CVE-2019-1559 | 0-byte record padding oracle

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: 2019-02-27 Last update: 2024-11-21 Assigner: [email protected] Source: [email protected]
NVD Status：Modified，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2019-1559 is rated Moderate Risk (53.5/100): CVSS Medium severity, with medium exploitation likelihood (EPSS 4.96%). Review affected assets and schedule remediation.

Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.

Exploit prediction scoring system (EPSS) score for CVE-2019-1559

EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).

# Date Old EPSS score New EPSS score Delta (New - Old)
1 2026-04-05 6.39% 4.96% -1.43%
2 2026-03-22 4.96% 6.39% +1.43%
3 2026-03-04 — 4.96% —

Full EPSS history (56 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2019-1559

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
5.9 3.1 MEDIUM
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N Click to expand
Attack vector (AV:N)
Could be attacked over the internet or any normal routed network—not just someone sitting at the machine.
Attack complexity (AC:H)
Even with access, the exploit needs extra luck, timing, or a fussy environment to actually work.
Privileges required (PR:N)
No account or special rights needed—anonymous or random user is enough.
User interaction (UI:N)
Nobody has to click “OK” or open a trap file; it can work without a victim helping.
Scope (S:U)
Damage stays in the same “trust bubble” as the broken component—no big spill into unrelated systems.
Confidentiality (C:H)
Serious risk that confidential data gets exposed in a big way.
Integrity (I:N)
Data isn’t meaningfully altered or forged.
Availability (A:N)
Service keeps running; no real outage angle.
 2.2 3.6 [email protected]
4.3 2.0 MEDIUM
AV:N/AC:M/Au:N/C:P/I:N/A:N Click to expand
Access vector (AV:N)
Can be exploited remotely over network reachability.
Access complexity (AC:M)
Exploitation needs some favorable conditions, but not exceptional ones.
Authentication (AU:N)
No authentication is required.
Confidentiality impact (C:P)
Partial confidentiality impact.
Integrity impact (I:N)
No integrity impact.
Availability impact (A:N)
No availability impact.
 8.6 2.9 [email protected]

Weakness enumeration for CVE-2019-1559

OS Trackers for CVE-2019-1559

vendor priority summary link
debian not yet assigned CVE-2019-1559 not yet assigned priority: Debian including 1 source packages (openssl), 5 status rows across 5 suites (bookworm, bullseye, forky, sid, trixie): resolved 5. https://security-tracker.debian.org/tracker/CVE-2019-1559
gentoo normal CVE-2019-1559: 1 GLSA(s) (201903-10), 1 atom(s) (dev-libs/openssl); latest impact normal. https://bugs.gentoo.org/buglist.cgi?quicksearch=CVE-2019-1559
redhat medium — https://access.redhat.com/security/cve/CVE-2019-1559
suse low CVE-2019-1559 severity low: SUSE including 365 source package names (14.64:libopenssl1_0_0-1.0.2p-3.6.1, 14.64:openssl-1_0_0-1.0.2p-3.6.1, …), 748 product×package rows across 118 product lines (Container caasp/v4/nginx-ingress-controller, Container suse/ltss/sle12.5/sles12sp5, … (118 product lines)): Fixed 386, Known Affected 231, Known Not Affected 131. https://www.suse.com/security/cve/CVE-2019-1559/
ubuntu medium CVE-2019-1559 medium priority: Ubuntu including 4 source packages (nodejs, openssl, openssl098, openssl1.0), 32 status rows across 8 suites (bionic, cosmic, disco, eoan, focal, trusty, upstream, xenial): DNE 12, not-affected 12, needs-triage 4, released 4. https://ubuntu.com/security/CVE-2019-1559

