--- id: CVE-2018-0735 title: >- The OpenSSL ECDSA signature algorithm has been shown to be vulnerable to a timing side channel attack summary: >- The OpenSSL ECDSA 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 1.1.0j (Affected 1.1.0-1.1.0i).… 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 >= 1.1.0, <= 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 = 8.0 - debian_linux = 9.0 - '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 - element_software - oncommand_unified_manager - oncommand_unified_manager >= 9.4 - santricity_smi-s_provider - smi-s_provider - snapdrive - steelstore - api_gateway = 11.1.2.4.0 - application_server = 0.9.8 - application_server = 1.0.0 - application_server = 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 <= 5.6.42 - 'mysql >= 5.7.0, <= 5.7.24' - 'mysql >= 8.0.0, <= 8.0.13' - peoplesoft_enterprise_peopletools = 8.55 - peoplesoft_enterprise_peopletools = 8.56 - peoplesoft_enterprise_peopletools = 8.57 - 'primavera_p6_enterprise_project_portfolio_management >= 17.7, <= 17.12' - primavera_p6_enterprise_project_portfolio_management = 8.4 - primavera_p6_enterprise_project_portfolio_management = 15.1 - primavera_p6_enterprise_project_portfolio_management = 15.2 - primavera_p6_enterprise_project_portfolio_management = 16.1 - primavera_p6_enterprise_project_portfolio_management = 16.2 - primavera_p6_enterprise_project_portfolio_management = 18.8 - secure_global_desktop = 5.4 - tuxedo = 12.1.1.0.0 - vm_virtualbox < 6.0.0 - 'vm_virtualbox >= 5.0.0, < 5.2.24' patched: - node.js 11.3.0 - vm_virtualbox 5.2.24 published: '2018-10-29' updated: '2026-10-08' sourceUpdated: '2026-10-08T22:16:43.880' source: NVD sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2018-0735' references: - url: 'http://www.securityfocus.com/bid/105750' label: openssl-security@openssl.org - url: 'http://www.securitytracker.com/id/1041986' label: openssl-security@openssl.org - url: 'https://access.redhat.com/errata/RHSA-2019:3700' label: openssl-security@openssl.org - url: >- https://git.openssl.org/gitweb/?p=openssl.git%3Ba=commitdiff%3Bh=56fb454d281a023b3f950d969693553d3f3ceea1 label: openssl-security@openssl.org - url: >- https://git.openssl.org/gitweb/?p=openssl.git%3Ba=commitdiff%3Bh=b1d6d55ece1c26fa2829e2b819b038d7b6d692b4 label: openssl-security@openssl.org - url: 'https://lists.debian.org/debian-lts-announce/2018/11/msg00024.html' 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://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.openssl.org/news/secadv/20181029.txt' 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: 'http://www.securityfocus.com/bid/105750' label: af854a3a-2127-422b-91ae-364da2661108 - url: 'http://www.securitytracker.com/id/1041986' label: af854a3a-2127-422b-91ae-364da2661108 - url: 'https://access.redhat.com/errata/RHSA-2019:3700' label: af854a3a-2127-422b-91ae-364da2661108 - url: >- https://git.openssl.org/gitweb/?p=openssl.git%3Ba=commitdiff%3Bh=56fb454d281a023b3f950d969693553d3f3ceea1 label: af854a3a-2127-422b-91ae-364da2661108 - url: >- https://git.openssl.org/gitweb/?p=openssl.git%3Ba=commitdiff%3Bh=b1d6d55ece1c26fa2829e2b819b038d7b6d692b4 label: af854a3a-2127-422b-91ae-364da2661108 - url: 'https://lists.debian.org/debian-lts-announce/2018/11/msg00024.html' 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://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.openssl.org/news/secadv/20181029.txt' 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 tags: - nvd epss: 0.04724 epssPercentile: 0.91602 ingestedAt: '2026-10-08T23:16:47.293Z' --- ## Overview The OpenSSL ECDSA 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 1.1.0j (Affected 1.1.0-1.1.0i). Fixed in OpenSSL 1.1.1a (Affected 1.1.1). ## Affected - `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 = 8.0` - `debian_linux = 9.0` - `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` - `element_software` - `oncommand_unified_manager` - `oncommand_unified_manager >= 9.4` - `santricity_smi-s_provider` - `smi-s_provider` - `snapdrive` - `steelstore` - `api_gateway = 11.1.2.4.0` - `application_server = 0.9.8` - `application_server = 1.0.0` - `application_server = 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 <= 5.6.42` - `mysql >= 5.7.0, <= 5.7.24` - `mysql >= 8.0.0, <= 8.0.13` - `peoplesoft_enterprise_peopletools = 8.55` - `peoplesoft_enterprise_peopletools = 8.56` - `peoplesoft_enterprise_peopletools = 8.57` - `primavera_p6_enterprise_project_portfolio_management >= 17.7, <= 17.12` - `primavera_p6_enterprise_project_portfolio_management = 8.4` - `primavera_p6_enterprise_project_portfolio_management = 15.1` - `primavera_p6_enterprise_project_portfolio_management = 15.2` - `primavera_p6_enterprise_project_portfolio_management = 16.1` - `primavera_p6_enterprise_project_portfolio_management = 16.2` - `primavera_p6_enterprise_project_portfolio_management = 18.8` - `secure_global_desktop = 5.4` - `tuxedo = 12.1.1.0.0` - `vm_virtualbox < 6.0.0` - `vm_virtualbox >= 5.0.0, < 5.2.24` ## Remediation Upgrade past the affected range: - `node.js 11.3.0` - `vm_virtualbox 5.2.24`