Vulnerability Description
Envoy is a cloud-native high-performance edge/middle/service proxy. In versions prior to 1.22.1 if Envoy attempts to send an internal redirect of an HTTP request consisting of more than HTTP headers, there’s a lifetime bug which can be triggered. If while replaying the request Envoy sends a local reply when the redirect headers are processed, the downstream state indicates that the downstream stream is not complete. On sending the local reply, Envoy will attempt to reset the upstream stream, but as it is actually complete, and deleted, this result in a use-after-free. Users are advised to upgrade. Users unable to upgrade are advised to disable internal redirects if crashes are observed.
CVSS Score
HIGH
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Envoyproxy | Envoy | < 1.22.1 |
Related Weaknesses (CWE)
References
- https://github.com/envoyproxy/envoy/commit/fe7c69c248f4fe5a9080c7ccb35275b5218bbPatchThird Party Advisory
- https://github.com/envoyproxy/envoy/security/advisories/GHSA-rm2p-qvf6-pvr6Third Party Advisory
- https://github.com/envoyproxy/envoy/commit/fe7c69c248f4fe5a9080c7ccb35275b5218bbPatchThird Party Advisory
- https://github.com/envoyproxy/envoy/security/advisories/GHSA-rm2p-qvf6-pvr6Third Party Advisory
FAQ
What is CVE-2022-29227?
CVE-2022-29227 is a vulnerability with a CVSS score of 7.5 (HIGH). Envoy is a cloud-native high-performance edge/middle/service proxy. In versions prior to 1.22.1 if Envoy attempts to send an internal redirect of an HTTP request consisting of more than HTTP headers, ...
How severe is CVE-2022-29227?
CVE-2022-29227 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-2022-29227?
Check the references section above for vendor advisories and patch information. Affected products include: Envoyproxy Envoy.