CVE-2022-36440
HIGHCVSS 7.5/10EPSS 1.62%
Last modified
CVE-2022-36440 is a high-severity vulnerability rated 7.5/10 on the CVSS scale. A reachable assertion was found in Frrouting frr-bgpd 8.3.0 in the peek_for_as4_capability function. Attackers can maliciously construct BGP open packets and send them to BGP peers running frr-bgpd, resulting in DoS.. EPSS estimates a 1.62% chance of exploitation in the next 30 days.
Description
A reachable assertion was found in Frrouting frr-bgpd 8.3.0 in the peek_for_as4_capability function. Attackers can maliciously construct BGP open packets and send them to BGP peers running frr-bgpd, resulting in DoS.
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 | 8.3 |
| Fedoraproject | Fedora | 36 |
| Fedoraproject | Fedora | 37 |
| Fedoraproject | Fedora | 38 |
| Debian | Debian Linux | 10.0 |
| Debian | Debian Linux | 11.0 |
| Debian | Debian Linux | 12.0 |
References
- https://github.com/spwpun/pocsThird Party Advisory
- https://github.com/spwpun/pocs/blob/main/frr-bgpd.mdExploit, Third Party Advisory
- https://lists.debian.org/debian-lts-announce/2023/09/msg00020.htmlMailing List, Third Party Advisory
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/3HU4PKLUVB5CTMOVQ2GV33TNUNMJCBGD/Mailing List, Third Party Advisory
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/BBXEXL2ZQBWCBLNUP6P67FHECXQWSK3L/Mailing List, Third Party Advisory
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/GM66PNHGCXZU66LQCTP2FSJLFF6CVMSI/Mailing List, Third Party Advisory
- https://www.debian.org/security/2023/dsa-5495Third Party Advisory
- https://github.com/spwpun/pocsThird Party Advisory
- https://github.com/spwpun/pocs/blob/main/frr-bgpd.mdExploit, Third Party Advisory
- https://lists.debian.org/debian-lts-announce/2023/09/msg00020.htmlMailing List, Third Party Advisory
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/3HU4PKLUVB5CTMOVQ2GV33TNUNMJCBGD/Mailing List, Third Party Advisory
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/BBXEXL2ZQBWCBLNUP6P67FHECXQWSK3L/Mailing List, Third Party Advisory
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/GM66PNHGCXZU66LQCTP2FSJLFF6CVMSI/Mailing List, Third Party Advisory
- https://www.debian.org/security/2023/dsa-5495Third Party Advisory
Timeline
- Published
- Last Modified
- Status
- Modified
Frequently Asked Questions
What is CVE-2022-36440?
A reachable assertion was found in Frrouting frr-bgpd 8.3.0 in the peek_for_as4_capability function. Attackers can maliciously construct BGP open packets and send them to BGP peers running frr-bgpd, resulting in DoS.
How severe is CVE-2022-36440?
CVE-2022-36440 has a CVSS score of 7.5/10 (HIGH severity). The EPSS model estimates a 1.62% probability of exploitation in the next 30 days.
How do I fix CVE-2022-36440?
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-2022-36440?
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Scan your code nowSource: NVD / NIST