{"schemaVersion":3,"id":"CVE-2021-32791","aliases":["UBUNTU-CVE-2021-32791","DEBIAN-CVE-2021-32791"],"status":"published","duplicateOf":null,"title":null,"description":"mod_auth_openidc is an authentication/authorization module for the Apache 2.x HTTP server that functions as an OpenID Connect Relying Party, authenticating users against an OpenID Connect Provider. In mod_auth_openidc before version 2.4.9, the AES GCM encryption in mod_auth_openidc uses a static IV and AAD. It is important to fix because this creates a static nonce and since aes-gcm is a stream cipher, this can lead to known cryptographic issues, since the same key is being reused. 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