Description
The OpenSSL RSA Key generation algorithm has been shown to be vulnerable to a cache timing side channel attack. An attacker with sufficient access to mount cache timing attacks during the RSA key generation process could recover the private key. Fixed in OpenSSL 1.1.0i-dev (Affected 1.1.0-1.1.0h). Fixed in OpenSSL 1.0.2p-dev (Affected 1.0.2b-1.0.2o).
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| OpenSSL | OpenSSL | Fixed in OpenSSL 1.1.0i-dev (Affected 1.1.0-1.1.0h), Fixed in OpenSSL 1.0.2p-dev (Affected 1.0.2b-1.0.2o) | — |
Fixed in Linux distributions
Distributions backport fixes, so the version that fixes this vulnerability differs per release — upgrade to at least the version shown. From the distributions' security trackers and advisories.
Debian
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Debian 14 | openssl | 1.1.0h-3 | — |
| Debian 13 | openssl | 1.1.0h-3 | — |
| Debian 12 | openssl | 1.1.0h-3 | — |
| Debian 9 | openssl | 1.1.0j-1~deb9u1 | DSA-4348-1 |
| Debian 9 | openssl1.0 | 1.0.2q-1~deb9u1 | DSA-4355-1 |
| Debian 8 | openssl | 1.0.1t-1+deb8u9 | DLA-1449-1 |
Ubuntu
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 18.04 LTS | openssl | 1.1.0g-2ubuntu4.1 | USN-3692-1 |
| Ubuntu 18.04 LTS | openssl1.0 | 1.0.2n-1ubuntu5.1 | USN-3692-1 |
| Ubuntu 16.04 LTS | openssl | 1.0.2g-1ubuntu4.13 | USN-3692-1, USN-3628-1 |
| Ubuntu 14.04 LTS | openssl | 1.0.1f-1ubuntu2.26 | USN-3692-1, USN-3628-1 |
Red Hat
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| RHEL 7 | openssl +4 | 1:1.0.2k-16.el7 | RHSA-2018:3221 |
Show 1 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Red Hat JBoss Core Services 1 | jbcs-httpd24-apr +1 | 1.6.3-63.jbcs.el6 | RHSA-2019:3933, RHSA-2019:3932 |
| Red Hat JBoss Core Services 1 | jbcs-httpd24-apr-util +8 | 1.6.1-48.jbcs.el6 | RHSA-2019:3933, RHSA-2019:3932 |
| Red Hat JBoss Core Services 1 | jbcs-httpd24-brotli +1 | 1.0.6-7.jbcs.el6 | RHSA-2019:3933, RHSA-2019:3932 |
| Red Hat JBoss Core Services 1 | jbcs-httpd24-curl +2 | 7.64.1-14.jbcs.el6 | RHSA-2019:3933, RHSA-2019:3932 |
| Red Hat JBoss Core Services 1 | jbcs-httpd24-httpd +7 | 2.4.37-33.jbcs.el6 | RHSA-2019:3933, RHSA-2019:3932 |
| Red Hat JBoss Core Services 1 | jbcs-httpd24-jansson +1 | 2.11-20.jbcs.el6 | RHSA-2019:3933, RHSA-2019:3932 |
| Red Hat JBoss Core Services 1 | jbcs-httpd24-mod_cluster-native | 1.3.12-9.Final_redhat_2.jbcs.el6 | RHSA-2019:3933, RHSA-2019:3932 |
| Red Hat JBoss Core Services 1 | jbcs-httpd24-mod_jk +2 | 1.2.46-22.redhat_1.jbcs.el6 | RHSA-2019:3933, RHSA-2019:3932 |
| Red Hat JBoss Core Services 1 | jbcs-httpd24-mod_security | 2.9.2-16.GA.jbcs.el6 | RHSA-2019:3933, RHSA-2019:3932 |
| Red Hat JBoss Core Services 1 | jbcs-httpd24-mod_ssl +1 | 1:2.4.37-33.jbcs.el6 | RHSA-2019:3933, RHSA-2019:3932 |
| Red Hat JBoss Core Services 1 | jbcs-httpd24-nghttp2 +1 | 1.39.2-4.jbcs.el6 | RHSA-2019:3933, RHSA-2019:3932 |
| Red Hat JBoss Core Services 1 | jbcs-httpd24-openssl +4 | 1:1.1.1-25.jbcs.el6 | RHSA-2019:3933, RHSA-2019:3932 |
SUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SLES 15 | openssl-1_0_0 | 1.0.2p-3.8.1 | SUSE-SU-2018:2965-1 |
| SLES 15 | openssl-1_1 | 1.1.0i-4.18.1 | SUSE-SU-2019:0197-1 |
| SLES 12 SP3 | compat-openssl098 | 0.9.8j-106.6.1 | SUSE-SU-2018:2683-1 |
| SLES 12 SP3 | openssl | 1.0.2j-60.39.1 | SUSE-SU-2018:2928-1 |
| SLES 12 SP2 | openssl | 1.0.2j-60.39.1 | SUSE-SU-2018:2928-2, SUSE-SU-2018:2928-1 |
| SLES 12 SP1 | openssl | 1.0.1i-54.17.1 | SUSE-SU-2018:3864-1, SUSE-SU-2018:2492-1 |
| SLES 12 | compat-openssl098 | 0.9.8j-106.6.1 | SUSE-SU-2018:2683-1 |
| SLES 12 | openssl | 1.0.1i-27.34.1 | SUSE-SU-2019:1553-1 |
Show 9 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SLES 11 SP4 | openssl | 0.9.8j-0.106.15.1 | SUSE-SU-2018:2486-1 |
| SLES 11 | openssl1 | 1.0.1g-0.58.12.1 | SUSE-SU-2018:2545-1 |
