CVE-2023-38802 Denial of service in n/a
High 7.5
Published
Updated
Check this codebase for CVE-2023-38802 and fix it if it is affected.
What it is: CVE-2023-38802 is a high-severity denial of service vulnerability in Debian Debian Linux, published on 29 Aug 2023. An attacker can exploit it over the internet without logging in, with no action from the victim.
Exploitation: It is not confirmed as exploited in the wild, but public exploit code for CVE-2023-38802 exists.
Affected product: Debian Debian Linux. 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-2023-38802/ (Markdown: https://insights.sbomify.com/CVE-2023-38802/index.md)
Remote attackers can cause denial of service in FRRouting and Pica8 PICOS by sending crafted BGP updates with corrupted attributes.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2023-38802?
CVE-2023-38802 is a high-severity denial of service vulnerability in Debian Debian Linux, published on 29 Aug 2023. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
FRRouting FRR 7.5.1 through 9.0 and Pica8 PICOS 4.3.3.2 allow a remote attacker to cause a denial of service via a crafted BGP update with a corrupted attribute 23 (Tunnel Encapsulation).
Weakness: CWE-354
Which versions are affected by CVE-2023-38802?
It affects 4 products.
Linux distribution packages (40)
frr AlmaLinux:8 | All versions | 7.5.1-7.el8_8.2.alma.1 |
frr-selinux AlmaLinux:8 | All versions | 7.5.1-7.el8_8.2.alma.1 |
frr AlmaLinux:9 | All versions | 8.3.1-5.el9_2.2.alma |
frr-selinux AlmaLinux:9 | All versions | 8.3.1-5.el9_2.2.alma |
frr Red Hat:enterprise_linux:8::appstream | All versions | 0:7.5.1-7.el8_8.2 |
frr-debuginfo Red Hat:enterprise_linux:8::appstream | All versions | 0:7.5.1-7.el8_8.2 |
frr-debugsource Red Hat:enterprise_linux:8::appstream | All versions | 0:7.5.1-7.el8_8.2 |
frr-selinux Red Hat:enterprise_linux:8::appstream | All versions | 0:7.5.1-7.el8_8.2 |
frr Red Hat:enterprise_linux:9::appstream | All versions | 0:8.3.1-5.el9_2.2 |
frr-debuginfo Red Hat:enterprise_linux:9::appstream | All versions | 0:8.3.1-5.el9_2.2 |
frr-debugsource Red Hat:enterprise_linux:9::appstream | All versions | 0:8.3.1-5.el9_2.2 |
frr-selinux Red Hat:enterprise_linux:9::appstream | All versions | 0:8.3.1-5.el9_2.2 |
frr Red Hat:rhel_aus:8.2::appstream | All versions | 0:7.0-5.el8_2.1 |
frr-contrib Red Hat:rhel_aus:8.2::appstream | All versions | 0:7.0-5.el8_2.1 |
frr-debuginfo Red Hat:rhel_aus:8.2::appstream | All versions | 0:7.0-5.el8_2.1 |
frr-debugsource Red Hat:rhel_aus:8.2::appstream | All versions | 0:7.0-5.el8_2.1 |
frr Red Hat:rhel_aus:8.4::appstream | All versions | 0:7.5-4.el8_4.4 |
frr-debuginfo Red Hat:rhel_aus:8.4::appstream | All versions | 0:7.5-4.el8_4.4 |
frr-debugsource Red Hat:rhel_aus:8.4::appstream | All versions | 0:7.5-4.el8_4.4 |
frr Red Hat:rhel_e4s:8.1::appstream | All versions | 0:7.0-5.el8_1.1 |
frr-contrib Red Hat:rhel_e4s:8.1::appstream | All versions | 0:7.0-5.el8_1.1 |
frr-debuginfo Red Hat:rhel_e4s:8.1::appstream | All versions | 0:7.0-5.el8_1.1 |
frr-debugsource Red Hat:rhel_e4s:8.1::appstream | All versions | 0:7.0-5.el8_1.1 |
frr Red Hat:rhel_e4s:8.2::appstream | All versions | 0:7.0-5.el8_2.1 |
frr-contrib Red Hat:rhel_e4s:8.2::appstream | All versions | 0:7.0-5.el8_2.1 |
frr-debuginfo Red Hat:rhel_e4s:8.2::appstream | All versions | 0:7.0-5.el8_2.1 |
frr-debugsource Red Hat:rhel_e4s:8.2::appstream | All versions | 0:7.0-5.el8_2.1 |
frr Red Hat:rhel_e4s:8.4::appstream | All versions | 0:7.5-4.el8_4.4 |
frr-debuginfo Red Hat:rhel_e4s:8.4::appstream | All versions | 0:7.5-4.el8_4.4 |
frr-debugsource Red Hat:rhel_e4s:8.4::appstream | All versions | 0:7.5-4.el8_4.4 |
frr Red Hat:rhel_eus:8.6::appstream | All versions | 0:7.5-11.el8_6.2 |
frr-debuginfo Red Hat:rhel_eus:8.6::appstream | All versions | 0:7.5-11.el8_6.2 |
frr-debugsource Red Hat:rhel_eus:8.6::appstream | All versions | 0:7.5-11.el8_6.2 |
frr Red Hat:rhel_eus:9.0::appstream | All versions | 0:8.0-5.el9_0.1 |
frr-debuginfo Red Hat:rhel_eus:9.0::appstream | All versions | 0:8.0-5.el9_0.1 |
frr-debugsource Red Hat:rhel_eus:9.0::appstream | All versions | 0:8.0-5.el9_0.1 |
frr Red Hat:rhel_tus:8.2::appstream | All versions | 0:7.0-5.el8_2.1 |
frr-contrib Red Hat:rhel_tus:8.2::appstream | All versions | 0:7.0-5.el8_2.1 |
frr-debuginfo Red Hat:rhel_tus:8.2::appstream | All versions | 0:7.0-5.el8_2.1 |
frr-debugsource Red Hat:rhel_tus:8.2::appstream | All versions | 0:7.0-5.el8_2.1 |
Products include Debian Debian Linux, Fedoraproject Fedora, Frrouting Frrouting, Pica8 Picos.
How do I fix CVE-2023-38802?
Apply the vendor's patch.
Upgrade, then put limits on request size, rate and nesting depth so one client cannot exhaust the service. More about Denial of service.
Is CVE-2023-38802 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2023-38802 exists.
Other vulnerabilities in Debian Debian Linux
Sources
Also known as ALSA-2023:5194, ALSA-2023:5219, AZL-28614, DEBIAN-CVE-2023-38802, GHSA-xh4f-v933-c556, RHSA-2023:5194 and 8 more.