CVE-2024-23327

Crash in proxy protocol when command type of LOCAL in Envoy

CVSS 7.5 HIGHEPSS 0.7%CWE-476

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:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Affected products

envoyproxy · envoy

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References

https://github.com/envoyproxy/envoy/commit/63895ea8e3cca9c5d3ab4c5c128ed1369969d54a https://github.com/envoyproxy/envoy/security/advisories/GHSA-4h5x-x9vh-m29j