Affected software / configurations for CVE-2019-1559

Vendor Product Version Raw CPE
openssl openssl >= 1.0.2, < 1.0.2r cpe:2.3:a:openssl:openssl:*:*:*:*:*:*:*:*
canonical ubuntu_linux 16.04 cpe:2.3:o:canonical:ubuntu_linux:16.04:*:*:*:esm:*:*:*
canonical ubuntu_linux 18.04 cpe:2.3:o:canonical:ubuntu_linux:18.04:*:*:*:lts:*:*:*
canonical ubuntu_linux 18.10 cpe:2.3:o:canonical:ubuntu_linux:18.10:*:*:*:*:*:*:*
debian debian_linux 8.0 cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:*
debian debian_linux 9.0 cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:*
netapp active_iq_unified_manager >= 7.3 cpe:2.3:a:netapp:active_iq_unified_manager:*:*:*:*:*:windows:*:*
netapp active_iq_unified_manager >= 9.5 cpe:2.3:a:netapp:active_iq_unified_manager:*:*:*:*:*:vmware_vsphere:*:*
netapp active_iq_unified_manager — cpe:2.3:a:netapp:active_iq_unified_manager:-:*:*:*:*:windows:*:*
netapp altavault — cpe:2.3:a:netapp:altavault:-:*:*:*:*:*:*:*
netapp cloud_backup — cpe:2.3:a:netapp:cloud_backup:-:*:*:*:*:*:*:*
netapp clustered_data_ontap_antivirus_connector — cpe:2.3:a:netapp:clustered_data_ontap_antivirus_connector:-:*:*:*:*:*:*:*
netapp element_software — cpe:2.3:a:netapp:element_software:-:*:*:*:*:*:*:*
netapp hci_management_node — cpe:2.3:a:netapp:hci_management_node:-:*:*:*:*:*:*:*
netapp hyper_converged_infrastructure — cpe:2.3:a:netapp:hyper_converged_infrastructure:-:*:*:*:*:*:*:*
netapp oncommand_insight — cpe:2.3:a:netapp:oncommand_insight:-:*:*:*:*:*:*:*
netapp oncommand_unified_manager — cpe:2.3:a:netapp:oncommand_unified_manager:-:*:*:*:*:*:*:*
netapp oncommand_unified_manager — cpe:2.3:a:netapp:oncommand_unified_manager:-:*:*:*:*:vsphere:*:*
netapp oncommand_unified_manager_core_package — cpe:2.3:a:netapp:oncommand_unified_manager_core_package:-:*:*:*:*:*:*:*
netapp oncommand_workflow_automation — cpe:2.3:a:netapp:oncommand_workflow_automation:-:*:*:*:*:*:*:*
netapp ontap_select_deploy — cpe:2.3:a:netapp:ontap_select_deploy:-:*:*:*:*:*:*:*
netapp ontap_select_deploy_administration_utility — cpe:2.3:a:netapp:ontap_select_deploy_administration_utility:-:*:*:*:*:*:*:*
netapp santricity_smi-s_provider — cpe:2.3:a:netapp:santricity_smi-s_provider:-:*:*:*:*:*:*:*
netapp service_processor — cpe:2.3:a:netapp:service_processor:-:*:*:*:*:*:*:*
netapp smi-s_provider — cpe:2.3:a:netapp:smi-s_provider:-:*:*:*:*:*:*:*
netapp snapcenter — cpe:2.3:a:netapp:snapcenter:-:*:*:*:*:*:*:*
netapp snapdrive — cpe:2.3:a:netapp:snapdrive:-:*:*:*:*:unix:*:*
netapp snapdrive — cpe:2.3:a:netapp:snapdrive:-:*:*:*:*:windows:*:*
netapp snapprotect — cpe:2.3:a:netapp:snapprotect:-:*:*:*:*:*:*:*
netapp solidfire — cpe:2.3:a:netapp:solidfire:-:*:*:*:*:*:*:*
