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Fencer Vulns
medium 5.9

CVE-2023-7008 json

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

published 2023-12-23 2 y ago modified 2026-11-02 6 d ago also EUVD-2023-59200

cvss
5.9
version 3.1, CNA
cisa kev
Not listed
not in CISA's catalog
epss
0.8%
EPSS 0.8% chance of exploitation in 30 days, percentile 58%
public exploits
0
none known

Summary

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.

Patch / fix

  • Red Hat Red Hat Enterprise Linux 8 0:239-82.el8
  • Red Hat Red Hat Enterprise Linux 9 0:252-32.el9_4
  • Siemens SIMATIC S7-1500 TM MFP - GNU/Linux subsystem V1.1
  • systemd Debian 12 252.21-1~deb12u1
  • systemd Debian 14, Debian 13 255.1-3

debian advisories DEBIAN-CVE-2023-7008

  • systemd Ubuntu 22.04 LTS 249.11-0ubuntu3.21

ubuntu advisories UBUNTU-CVE-2023-7008

Ubuntu security data © Canonical Ltd., from https://github.com/canonical/ubuntu-security-notices via OSV; changed: normalised to fixed package versions per release. CC BY-SA 4.0

  • systemd RHEL 8 239-82.el8
  • systemd-pam RHEL 8 239-82.el8
  • systemd-libs RHEL 8 239-82.el8
  • systemd-udev RHEL 8 239-82.el8
  • systemd-tests RHEL 8 239-82.el8
  • systemd-container RHEL 8 239-82.el8
  • systemd-journal-remote RHEL 8 239-82.el8
  • systemd RHEL 9 252-32.el9_4

red hat advisories RHSA-2024:3203RHSA-2024:2463

  • systemd SLE Module for Package Hub 15 SP5, SLE Module for Basesystem 15 SP5, SLE Micro 5.5 +4 more 249.17-150400.8.43.1

suse advisories SUSE-SU-2024:3149-1

  • systemd openSUSE Tumbleweed 254.8-4.1

opensuse advisories openSUSE-SU-2024:13665-1

  • systemd AlmaLinux 8 239-82.el8
  • systemd-pam AlmaLinux 8 239-82.el8
  • systemd-libs AlmaLinux 8 239-82.el8
  • systemd-udev AlmaLinux 8 239-82.el8
  • systemd-tests AlmaLinux 8 239-82.el8
  • systemd-container AlmaLinux 8 239-82.el8
  • systemd-journal-remote AlmaLinux 8 239-82.el8
  • systemd AlmaLinux 9 252-32.el9_4.alma.1

almalinux advisories ALSA-2024:3203ALSA-2024:2463

  • systemd Rocky Linux 8 239-82.el8
  • systemd Rocky Linux 9 252-32.el9_4

rocky linux advisories RLSA-2024:3203RLSA-2024:2463

  • systemd CBL-Mariner 2.0 250.3-22
  • systemd-bootstrap CBL-Mariner 2.0 250.3-13
  • systemd-bootstrap Azure Linux 3.0 250.3-18
  • systemd Azure Linux 3.0 255-20

azure linux advisories AZL-32270AZL-32271AZL-35291AZL-43171

Azure Linux vulnerability data, Copyright (c) Microsoft Corporation, from https://github.com/microsoft/AzureLinuxVulnerabilityData via OSV, under the MIT licence; changed: normalised to fixed package versions per release. MIT

Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

red hat product security vex CVE-2023-7008 updated cvss 5.9

systemd-resolved: Unsigned name response in signed zone is not refused when DNSSEC=yes

  • Red Hat Enterprise Linux AppStream (v. 9) systemd-journal-remote 252-32.el9_4
    fixed: vendor fix RHSA-2024:2463
  • Red Hat Enterprise Linux BaseOS (v. 8) systemd 239-82.el8, systemd-pam 239-82.el8, systemd-libs 239-82.el8, systemd-udev 239-82.el8, systemd-tests 239-82.el8, systemd-container 239-82.el8, +1 more
    fixed: vendor fix RHSA-2024:3203
  • Red Hat Enterprise Linux BaseOS (v. 9) systemd 252-32.el9_4, systemd-pam 252-32.el9_4, systemd-libs 252-32.el9_4, systemd-oomd 252-32.el9_4, systemd-udev 252-32.el9_4, systemd-resolved 252-32.el9_4, +3 more Red Hat Enterprise Linux CRB (v. 9) systemd-boot-unsigned 252-32.el9_4
    fixed: vendor fix RHSA-2024:2463
  • Red Hat Cryostat 2 systemd
    not affected: vulnerable code not present

Red Hat CSAF VEX © Red Hat, Inc., from https://security.access.redhat.com/data/csaf/v2/vex/; changed: reduced to product statuses and remediations. CC BY 4.0 · csaf

cisa ICSA-23-166-11 updated cvss 5.9

Siemens SIMATIC S7-1500 TM MFP Linux Kernel

Facts from CISA's republication of the vendor's own advisory (CSAF); the linked advisory is the authoritative source. CISA notification · csaf

CISA SSVC

Exploitation
none
Automatable
no
Technical impact
partial
Assessed
6 d ago

Exploit prediction

0.84% chance of exploitation in the next 30 days, higher than 58% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by version score vector
CNA 3.1 5.9 CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:N
NVD 3.1 5.9 CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:N

Affected products

  • Red Hat Red Hat Enterprise Linux 8
  • Red Hat Red Hat Enterprise Linux 9
  • Red Hat Cryostat 2
  • Siemens SIMATIC S7-1500 TM MFP - GNU/Linux subsystem

Classification

Weakness
  • CWE-300 Channel Accessible by Non-Endpoint

References

Sources

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.