Vulnerability Database

328,409

Total vulnerabilities in the database

CVE-2019-1559

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).

  • Published: Feb 27, 2019
  • Updated: Nov 9, 2025
  • CVE: CVE-2019-1559
  • Severity: Medium
  • Exploit:

CVSS v3:

  • Severity: Medium
  • Score: 5.9
  • AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N

CVSS v2:

  • Severity: Low
  • Score: 4.3
  • AV:N/AC:M/Au:N/C:P/I:N/A:N

CWEs:

Software From Fixed in
openssl / openssl 1.0.2 1.0.2r
canonical / ubuntu_linux 18.04 18.04.x
canonical / ubuntu_linux 18.10 18.10.x
canonical / ubuntu_linux 16.04 16.04.x
debian / debian_linux 8.0 8.0.x
debian / debian_linux 9.0 9.0.x
netapp / storagegrid 9.0.0 9.0.4.x
netapp / active_iq_unified_manager 7.3 7.3.x
netapp / active_iq_unified_manager 9.5 9.5.x
f5 / traffix_signaling_delivery_controller 5.0.0 5.1.0.x
f5 / traffix_signaling_delivery_controller 4.4.0 4.4.0.x
f5 / big-iq_centralized_management 6.0.0 6.1.0.x
f5 / big-ip_local_traffic_manager 12.1.0 12.1.5.x
f5 / big-ip_local_traffic_manager 13.0.0 13.1.3.x
f5 / big-ip_local_traffic_manager 14.0.0 14.1.2.x
f5 / big-ip_advanced_firewall_manager 12.1.0 12.1.5.x
f5 / big-ip_advanced_firewall_manager 13.0.0 13.1.3.x
f5 / big-ip_advanced_firewall_manager 14.0.0 14.1.2.x
f5 / big-ip_application_acceleration_manager 12.1.0 12.1.5.x
f5 / big-ip_application_acceleration_manager 13.0.0 13.1.3.x
f5 / big-ip_application_acceleration_manager 14.0.0 14.1.2.x
f5 / big-ip_analytics 12.1.0 12.1.5.x
f5 / big-ip_analytics 13.0.0 13.1.3.x
f5 / big-ip_analytics 14.0.0 14.1.2.x
f5 / big-ip_access_policy_manager 12.1.0 12.1.5.x
f5 / big-ip_access_policy_manager 13.0.0 13.1.3.x
f5 / big-ip_access_policy_manager 14.0.0 14.1.2.x
f5 / big-ip_application_security_manager 12.1.0 12.1.5.x
f5 / big-ip_application_security_manager 13.0.0 13.1.3.x
f5 / big-ip_application_security_manager 14.0.0 14.1.2.x
f5 / big-ip_edge_gateway 12.1.0 12.1.5.x
f5 / big-ip_edge_gateway 13.0.0 13.1.3.x
f5 / big-ip_edge_gateway 14.0.0 14.1.2.x
f5 / big-ip_fraud_protection_service 12.1.0 12.1.5.x
f5 / big-ip_fraud_protection_service 13.0.0 13.1.3.x
f5 / big-ip_fraud_protection_service 14.0.0 14.1.2.x
f5 / big-ip_global_traffic_manager 12.1.0 12.1.5.x
f5 / big-ip_global_traffic_manager 13.0.0 13.1.3.x
f5 / big-ip_global_traffic_manager 14.0.0 14.1.2.x
f5 / big-ip_link_controller 12.1.0 12.1.5.x
f5 / big-ip_link_controller 13.0.0 13.1.3.x
f5 / big-ip_link_controller 14.0.0 14.1.2.x
f5 / big-ip_policy_enforcement_manager 12.1.0 12.1.5.x
f5 / big-ip_policy_enforcement_manager 13.0.0 13.1.3.x
f5 / big-ip_policy_enforcement_manager 14.0.0 14.1.2.x
f5 / big-ip_webaccelerator 12.1.0 12.1.5.x
f5 / big-ip_webaccelerator 13.0.0 13.1.3.x
f5 / big-ip_webaccelerator 14.0.0 14.1.2.x
f5 / big-ip_domain_name_system 12.1.0 12.1.5.x
f5 / big-ip_domain_name_system 13.0.0 13.1.3.x
f5 / big-ip_domain_name_system 14.0.0 14.1.2.x
f5 / big-ip_access_policy_manager 15.0.0 15.1.0.x
f5 / big-ip_advanced_firewall_manager 15.0.0 15.1.0.x
f5 / big-ip_analytics 15.0.0 15.1.0.x
f5 / big-ip_application_acceleration_manager 15.0.0 15.1.0.x
f5 / big-ip_application_security_manager 15.0.0 15.1.0.x
f5 / big-ip_domain_name_system 15.0.0 15.1.0.x
f5 / big-ip_edge_gateway 15.0.0 15.1.0.x
f5 / big-ip_fraud_protection_service 15.0.0 15.1.0.x
f5 / big-ip_global_traffic_manager 15.0.0 15.1.0.x
f5 / big-ip_link_controller 15.0.0 15.1.0.x
f5 / big-ip_local_traffic_manager 15.0.0 15.1.0.x
