Vulnerability Description
Envoy is a high-performance edge/middle/service proxy. When PPv2 is enabled both on a listener and subsequent cluster, the Envoy instance will segfault when attempting to craft the upstream PPv2 header. This occurs when the downstream request has a command type of LOCAL and does not have the protocol block. This issue has been addressed in releases 1.29.1, 1.28.1, 1.27.3, and 1.26.7. Users are advised to upgrade. There are no known workarounds for this vulnerability.
CVSS Score
HIGH
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Envoyproxy | Envoy | >= 1.26.0, < 1.26.7 |
Related Weaknesses (CWE)
References
- https://github.com/envoyproxy/envoy/commit/63895ea8e3cca9c5d3ab4c5c128ed1369969dPatchThird Party Advisory
- https://github.com/envoyproxy/envoy/security/advisories/GHSA-4h5x-x9vh-m29jThird Party Advisory
- https://github.com/envoyproxy/envoy/commit/63895ea8e3cca9c5d3ab4c5c128ed1369969dPatchThird Party Advisory
- https://github.com/envoyproxy/envoy/security/advisories/GHSA-4h5x-x9vh-m29jThird Party Advisory
FAQ
What is CVE-2024-23327?
CVE-2024-23327 is a vulnerability with a CVSS score of 7.5 (HIGH). Envoy is a high-performance edge/middle/service proxy. When PPv2 is enabled both on a listener and subsequent cluster, the Envoy instance will segfault when attempting to craft the upstream PPv2 heade...
How severe is CVE-2024-23327?
CVE-2024-23327 has been rated HIGH with a CVSS base score of 7.5/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2024-23327?
Check the references section above for vendor advisories and patch information. Affected products include: Envoyproxy Envoy.