netapp steelstore_cloud_integrated_storage — cpe:2.3:a:netapp:steelstore_cloud_integrated_storage:-:*:*:*:*:*:*:*
netapp storage_automation_store — cpe:2.3:a:netapp:storage_automation_store:-:*:*:*:*:*:*:*
netapp storagegrid >= 9.0.0, <= 9.0.4 cpe:2.3:a:netapp:storagegrid:*:*:*:*:*:*:*:*
netapp storagegrid — cpe:2.3:a:netapp:storagegrid:-:*:*:*:*:*:*:*
netapp hci_compute_node — cpe:2.3:h:netapp:hci_compute_node:-:*:*:*:*:*:*:*
f5 big-ip_access_policy_manager >= 12.1.0, <= 12.1.5 cpe:2.3:a:f5:big-ip_access_policy_manager:*:*:*:*:*:*:*:*
f5 big-ip_access_policy_manager >= 13.0.0, <= 13.1.3 cpe:2.3:a:f5:big-ip_access_policy_manager:*:*:*:*:*:*:*:*
f5 big-ip_access_policy_manager >= 14.0.0, <= 14.1.2 cpe:2.3:a:f5:big-ip_access_policy_manager:*:*:*:*:*:*:*:*
f5 big-ip_access_policy_manager >= 15.0.0, <= 15.1.0 cpe:2.3:a:f5:big-ip_access_policy_manager:*:*:*:*:*:*:*:*
f5 big-ip_advanced_firewall_manager >= 12.1.0, <= 12.1.5 cpe:2.3:a:f5:big-ip_advanced_firewall_manager:*:*:*:*:*:*:*:*
f5 big-ip_advanced_firewall_manager >= 13.0.0, <= 13.1.3 cpe:2.3:a:f5:big-ip_advanced_firewall_manager:*:*:*:*:*:*:*:*
f5 big-ip_advanced_firewall_manager >= 14.0.0, <= 14.1.2 cpe:2.3:a:f5:big-ip_advanced_firewall_manager:*:*:*:*:*:*:*:*
f5 big-ip_advanced_firewall_manager >= 15.0.0, <= 15.1.0 cpe:2.3:a:f5:big-ip_advanced_firewall_manager:*:*:*:*:*:*:*:*
f5 big-ip_analytics >= 12.1.0, <= 12.1.5 cpe:2.3:a:f5:big-ip_analytics:*:*:*:*:*:*:*:*
f5 big-ip_analytics >= 13.0.0, <= 13.1.3 cpe:2.3:a:f5:big-ip_analytics:*:*:*:*:*:*:*:*
f5 big-ip_analytics >= 14.0.0, <= 14.1.2 cpe:2.3:a:f5:big-ip_analytics:*:*:*:*:*:*:*:*
f5 big-ip_analytics >= 15.0.0, <= 15.1.0 cpe:2.3:a:f5:big-ip_analytics:*:*:*:*:*:*:*:*
f5 big-ip_application_acceleration_manager >= 12.1.0, <= 12.1.5 cpe:2.3:a:f5:big-ip_application_acceleration_manager:*:*:*:*:*:*:*:*
f5 big-ip_application_acceleration_manager >= 13.0.0, <= 13.1.3 cpe:2.3:a:f5:big-ip_application_acceleration_manager:*:*:*:*:*:*:*:*
f5 big-ip_application_acceleration_manager >= 14.0.0, <= 14.1.2 cpe:2.3:a:f5:big-ip_application_acceleration_manager:*:*:*:*:*:*:*:*
f5 big-ip_application_acceleration_manager >= 15.0.0, <= 15.1.0 cpe:2.3:a:f5:big-ip_application_acceleration_manager:*:*:*:*:*:*:*:*
f5 big-ip_application_security_manager >= 12.1.0, <= 12.1.5 cpe:2.3:a:f5:big-ip_application_security_manager:*:*:*:*:*:*:*:*
f5 big-ip_application_security_manager >= 13.0.0, <= 13.1.3 cpe:2.3:a:f5:big-ip_application_security_manager:*:*:*:*:*:*:*:*
f5 big-ip_application_security_manager >= 14.0.0, <= 14.1.2 cpe:2.3:a:f5:big-ip_application_security_manager:*:*:*:*:*:*:*:*
f5 big-ip_application_security_manager >= 15.0.0, <= 15.1.0 cpe:2.3:a:f5:big-ip_application_security_manager:*:*:*:*:*:*:*:*
