Home/CVE/Envoy is an open source edge and service proxy, designed for cloud-native applications. Envoy's tls allows re-use when s
CVE

CVE-2022-21654

Envoy is an open source edge and service proxy, designed for cloud-native applications. Envoy's tls allows re-use when s

Envoy is an open source edge and service proxy, designed for cloud-native applications. Envoy's tls allows re-use when some cert validation settings have changed from their default configuration. The only workaround for this issue is to ensure that default tls settings are used.

Users are advised to upgrade.

HIGH · CVSS 7.4 EPSS 0.0006
Schedule remediation
  • CVSS base score ≥ 7.0
Sigma rules0 YARA rules0
⬡

Weakness Classification

CWE-295Improper Certificate Validation
▤

Affected Products & Versions

4
envoyproxy envoy>= 1.7.0 and < 1.18.6
envoyproxy envoy>= 1.19.0 and < 1.19.3
envoyproxy envoy>= 1.20.0 and < 1.20.2
envoyproxy envoy>= 1.21.0 and < 1.21.1
▣

Scoring & Timeline

7.4
HIGH · CVSS v3.1 · security-advisories@github.com
View on NVD
Attack Vector
Network Adjacent Local Physical
Attack Complexity
Low High
Privileges Required
None Low High
User Interaction
None Required
Scope
Unchanged Changed
Confidentiality
None Low High
Integrity
None Low High
Availability
None Low High
Published to NVD22 Feb 2022 · 11:15 PM
CVSS VectorCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N
SSVC triage · cisa-vulnrichment
Exploitation
none
Automatable
no
Technical impact
total
SSVC asks the questions that actually drive patch urgency: is it being exploited, can attacks be automated, and how total is the impact.
⚑

Vendor Advisories

2
rhsaRHSA-2022:1276Important
rhsaRHSA-2022:1275Important
🔗

References & Sources

2
Source URLs (vendor pages, mailing lists, write-ups). Exploit/PoC links are in their own section above to avoid duplication.
https://github.com/envoyproxy/envoy/commit/e9f936d85dc1edc34fabd0a1725ec180f2316353PatchThird Party Advisory
https://github.com/envoyproxy/envoy/security/advisories/GHSA-5j4x-g36v-m283Issue TrackingThird Party Advisory
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