CVE-2023-7008 Systemd-resolved: unsigned name response in signed zone is not refused when dnssec=yes
Medium 5.9
Published
Updated
Check this codebase for CVE-2023-7008 and fix it if it is affected.
What it is: CVE-2023-7008 is a medium-severity vulnerability in Systemd Project Systemd, published on 23 Dec 2023. An attacker can exploit it over the internet without logging in, with no action from the victim.
Exploitation: There is no known exploitation of CVE-2023-7008 in the wild and no public exploit code.
Affected product: Systemd Project Systemd. No package-level version data is available, so check the vendor advisory linked from the reference page.
Task:
1. Search the dependency manifests and lockfiles (for example package.json, package-lock.json, requirements.txt, poetry.lock, uv.lock, pom.xml, build.gradle, go.mod, Cargo.lock, Gemfile.lock) and any Dockerfiles for the affected packages, including transitive dependencies.
2. If an affected version is in use, upgrade it to the fixed version for its release line with the project's package manager, so the lockfile is regenerated. Prefer the smallest upgrade that fixes it.
3. If there is no fix, or the upgrade would break the build, do not guess: explain the risk and the safest workaround instead.
4. Run the tests and summarise what changed and why.
5. If nothing in the project is affected, say so and change nothing.
Reference: https://insights.sbomify.com/CVE-2023-7008/ (Markdown: https://insights.sbomify.com/CVE-2023-7008/index.md)
Attackers can bypass DNSSEC validation to manipulate DNS records, affecting Linux systems using systemd-resolved with DNSSEC enabled.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2023-7008?
CVE-2023-7008 is a medium-severity vulnerability in Systemd Project Systemd, published on 23 Dec 2023. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official 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.
Weakness: CWE-300
Which versions are affected by CVE-2023-7008?
It affects 1 product.
Linux distribution packages (40)
systemd AlmaLinux:8 | All versions | 239-82.el8 |
systemd-container AlmaLinux:8 | All versions | 239-82.el8 |
systemd-devel AlmaLinux:8 | All versions | 239-82.el8 |
systemd-journal-remote AlmaLinux:8 | All versions | 239-82.el8 |
systemd-libs AlmaLinux:8 | All versions | 239-82.el8 |
systemd-pam AlmaLinux:8 | All versions | 239-82.el8 |
systemd-tests AlmaLinux:8 | All versions | 239-82.el8 |
systemd-udev AlmaLinux:8 | All versions | 239-82.el8 |
rhel-net-naming-sysattrs AlmaLinux:9 | All versions | 252-32.el9_4.alma.1 |
systemd AlmaLinux:9 | All versions | 252-32.el9_4.alma.1 |
systemd-boot-unsigned AlmaLinux:9 | All versions | 252-32.el9_4.alma.1 |
systemd-container AlmaLinux:9 | All versions | 252-32.el9_4.alma.1 |
systemd-devel AlmaLinux:9 | All versions | 252-32.el9_4.alma.1 |
systemd-journal-remote AlmaLinux:9 | All versions | 252-32.el9_4.alma.1 |
systemd-libs AlmaLinux:9 | All versions | 252-32.el9_4.alma.1 |
systemd-oomd AlmaLinux:9 | All versions | 252-32.el9_4.alma.1 |
systemd-pam AlmaLinux:9 | All versions | 252-32.el9_4.alma.1 |
systemd-resolved AlmaLinux:9 | All versions | 252-32.el9_4.alma.1 |
systemd-rpm-macros AlmaLinux:9 | All versions | 252-32.el9_4.alma.1 |
systemd-udev AlmaLinux:9 | All versions | 252-32.el9_4.alma.1 |
systemd Red Hat:enterprise_linux:8::baseos | All versions | 0:239-82.el8 |
systemd-container Red Hat:enterprise_linux:8::baseos | All versions | 0:239-82.el8 |
systemd-container-debuginfo Red Hat:enterprise_linux:8::baseos | All versions | 0:239-82.el8 |
systemd-debuginfo Red Hat:enterprise_linux:8::baseos | All versions | 0:239-82.el8 |
systemd-debugsource Red Hat:enterprise_linux:8::baseos | All versions | 0:239-82.el8 |
systemd-devel Red Hat:enterprise_linux:8::baseos | All versions | 0:239-82.el8 |
systemd-journal-remote Red Hat:enterprise_linux:8::baseos | All versions | 0:239-82.el8 |
systemd-journal-remote-debuginfo Red Hat:enterprise_linux:8::baseos | All versions | 0:239-82.el8 |
systemd-libs Red Hat:enterprise_linux:8::baseos | All versions | 0:239-82.el8 |
systemd-libs-debuginfo Red Hat:enterprise_linux:8::baseos | All versions | 0:239-82.el8 |
systemd-pam Red Hat:enterprise_linux:8::baseos | All versions | 0:239-82.el8 |
systemd-pam-debuginfo Red Hat:enterprise_linux:8::baseos | All versions | 0:239-82.el8 |
systemd-tests Red Hat:enterprise_linux:8::baseos | All versions | 0:239-82.el8 |
systemd-tests-debuginfo Red Hat:enterprise_linux:8::baseos | All versions | 0:239-82.el8 |
systemd-udev Red Hat:enterprise_linux:8::baseos | All versions | 0:239-82.el8 |
systemd-udev-debuginfo Red Hat:enterprise_linux:8::baseos | All versions | 0:239-82.el8 |
systemd-boot-unsigned-debuginfo Red Hat:enterprise_linux:9::appstream | All versions | 0:252-32.el9_4 |
systemd-container-debuginfo Red Hat:enterprise_linux:9::appstream | All versions | 0:252-32.el9_4 |
systemd-debuginfo Red Hat:enterprise_linux:9::appstream | All versions | 0:252-32.el9_4 |
systemd-debugsource Red Hat:enterprise_linux:9::appstream | All versions | 0:252-32.el9_4 |
Products include Systemd Project Systemd.
How do I fix CVE-2023-7008?
Apply the vendor's patch.
Is CVE-2023-7008 being exploited?
There is no known exploitation of CVE-2023-7008 in the wild and no public exploit code.
Other vulnerabilities in Systemd Project Systemd
Sources
Also known as ALSA-2024:2463, ALSA-2024:3203, AZL-32270, AZL-32271, AZL-35291, AZL-43171 and 14 more.