f5 big-ip_domain_name_system >= 12.1.0, <= 12.1.5 cpe:2.3:a:f5:big-ip_domain_name_system:*:*:*:*:*:*:*:*
f5 big-ip_domain_name_system >= 13.0.0, <= 13.1.3 cpe:2.3:a:f5:big-ip_domain_name_system:*:*:*:*:*:*:*:*
f5 big-ip_domain_name_system >= 14.0.0, <= 14.1.2 cpe:2.3:a:f5:big-ip_domain_name_system:*:*:*:*:*:*:*:*
f5 big-ip_domain_name_system >= 15.0.0, <= 15.1.0 cpe:2.3:a:f5:big-ip_domain_name_system:*:*:*:*:*:*:*:*
f5 big-ip_edge_gateway >= 12.1.0, <= 12.1.5 cpe:2.3:a:f5:big-ip_edge_gateway:*:*:*:*:*:*:*:*
f5 big-ip_edge_gateway >= 13.0.0, <= 13.1.3 cpe:2.3:a:f5:big-ip_edge_gateway:*:*:*:*:*:*:*:*
f5 big-ip_edge_gateway >= 14.0.0, <= 14.1.2 cpe:2.3:a:f5:big-ip_edge_gateway:*:*:*:*:*:*:*:*
f5 big-ip_edge_gateway >= 15.0.0, <= 15.1.0 cpe:2.3:a:f5:big-ip_edge_gateway:*:*:*:*:*:*:*:*
f5 big-ip_fraud_protection_service >= 12.1.0, <= 12.1.5 cpe:2.3:a:f5:big-ip_fraud_protection_service:*:*:*:*:*:*:*:*
f5 big-ip_fraud_protection_service >= 13.0.0, <= 13.1.3 cpe:2.3:a:f5:big-ip_fraud_protection_service:*:*:*:*:*:*:*:*
f5 big-ip_fraud_protection_service >= 14.0.0, <= 14.1.2 cpe:2.3:a:f5:big-ip_fraud_protection_service:*:*:*:*:*:*:*:*
f5 big-ip_fraud_protection_service >= 15.0.0, <= 15.1.0 cpe:2.3:a:f5:big-ip_fraud_protection_service:*:*:*:*:*:*:*:*
f5 big-ip_global_traffic_manager >= 12.1.0, <= 12.1.5 cpe:2.3:a:f5:big-ip_global_traffic_manager:*:*:*:*:*:*:*:*
f5 big-ip_global_traffic_manager >= 13.0.0, <= 13.1.3 cpe:2.3:a:f5:big-ip_global_traffic_manager:*:*:*:*:*:*:*:*
f5 big-ip_global_traffic_manager >= 14.0.0, <= 14.1.2 cpe:2.3:a:f5:big-ip_global_traffic_manager:*:*:*:*:*:*:*:*
f5 big-ip_global_traffic_manager >= 15.0.0, <= 15.1.0 cpe:2.3:a:f5:big-ip_global_traffic_manager:*:*:*:*:*:*:*:*
f5 big-ip_link_controller >= 12.1.0, <= 12.1.5 cpe:2.3:a:f5:big-ip_link_controller:*:*:*:*:*:*:*:*
f5 big-ip_link_controller >= 13.0.0, <= 13.1.3 cpe:2.3:a:f5:big-ip_link_controller:*:*:*:*:*:*:*:*
f5 big-ip_link_controller >= 14.0.0, <= 14.1.2 cpe:2.3:a:f5:big-ip_link_controller:*:*:*:*:*:*:*:*
f5 big-ip_link_controller >= 15.0.0, <= 15.1.0 cpe:2.3:a:f5:big-ip_link_controller:*:*:*:*:*:*:*:*
f5 big-ip_local_traffic_manager >= 12.1.0, <= 12.1.5 cpe:2.3:a:f5:big-ip_local_traffic_manager:*:*:*:*:*:*:*:*
f5 big-ip_local_traffic_manager >= 13.0.0, <= 13.1.3 cpe:2.3:a:f5:big-ip_local_traffic_manager:*:*:*:*:*:*:*:*
f5 big-ip_local_traffic_manager >= 14.0.0, <= 14.1.2 cpe:2.3:a:f5:big-ip_local_traffic_manager:*:*:*:*:*:*:*:*
f5 big-ip_local_traffic_manager >= 15.0.0, <= 15.1.0 cpe:2.3:a:f5:big-ip_local_traffic_manager:*:*:*:*:*:*:*:*
f5 big-ip_policy_enforcement_manager >= 12.1.0, <= 12.1.5 cpe:2.3:a:f5:big-ip_policy_enforcement_manager:*:*:*:*:*:*:*:*