f5 / big-ip_policy_enforcement_manager 15.0.0 15.1.0.x
f5 / big-ip_webaccelerator 15.0.0 15.1.0.x
f5 / big-iq_centralized_management 7.0.0 7.1.0.x
tenable / nessus - 8.2.3.x
opensuse / leap 42.3 42.3.x
opensuse / leap 15.0 15.0.x
opensuse / leap 15.1 15.1.x
fedoraproject / fedora 29 29.x
fedoraproject / fedora 30 30.x
fedoraproject / fedora 31 31.x
mcafee / data_exchange_layer 4.0.0 6.0.0
mcafee / agent 5.6.0 5.6.4.x
mcafee / threat_intelligence_exchange_server 2.0.0 3.0.0
mcafee / web_gateway 7.0.0 9.0.0
redhat / jboss_enterprise_web_server 5.0.0 5.0.0.x
redhat / virtualization 4.0 4.0.x
redhat / virtualization_host 4.0 4.0.x
redhat / enterprise_linux_desktop 7.0 7.0.x
redhat / enterprise_linux_workstation 7.0 7.0.x
redhat / enterprise_linux_server 7.0 7.0.x
redhat / enterprise_linux_desktop 6.0 6.0.x
redhat / enterprise_linux_server 6.0 6.0.x
redhat / enterprise_linux_workstation 6.0 6.0.x
oracle / jd_edwards_enterpriseone_tools 9.2 9.2.x
oracle / api_gateway 11.1.2.4.0 11.1.2.4.0.x
oracle / business_intelligence 11.1.1.9.0 11.1.1.9.0.x
oracle / peoplesoft_enterprise_peopletools 8.55 8.55.x
oracle / peoplesoft_enterprise_peopletools 8.56 8.56.x
oracle / business_intelligence 12.2.1.3.0 12.2.1.3.0.x
oracle / enterprise_manager_ops_center 12.3.3 12.3.3.x
oracle / peoplesoft_enterprise_peopletools 8.57 8.57.x
oracle / secure_global_desktop 5.4 5.4.x
oracle / mysql 8.0.0 8.0.15.x
oracle / mysql 5.7.0 5.7.25.x
oracle / communications_session_border_controller 8.1.0 8.1.0.x
oracle / communications_session_border_controller 8.0.0 8.0.0.x
oracle / jd_edwards_world_security a9.3 a9.3.x
oracle / jd_edwards_world_security a9.4 a9.4.x
oracle / business_intelligence 12.2.1.4.0 12.2.1.4.0.x
oracle / mysql 5.6.0 5.6.43.x
oracle / enterprise_manager_base_platform 13.2.0.0.0 13.2.0.0.0.x
oracle / enterprise_manager_base_platform 12.1.0.5.0 12.1.0.5.0.x
oracle / enterprise_manager_base_platform 13.3.0.0.0 13.3.0.0.0.x
oracle / enterprise_manager_ops_center 12.4.0 12.4.0.x
oracle / services_tools_bundle 19.2 19.2.x
oracle / communications_diameter_signaling_router 8.0.0 8.0.0.x
oracle / communications_diameter_signaling_router 8.1 8.1.x
oracle / communications_diameter_signaling_router 8.2 8.2.x
oracle / communications_diameter_signaling_router 8.3 8.3.x
oracle / communications_session_border_controller 8.3 8.3.x
oracle / communications_performance_intelligence_center 10.4.0.2 10.4.0.2.x
oracle / communications_session_border_controller 8.2 8.2.x
oracle / mysql_enterprise_monitor 8.0.0 8.0.14.x
oracle / mysql_enterprise_monitor - 4.0.8.x
oracle / jd_edwards_world_security a9.3.1 a9.3.1.x
oracle / communications_session_router 7.4 7.4.x
oracle / communications_session_router 8.0 8.0.x
oracle / communications_session_router 8.1 8.1.x
oracle / endeca_server 7.7.0 7.7.0.x
oracle / mysql_workbench - 8.0.16.x
oracle / communications_session_router 8.2 8.2.x
oracle / communications_session_router 8.3 8.3.x
oracle / communications_session_border_controller 7.4 7.4.x
oracle / communications_diameter_signaling_router 8.4 8.4.x
oracle / communications_unified_session_manager 7.3.5 7.3.5.x
oracle / communications_unified_session_manager 8.2.5 8.2.5.x
paloaltonetworks / pan-os 8.0.0 8.0.20
paloaltonetworks / pan-os 8.1.0 8.1.8
paloaltonetworks / pan-os 9.0.0 9.0.2
paloaltonetworks / pan-os 7.1.0 7.1.15
nodejs / node.js 6.0.0 6.8.1.x
nodejs / node.js 8.0.0 8.8.1.x
nodejs / node.js 6.9.0 6.17.0
nodejs / node.js 8.9.0 8.15.1

