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CVE-2022-29227

HIGH
Published 2022-06-09T19:30:15.000Z
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CVSS Score

V3.1
7.5
/10
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Base Score Metrics
Exploitability: N/A Impact: N/A

EPSS Score

v2025.03.14
0.001
probability
of exploitation in the wild

There is a 0.1% chance that this vulnerability will be exploited in the wild within the next 30 days.

Updated: 2025-06-25
Exploit Probability
Percentile: 0.282
Higher than 28.2% of all CVEs

Attack Vector Metrics

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED

Impact Metrics

Confidentiality
NONE
Integrity
NONE
Availability
HIGH

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.

Available Exploits

No exploits available for this CVE.

Related News

No news articles found for this CVE.

Affected Products

envoyproxy

envoy

Affected Versions:

< 1.22.1

References

https://github.com/envoyproxy/envoy/security/advisories/GHSA-rm2p-qvf6-pvr6
https://github.com/envoyproxy/envoy/commit/fe7c69c248f4fe5a9080c7ccb35275b5218bb5ab
Published: 2022-06-09T19:30:15.000Z
Last Modified: 2025-04-23T18:17:37.517Z
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