CVE-2024-23327
There are no known workarounds for this vulnerability.
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (0.69%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
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 3.1
- 7.5 HIGHCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
- EPSS
- 0.69% probability · 51th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-476
- Affected
- envoyproxy/envoy
- Source
- security-advisories@github.com
References
- https://github.com/envoyproxy/envoy/commit/63895ea8e3cca9c5d3ab4c5c128ed1369969d54aPatch, Third Party Advisory
- https://github.com/envoyproxy/envoy/security/advisories/GHSA-4h5x-x9vh-m29jThird Party Advisory
- https://github.com/envoyproxy/envoy/commit/63895ea8e3cca9c5d3ab4c5c128ed1369969d54aPatch, Third Party Advisory
- https://github.com/envoyproxy/envoy/security/advisories/GHSA-4h5x-x9vh-m29jThird Party Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.