--- id: CVE-2018-0734 title: >- The OpenSSL DSA signature algorithm has been shown to be vulnerable to a timing side channel attack summary: >- The OpenSSL DSA signature algorithm has been shown to be vulnerable to a timing side channel attack. An attacker could use variations in the signing algorithm to recover the private key. Fixed in OpenSSL 1.1.1a (Affected 1.1.1). Fixed in… severity: medium cvss: 5.9 cvssVector: 'CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N' cwe: - CWE-327 vendor: openssl product: openssl affected: - 'openssl >= 1.0.2, <= 1.0.2p' - 'openssl >= 1.1.0, <= 1.1.0i' - openssl = 1.1.1 - ubuntu_linux = 14.04 - ubuntu_linux = 16.04 - ubuntu_linux = 18.04 - ubuntu_linux = 18.10 - debian_linux = 9.0 - 'node.js >= 6.0.0, <= 6.8.1' - 'node.js >= 6.9.0, < 6.15.0' - 'node.js >= 8.0.0, <= 8.8.1' - 'node.js >= 8.9.0, < 8.14.0' - 'node.js >= 10.0.0, <= 10.12.0' - 'node.js >= 11.0.0, < 11.3.0' - node.js = 10.13.0 - cn1610_firmware - cloud_backup - oncommand_unified_manager - santricity_smi-s_provider - snapcenter - steelstore - storage_automation_store - api_gateway = 11.1.2.4.0 - e-business_suite_technology_stack = 0.9.8 - e-business_suite_technology_stack = 1.0.0 - e-business_suite_technology_stack = 1.0.1 - enterprise_manager_base_platform = 12.1.0.5.0 - enterprise_manager_base_platform = 13.2.0.0.0 - enterprise_manager_base_platform = 13.3.0.0.0 - enterprise_manager_ops_center = 12.3.3 - 'mysql_enterprise_backup >= 3.0, <= 3.12.3' - 'mysql_enterprise_backup >= 4.0, <= 4.1.2' - peoplesoft_enterprise_peopletools = 8.55 - peoplesoft_enterprise_peopletools = 8.56 - peoplesoft_enterprise_peopletools = 8.57 - 'primavera_p6_professional_project_management >= 17.7, <= 17.12' - primavera_p6_professional_project_management = 8.4 - primavera_p6_professional_project_management = 15.1 - primavera_p6_professional_project_management = 15.2 - primavera_p6_professional_project_management = 16.1 - primavera_p6_professional_project_management = 16.2 - primavera_p6_professional_project_management = 18.8 - tuxedo = 12.1.1.0.0 patched: - node.js 11.3.0 published: '2018-10-30' updated: '2026-10-08' sourceUpdated: '2026-10-08T22:16:42.960' source: NVD sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2018-0734' references: - url: 'http://lists.opensuse.org/opensuse-security-announce/2019-06/msg00030.html' label: openssl-security@openssl.org - url: 'http://lists.opensuse.org/opensuse-security-announce/2019-07/msg00056.html' label: openssl-security@openssl.org - url: 'http://www.securityfocus.com/bid/105758' label: openssl-security@openssl.org - url: 'https://access.redhat.com/errata/RHSA-2019:2304' label: openssl-security@openssl.org - url: 'https://access.redhat.com/errata/RHSA-2019:3700' label: openssl-security@openssl.org - url: 'https://access.redhat.com/errata/RHSA-2019:3932' label: openssl-security@openssl.org - url: 'https://access.redhat.com/errata/RHSA-2019:3933' label: openssl-security@openssl.org - url: 'https://access.redhat.com/errata/RHSA-2019:3935' label: openssl-security@openssl.org - url: >- https://git.openssl.org/gitweb/?p=openssl.git%3Ba=commitdiff%3Bh=43e6a58d4991a451daf4891ff05a48735df871ac label: openssl-security@openssl.org - url: >- https://git.openssl.org/gitweb/?p=openssl.git%3Ba=commitdiff%3Bh=8abfe72e8c1de1b95f50aa0d9134803b4d00070f label: openssl-security@openssl.org - url: >- https://git.openssl.org/gitweb/?p=openssl.git%3Ba=commitdiff%3Bh=ef11e19d1365eea2b1851e6f540a0bf365d303e7 label: openssl-security@openssl.org - url: >- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/EWC42UXL5GHTU5G77VKBF6JYUUNGSHOM/ label: openssl-security@openssl.org - url: >- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/Y3IVFGSERAZLNJCK35TEM2R4726XIH3Z/ label: openssl-security@openssl.org - url: >- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/ZBEV5QGDRFUZDMNECFXUSN5FMYOZDE4V/ label: openssl-security@openssl.org - url: 'https://nodejs.org/en/blog/vulnerability/november-2018-security-releases/' label: openssl-security@openssl.org - url: 'https://security.netapp.com/advisory/ntap-20181105-0002/' label: openssl-security@openssl.org - url: 'https://security.netapp.com/advisory/ntap-20190118-0002/' label: openssl-security@openssl.org - url: 'https://security.netapp.com/advisory/ntap-20190423-0002/' label: openssl-security@openssl.org - url: 'https://usn.ubuntu.com/3840-1/' label: openssl-security@openssl.org - url: 'https://www.debian.org/security/2018/dsa-4348' label: openssl-security@openssl.org - url: 'https://www.debian.org/security/2018/dsa-4355' label: openssl-security@openssl.org - url: 'https://www.openssl.org/news/secadv/20181030.txt' label: openssl-security@openssl.org - url: 'https://www.oracle.com/security-alerts/cpuapr2020.html' label: openssl-security@openssl.org - url: 'https://www.oracle.com/security-alerts/cpujan2020.html' label: openssl-security@openssl.org - url: >- https://www.oracle.com/technetwork/security-advisory/cpuapr2019-5072813.html label: openssl-security@openssl.org - url: >- https://www.oracle.com/technetwork/security-advisory/cpujan2019-5072801.html label: openssl-security@openssl.org - url: >- https://www.oracle.com/technetwork/security-advisory/cpujul2019-5072835.html label: openssl-security@openssl.org - url: 'https://www.tenable.com/security/tns-2018-16' label: openssl-security@openssl.org - url: 'https://www.tenable.com/security/tns-2018-17' label: openssl-security@openssl.org - url: 'http://lists.opensuse.org/opensuse-security-announce/2019-06/msg00030.html' label: af854a3a-2127-422b-91ae-364da2661108 - url: 'http://lists.opensuse.org/opensuse-security-announce/2019-07/msg00056.html' label: af854a3a-2127-422b-91ae-364da2661108 - url: 'http://www.securityfocus.com/bid/105758' label: af854a3a-2127-422b-91ae-364da2661108 - url: 'https://access.redhat.com/errata/RHSA-2019:2304' label: af854a3a-2127-422b-91ae-364da2661108 - url: 'https://access.redhat.com/errata/RHSA-2019:3700' label: af854a3a-2127-422b-91ae-364da2661108 - url: 'https://access.redhat.com/errata/RHSA-2019:3932' label: af854a3a-2127-422b-91ae-364da2661108 - url: 'https://access.redhat.com/errata/RHSA-2019:3933' label: af854a3a-2127-422b-91ae-364da2661108 - url: 'https://access.redhat.com/errata/RHSA-2019:3935' label: af854a3a-2127-422b-91ae-364da2661108 - url: >- https://git.openssl.org/gitweb/?p=openssl.git%3Ba=commitdiff%3Bh=43e6a58d4991a451daf4891ff05a48735df871ac label: af854a3a-2127-422b-91ae-364da2661108 - url: >- https://git.openssl.org/gitweb/?p=openssl.git%3Ba=commitdiff%3Bh=8abfe72e8c1de1b95f50aa0d9134803b4d00070f label: af854a3a-2127-422b-91ae-364da2661108 - url: >- https://git.openssl.org/gitweb/?p=openssl.git%3Ba=commitdiff%3Bh=ef11e19d1365eea2b1851e6f540a0bf365d303e7 label: af854a3a-2127-422b-91ae-364da2661108 - url: >- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/EWC42UXL5GHTU5G77VKBF6JYUUNGSHOM/ label: af854a3a-2127-422b-91ae-364da2661108 - url: >- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/Y3IVFGSERAZLNJCK35TEM2R4726XIH3Z/ label: af854a3a-2127-422b-91ae-364da2661108 - url: >- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/ZBEV5QGDRFUZDMNECFXUSN5FMYOZDE4V/ label: af854a3a-2127-422b-91ae-364da2661108 - url: 'https://nodejs.org/en/blog/vulnerability/november-2018-security-releases/' label: af854a3a-2127-422b-91ae-364da2661108 - url: 'https://security.netapp.com/advisory/ntap-20181105-0002/' label: af854a3a-2127-422b-91ae-364da2661108 - url: 'https://security.netapp.com/advisory/ntap-20190118-0002/' label: af854a3a-2127-422b-91ae-364da2661108 - url: 'https://security.netapp.com/advisory/ntap-20190423-0002/' label: af854a3a-2127-422b-91ae-364da2661108 - url: 'https://usn.ubuntu.com/3840-1/' label: af854a3a-2127-422b-91ae-364da2661108 - url: 'https://www.debian.org/security/2018/dsa-4348' label: af854a3a-2127-422b-91ae-364da2661108 - url: 'https://www.debian.org/security/2018/dsa-4355' label: af854a3a-2127-422b-91ae-364da2661108 - url: 'https://www.openssl.org/news/secadv/20181030.txt' label: af854a3a-2127-422b-91ae-364da2661108 - url: 'https://www.oracle.com/security-alerts/cpuapr2020.html' label: af854a3a-2127-422b-91ae-364da2661108 - url: 'https://www.oracle.com/security-alerts/cpujan2020.html' label: af854a3a-2127-422b-91ae-364da2661108 - url: >- https://www.oracle.com/technetwork/security-advisory/cpuapr2019-5072813.html label: af854a3a-2127-422b-91ae-364da2661108 - url: >- https://www.oracle.com/technetwork/security-advisory/cpujan2019-5072801.html label: af854a3a-2127-422b-91ae-364da2661108 - url: >- https://www.oracle.com/technetwork/security-advisory/cpujul2019-5072835.html label: af854a3a-2127-422b-91ae-364da2661108 - url: 'https://www.tenable.com/security/tns-2018-16' label: af854a3a-2127-422b-91ae-364da2661108 - url: 'https://www.tenable.com/security/tns-2018-17' label: af854a3a-2127-422b-91ae-364da2661108 tags: - nvd epss: 0.12154 epssPercentile: 0.96062 ingestedAt: '2026-10-08T23:16:47.293Z' --- ## Overview The OpenSSL DSA signature algorithm has been shown to be vulnerable to a timing side channel attack. An attacker could use variations in the signing algorithm to recover the private key. Fixed in OpenSSL 1.1.1a (Affected 1.1.1). Fixed in OpenSSL 1.1.0j (Affected 1.1.0-1.1.0i). Fixed in OpenSSL 1.0.2q (Affected 1.0.2-1.0.2p). ## Affected - `openssl >= 1.0.2, <= 1.0.2p` - `openssl >= 1.1.0, <= 1.1.0i` - `openssl = 1.1.1` - `ubuntu_linux = 14.04` - `ubuntu_linux = 16.04` - `ubuntu_linux = 18.04` - `ubuntu_linux = 18.10` - `debian_linux = 9.0` - `node.js >= 6.0.0, <= 6.8.1` - `node.js >= 6.9.0, < 6.15.0` - `node.js >= 8.0.0, <= 8.8.1` - `node.js >= 8.9.0, < 8.14.0` - `node.js >= 10.0.0, <= 10.12.0` - `node.js >= 11.0.0, < 11.3.0` - `node.js = 10.13.0` - `cn1610_firmware` - `cloud_backup` - `oncommand_unified_manager` - `santricity_smi-s_provider` - `snapcenter` - `steelstore` - `storage_automation_store` - `api_gateway = 11.1.2.4.0` - `e-business_suite_technology_stack = 0.9.8` - `e-business_suite_technology_stack = 1.0.0` - `e-business_suite_technology_stack = 1.0.1` - `enterprise_manager_base_platform = 12.1.0.5.0` - `enterprise_manager_base_platform = 13.2.0.0.0` - `enterprise_manager_base_platform = 13.3.0.0.0` - `enterprise_manager_ops_center = 12.3.3` - `mysql_enterprise_backup >= 3.0, <= 3.12.3` - `mysql_enterprise_backup >= 4.0, <= 4.1.2` - `peoplesoft_enterprise_peopletools = 8.55` - `peoplesoft_enterprise_peopletools = 8.56` - `peoplesoft_enterprise_peopletools = 8.57` - `primavera_p6_professional_project_management >= 17.7, <= 17.12` - `primavera_p6_professional_project_management = 8.4` - `primavera_p6_professional_project_management = 15.1` - `primavera_p6_professional_project_management = 15.2` - `primavera_p6_professional_project_management = 16.1` - `primavera_p6_professional_project_management = 16.2` - `primavera_p6_professional_project_management = 18.8` - `tuxedo = 12.1.1.0.0` ## Remediation Upgrade past the affected range: - `node.js 11.3.0`