CVE-2023-38802
HIGHCVSS 7.5/10EPSS 1.44%
Last modified
CVE-2023-38802 is a high-severity vulnerability rated 7.5/10 on the CVSS scale. 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).. EPSS estimates a 1.44% chance of exploitation in the next 30 days.
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).
Metrics
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Weakness Enumeration
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Frrouting | Frrouting | >= 7.5.1, <= 9.0 |
| Pica8 | Picos | 4.3.3.2 |
| Debian | Debian Linux | 10.0 |
| Debian | Debian Linux | 11.0 |
| Debian | Debian Linux | 12.0 |
| Fedoraproject | Fedora | 37 |
| Fedoraproject | Fedora | 38 |
| Fedoraproject | Fedora | 39 |
References
- https://blog.benjojo.co.uk/post/bgp-path-attributes-grave-error-handlingExploit, Technical Description, Third Party Advisory
- https://lists.debian.org/debian-lts-announce/2023/09/msg00020.htmlMailing List, Third Party Advisory
- https://news.ycombinator.com/item?id=37305800Third Party Advisory
- https://www.debian.org/security/2023/dsa-5495Third Party Advisory
- https://blog.benjojo.co.uk/post/bgp-path-attributes-grave-error-handlingExploit, Technical Description, Third Party Advisory
- https://lists.debian.org/debian-lts-announce/2023/09/msg00020.htmlMailing List, Third Party Advisory
- https://news.ycombinator.com/item?id=37305800Third Party Advisory
- https://www.debian.org/security/2023/dsa-5495Third Party Advisory
Timeline
- Published
- Last Modified
- Status
- Modified
Frequently Asked Questions
What is CVE-2023-38802?
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).
How severe is CVE-2023-38802?
CVE-2023-38802 has a CVSS score of 7.5/10 (HIGH severity). The EPSS model estimates a 1.44% probability of exploitation in the next 30 days.
How do I fix CVE-2023-38802?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.
How Strix Helps
- How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
- Autonomous PentestingAI agents that find and validate exploitable vulnerabilities like this one across your applications.
- PR ReviewsPentest every pull request so vulnerable code is caught before it ships to production.
- AI Penetration TestingHow AI-driven penetration testing continuously covers your attack surface.
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Are you affected by CVE-2023-38802?
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