cve-2021-43824
Vulnerability from cvelistv5
Published
2022-02-22 22:15
Modified
2024-08-04 04:03
Severity ?
7.5 (High) - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Summary
Envoy is an open source edge and service proxy, designed for cloud-native applications. In affected versions a crafted request crashes Envoy when a CONNECT request is sent to JWT filter configured with regex match. This provides a denial of service attack vector. The only workaround is to not use regex in the JWT filter. Users are advised to upgrade.
References
security-advisories@github.comhttps://github.com/envoyproxy/envoy/commit/9371333230b1a6e1be2eccf4868771e11af6253aPatch, Third Party Advisory
security-advisories@github.comhttps://github.com/envoyproxy/envoy/security/advisories/GHSA-vj5m-rch8-5r2pIssue Tracking, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://github.com/envoyproxy/envoy/commit/9371333230b1a6e1be2eccf4868771e11af6253aPatch, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://github.com/envoyproxy/envoy/security/advisories/GHSA-vj5m-rch8-5r2pIssue Tracking, Third Party Advisory
Impacted products
Vendor Product Version
envoyproxy envoy Version: >= 1.20.0, < 1.20.2
Version: >= 1.19.0, < 1.19.3
Version: < 1.18.6
Version: >= 1.21.0, < 1.21.1
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   },
}


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