{"schemaVersion":3,"id":"CVE-2019-11727","aliases":["UBUNTU-CVE-2019-11727","DEBIAN-CVE-2019-11727"],"status":"published","duplicateOf":null,"title":null,"description":"A vulnerability exists where it possible to force Network Security Services (NSS) to sign CertificateVerify with PKCS#1 v1.5 signatures when those are the only ones advertised by server in CertificateRequest in TLS 1.3. PKCS#1 v1.5 signatures should not be used for TLS 1.3 messages. 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