{"cve":"CVE-2019-1559","nvd":{"published":"2019-02-27T23:29:00.277","modified":"2026-06-17T02:28:44.967","status":"Modified","description":"If an application encounters a fatal protocol error and then calls SSL_shutdown() twice (once to send a close_notify, and once to receive one) then OpenSSL can respond differently to the calling application if a 0 byte record is received with invalid padding compared to if a 0 byte record is received with an invalid MAC. If the application then behaves differently based on that in a way that is detectable to the remote peer, then this amounts to a padding oracle that could be used to decrypt data. In order for this to be exploitable \"non-stitched\" ciphersuites must be in use. Stitched ciphersuites are optimised implementations of certain commonly used ciphersuites. Also the application must call SSL_shutdown() twice even if a protocol error has occurred (applications should not do this but some do anyway). Fixed in OpenSSL 1.0.2r (Affected 1.0.2-1.0.2q).","cvss_v4":null,"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N","score":5.9},"cwes":["CWE-203"],"references":["http://lists.opensuse.org/opensuse-security-announce/2019-03/msg00041.html","http://lists.opensuse.org/opensuse-security-announce/2019-04/msg00019.html","http://lists.opensuse.org/opensuse-security-announce/2019-04/msg00046.html","http://lists.opensuse.org/opensuse-security-announce/2019-04/msg00047.html","http://lists.opensuse.org/opensuse-security-announce/2019-05/msg00049.html"],"products":["canonical:ubuntu_linux","debian:debian_linux","f5:big-ip_access_policy_manager","f5:big-ip_advanced_firewall_manager","f5:big-ip_analytics","f5:big-ip_application_acceleration_manager","f5:big-ip_application_security_manager","f5:big-ip_domain_name_system","f5:big-ip_edge_gateway","f5:big-ip_fraud_protection_service","f5:big-ip_global_traffic_manager","f5:big-ip_link_controller","f5:big-ip_local_traffic_manager","f5:big-ip_policy_enforcement_manager","f5:big-ip_webaccelerator","f5:big-iq_centralized_management","f5:traffix_signaling_delivery_controller","fedoraproject:fedora","mcafee:agent","mcafee:data_exchange_layer","mcafee:threat_intelligence_exchange_server","mcafee:web_gateway","netapp:a220_firmware","netapp:a320_firmware","netapp:a800_firmware","netapp:active_iq_unified_manager","netapp:altavault","netapp:c190_firmware","netapp:cloud_backup","netapp:clustered_data_ontap_antivirus_connector","netapp:cn1610_firmware","netapp:element_software","netapp:fas2720_firmware","netapp:fas2750_firmware","netapp:hci_compute_node","netapp:hci_management_node","netapp:hyper_converged_infrastructure","netapp:oncommand_insight","netapp:oncommand_unified_manager","netapp:oncommand_unified_manager_core_package","netapp:oncommand_workflow_automation","netapp:ontap_select_deploy","netapp:ontap_select_deploy_administration_utility","netapp:santricity_smi-s_provider","netapp:service_processor","netapp:smi-s_provider","netapp:snapcenter","netapp:snapdrive","netapp:snapprotect","netapp:solidfire"],"source":"nvd","synced_at":"2026-10-19T20:54:46.948512734+00:00"},"epss":{"cve":"CVE-2019-1559","score":0.17139,"percentile":0.97088,"date":"2026-10-31"},"kev":null,"osv":[],"attribution":["This product uses the NVD API but is not endorsed or certified by the NVD.","EPSS scores: FIRST Exploit Prediction Scoring System, https://www.first.org/epss","Known exploited vulnerabilities: CISA Known Exploited Vulnerabilities Catalog, https://www.cisa.gov/known-exploited-vulnerabilities-catalog","Package advisories: OSV (https://osv.dev), from the GitHub Advisory Database, PyPA, Go, RustSec and other ecosystem databases, under CC-BY 4.0 or CC0","CVE records: the CVE Program's CVE List (https://www.cve.org), under its terms of use (https://www.cve.org/Legal/TermsOfUse). CVE is a registered trademark of The MITRE Corporation; this product is not affiliated with the CVE Program."]}