CVE-2023-7008

Systemd-resolved: unsigned name response in signed zone is not refused when dnssec=yes

Description

A vulnerability was found in systemd-resolved. This issue may allow systemd-resolved to accept records of DNSSEC-signed domains even when they have no signature, allowing man-in-the-middles (or the upstream DNS resolver) to manipulate records.

Remediation

Workaround:

  • Mitigation for this issue is either not available or the currently available options do not meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base or stability.

Category

5.9
CVSS
Severity: Medium
CVSS 3.1 •
EPSS 0.30%
Vendor Advisory redhat.com Vendor Advisory redhat.com Vendor Advisory redhat.com
Affected: Red Hat Red Hat Enterprise Linux 8
Affected: Red Hat Red Hat Enterprise Linux 9
Affected: Red Hat Red Hat Enterprise Linux 9
Affected: Red Hat Cryostat 2
Published at:
Updated at:

References

Link Tags
https://access.redhat.com/errata/RHSA-2024:2463 vendor advisory
https://access.redhat.com/errata/RHSA-2024:3203 vendor advisory
https://access.redhat.com/security/cve/CVE-2023-7008 vdb entry vendor advisory
https://bugzilla.redhat.com/show_bug.cgi?id=2222261 issue tracking
https://bugzilla.redhat.com/show_bug.cgi?id=2222672 issue tracking
https://github.com/systemd/systemd/issues/25676 issue tracking
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/4GMDEG5PKONWNHOEYSUDRT6JEOISRMN2/
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/QHNBXGKJWISJETTTDTZKTBFIBJUOSLKL/
https://security.netapp.com/advisory/ntap-20241122-0004/

Frequently Asked Questions

What is the severity of CVE-2023-7008?
CVE-2023-7008 has been scored as a medium severity vulnerability.
How to fix CVE-2023-7008?
As a workaround for remediating CVE-2023-7008: Mitigation for this issue is either not available or the currently available options do not meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base or stability.
Is CVE-2023-7008 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2023-7008 is being actively exploited. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2023-7008?
CVE-2023-7008 affects Red Hat Red Hat Enterprise Linux 8, Red Hat Red Hat Enterprise Linux 9, Red Hat Red Hat Enterprise Linux 9, Red Hat Cryostat 2.
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