws.amazon.com
- Amazon Linux Security Advisory ALAS2-2022-1865 vom 2022-10-21 alas.aws.amazon.com
- Amazon Linux Security Advisory ALAS2-2022-1861 vom 2022-10-21 alas.aws.amazon.com
- Amazon Linux Security Advisory ALAS2-2022-1860 vom 2022-10-21 alas.aws.amazon.com
- Amazon Linux Security Advisory ALAS2-2022-1863 vom 2022-10-21 alas.aws.amazon.com
- Amazon Linux Security Advisory ALAS2-2022-1858 vom 2022-10-21 alas.aws.amazon.com
- Amazon Linux Security Advisory ALAS2-2022-1862 vom 2022-10-21 alas.aws.amazon.com
- Oracle Linux Security Advisory ELSA-2022-7469 vom 2022-11-15 linux.oracle.com
- Red Hat Security Advisory RHSA-2022:8008 vom 2022-11-15 access.redhat.com
- Red Hat Security Advisory RHSA-2022:7954 vom 2022-11-15 access.redhat.com
- Red Hat Security Advisory RHSA-2022:8634 vom 2022-11-28 access.redhat.com
- SUSE Security Update SUSE-SU-2022:4409-1 vom 2022-12-12 lists.suse.com
- Red Hat Security Advisory RHSA-2022:8932 vom 2022-12-12 access.redhat.com
and 10 more sources in the original advisory
CVE: CVE-2022-27191, CVE-2022-28948
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.