CVE-2024-23327
Last modified
CVE-2024-23327 is a high-severity vulnerability rated 7.5/10 on the CVSS scale. 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. EPSS estimates a 0.69% chance of exploitation in the next 30 days.
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.
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 |
|---|---|---|
| Envoyproxy | Envoy | >= 1.26.0, < 1.26.7 |
| Envoyproxy | Envoy | >= 1.27.0, < 1.27.3 |
| Envoyproxy | Envoy | >= 1.28.0, < 1.28.1 |
| Envoyproxy | Envoy | >= 1.29.0, < 1.29.1 |
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
Timeline
- Published
- Last Modified
- Status
- Modified
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