CVE-2022-21656

{"cve": {"data_type": "CVE", "references": {"reference_data": [{"url": "https://github.com/envoyproxy/envoy/commit/bb95af848c939cfe5b5ee33c5b1770558077e64e", "name": "https://github.com/envoyproxy/envoy/commit/bb95af848c939cfe5b5ee33c5b1770558077e64e", "tags": [], "refsource": "MISC"}, {"url": "https://github.com/envoyproxy/envoy/security/advisories/GHSA-c9g7-xwcv-pjx2", "name": "https://github.com/envoyproxy/envoy/security/advisories/GHSA-c9g7-xwcv-pjx2", "tags": [], "refsource": "CONFIRM"}]}, "data_format": "MITRE", "description": {"description_data": [{"lang": "en", "value": "Envoy is an open source edge and service proxy, designed for cloud-native applications. The default_validator.cc implementation used to implement the default certificate validation routines has a \"type confusion\" bug when processing subjectAltNames. This processing allows, for example, an rfc822Name or uniformResourceIndicator to be authenticated as a domain name. This confusion allows for the bypassing of nameConstraints, as processed by the underlying OpenSSL/BoringSSL implementation, exposing the possibility of impersonation of arbitrary servers. As a result Envoy will trust upstream certificates that should not be trusted."}]}, "problemtype": {"problemtype_data": [{"description": [{"lang": "en", "value": "CWE-295"}]}]}, "data_version": "4.0", "CVE_data_meta": {"ID": "CVE-2022-21656", "ASSIGNER": "security-advisories@github.com"}}, "impact": {}, "publishedDate": "2022-02-22T23:15Z", "configurations": {"nodes": [], "CVE_data_version": "4.0"}, "lastModifiedDate": "2022-02-23T15:13Z"}