Frequently Asked Questions

A security vulnerability is a weakness in software, hardware, or configuration that can be exploited to compromise confidentiality, integrity, or availability. Many vulnerabilities are tracked as CVEs (Common Vulnerabilities and Exposures), which provide a standardized identifier so teams can coordinate patching, mitigation, and risk assessment across tools and vendors.

CVSS (Common Vulnerability Scoring System) estimates technical severity, but it doesn't automatically equal business risk. Prioritize using context like internet exposure, affected asset criticality, known exploitation (proof-of-concept or in-the-wild), and whether compensating controls exist. A "Medium" CVSS on an exposed, production system can be more urgent than a "Critical" on an isolated, non-production host.

A vulnerability is the underlying weakness. An exploit is the method or code used to take advantage of it. A zero-day is a vulnerability that is unknown to the vendor or has no publicly available fix when attackers begin using it. In practice, risk increases sharply when exploitation becomes reliable or widespread.

Recurring findings usually come from incomplete Asset Discovery, inconsistent patch management, inherited images, and configuration drift. In modern environments, you also need to watch the software supply chain: dependencies, containers, build pipelines, and third-party services can reintroduce the same weakness even after you patch a single host. Unknown or unmanaged assets (often called Shadow IT) are a common reason the same issues resurface.

Use a simple, repeatable triage model: focus first on externally exposed assets, high-value systems (identity, VPN, email, production), vulnerabilities with known exploits, and issues that enable remote code execution or privilege escalation. Then enforce patch SLAs and track progress using consistent metrics so remediation is steady, not reactive.

SynScan combines attack surface monitoring and continuous security auditing to keep your inventory current, flag high-impact vulnerabilities early, and help you turn raw findings into a practical remediation plan.