References for CVE-2019-1559

URL Tags
http://lists.opensuse.org/opensuse-security-announce/2019-03/msg00041.html Mailing List Third Party Advisory
http://lists.opensuse.org/opensuse-security-announce/2019-04/msg00019.html Mailing List Third Party Advisory
http://lists.opensuse.org/opensuse-security-announce/2019-04/msg00046.html Mailing List Third Party Advisory
http://lists.opensuse.org/opensuse-security-announce/2019-04/msg00047.html Mailing List Third Party Advisory
http://lists.opensuse.org/opensuse-security-announce/2019-05/msg00049.html Mailing List Third Party Advisory
http://lists.opensuse.org/opensuse-security-announce/2019-06/msg00080.html Mailing List Third Party Advisory
http://www.securityfocus.com/bid/107174 Third Party Advisory VDB Entry
https://access.redhat.com/errata/RHSA-2019:2304 Third Party Advisory
https://access.redhat.com/errata/RHSA-2019:2437 Third Party Advisory
https://access.redhat.com/errata/RHSA-2019:2439 Third Party Advisory
https://access.redhat.com/errata/RHSA-2019:2471 Third Party Advisory
https://access.redhat.com/errata/RHSA-2019:3929 Third Party Advisory
https://access.redhat.com/errata/RHSA-2019:3931 Third Party Advisory
https://git.openssl.org/gitweb/?p=openssl.git%3Ba=commitdiff%3Bh=e9bbefbf0f24c57645e7ad6a5a71ae649d18ac8e
https://kc.mcafee.com/corporate/index?page=content&id=SB10282 Third Party Advisory
https://lists.debian.org/debian-lts-announce/2019/03/msg00003.html Mailing List Third Party Advisory
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/EWC42UXL5GHTU5G77VKBF6JYUUNGSHOM/
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/Y3IVFGSERAZLNJCK35TEM2R4726XIH3Z/
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/ZBEV5QGDRFUZDMNECFXUSN5FMYOZDE4V/
https://security.gentoo.org/glsa/201903-10 Third Party Advisory
https://security.netapp.com/advisory/ntap-20190301-0001/ Patch Third Party Advisory
https://security.netapp.com/advisory/ntap-20190301-0002/ Broken Link Third Party Advisory
https://security.netapp.com/advisory/ntap-20190423-0002/ Third Party Advisory
https://support.f5.com/csp/article/K18549143 Third Party Advisory
https://support.f5.com/csp/article/K18549143?utm_source=f5support&amp%3Butm_medium=RSS
https://usn.ubuntu.com/3899-1/ Third Party Advisory
https://usn.ubuntu.com/4376-2/ Broken Link
https://www.debian.org/security/2019/dsa-4400 Third Party Advisory
https://www.openssl.org/news/secadv/20190226.txt Vendor Advisory
https://www.oracle.com/security-alerts/cpujan2020.html Third Party Advisory
https://www.oracle.com/security-alerts/cpujan2021.html Third Party Advisory
https://www.oracle.com/technetwork/security-advisory/cpuapr2019-5072813.html Patch Third Party Advisory
https://www.oracle.com/technetwork/security-advisory/cpujul2019-5072835.html Patch Third Party Advisory
https://www.oracle.com/technetwork/security-advisory/cpuoct2019-5072832.html Patch Third Party Advisory
https://www.tenable.com/security/tns-2019-02 Patch Third Party Advisory
https://www.tenable.com/security/tns-2019-03 Third Party Advisory
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