| SUSE Studio Onsite 1.3 | openssl | 0.9.8j-0.106.15.1 | SUSE-SU-2018:2486-1 |
| SLES for SAP 12 SP3 | compat-openssl098 | 0.9.8j-106.6.1 | SUSE-SU-2018:2683-1 |
| SLES for SAP 12 SP3 | openssl | 1.0.2j-60.39.1 | SUSE-SU-2018:2928-1 |
| SLES for SAP 12 SP2 | compat-openssl098 | 0.9.8j-106.6.1 | SUSE-SU-2018:2683-1 |
| SLES for SAP 12 SP2 | openssl | 1.0.2j-60.39.1 | SUSE-SU-2018:2928-1 |
| SLES for SAP 12 SP1 | compat-openssl098 | 0.9.8j-106.6.1 | SUSE-SU-2018:2683-1 |
| SLES for SAP 12 SP1 | openssl | 1.0.1i-54.17.1 | SUSE-SU-2018:3864-2, SUSE-SU-2018:2492-1 |
| SLES for SAP 11 SP4 | openssl | 0.9.8j-0.106.15.1 | SUSE-SU-2018:2486-1 |
| SUSE OpenStack Cloud 7 | openssl | 1.0.2j-60.39.1 | SUSE-SU-2018:2928-1 |
| SUSE Enterprise Storage 4 | openssl | 1.0.2j-60.39.1 | SUSE-SU-2018:2928-1 |
openSUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| openSUSE Tumbleweed | openssl-1_0_0 | 1.0.2u-6.2 | openSUSE-SU-2024:11126-1 |
| openSUSE Tumbleweed | openssl-1_1 | 1.1.1l-1.2 | openSUSE-SU-2024:11127-1 |
| openSUSE Leap 15.0 | openssl-1_1 | 1.1.0i-lp150.3.18.1 | openSUSE-SU-2019:0152-1 |
Alpine
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Alpine v3.8 | openssl | 1.0.2o-r2 | — |
| Alpine v3.7 | openssl | 1.0.2o-r1 | — |
| Alpine v3.6 | openssl | 1.0.2o-r1 | — |
| Alpine v3.5 | openssl | 1.0.2o-r1 | — |
| Alpine v3.4 | openssl | 1.0.2o-r2 | — |
Show 1 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Alpine v3.3 | openssl | 1.0.2o-r1 | — |
Amazon Linux
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Amazon Linux 2 | openssl +4 | 1:1.0.2k-12.amzn2.0.1 | ALAS2-2018-1004 |
Oracle Linux
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Oracle Linux 7 | openssl +4 | 1:1.0.2k-12.0.3.el7 | ELSA-2018-4249, ELSA-2018-3221 |
Advisories 31
- RHSA-2019:3933 Red Hat Security Advisory: Red Hat JBoss Core Services Apache HTTP Server 2.4.37 Security Release on RHEL 7 Red Hat Security Advisories (RHSA) · Oct 16, 2026
- RHSA-2019:3932 Red Hat Security Advisory: Red Hat JBoss Core Services Apache HTTP Server 2.4.37 Security Release on RHEL 6 Red Hat Security Advisories (RHSA) · Oct 16, 2026
- RHSA-2018:3221 Red Hat Security Advisory: openssl security, bug fix, and enhancement update Red Hat Security Advisories (RHSA) · Oct 16, 2026
- WID-SEC-2022-1696 Oracle MySQL: Mehrere Schwachstellen BSI CERT-Bund (WID) · Oct 13, 2026
- USN-3692-1 openssl, openssl1.0 vulnerabilities Ubuntu Security Notices (USN) · Apr 22, 2026
- USN-3628-1 openssl vulnerability Ubuntu Security Notices (USN) · Apr 22, 2026
- DSA-4355-1 openssl1.0 - security update Debian Security (DSA / DLA) · Mar 9, 2026
- DSA-4348-1 openssl - security update Debian Security (DSA / DLA) · Mar 9, 2026
- DLA-1449-1 openssl - security update Debian Security (DSA / DLA) · Mar 9, 2026
- SUSE-SU-2018:2928-1 Security update for openssl SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2018:2928-2 Security update for openssl SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2018:2965-1 Security update for openssl-1_0_0 SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2018:2683-1 Security update for compat-openssl098 SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2018:2492-1 Security update for openssl SUSE / openSUSE Security Updates · Feb 4, 2026
- openSUSE-SU-2019:0152-1 Security update for openssl-1_1 SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2018:2545-1 Security update for openssl1 SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2018:3864-2 Security update for openssl SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2018:2486-1 Security update for openssl SUSE / openSUSE Security Updates · Feb 4, 2026
- openSUSE-SU-2024:11126-1 libopenssl-1_0_0-devel-1.0.2u-6.2 on GA media SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2019:0197-1 Security update for openssl-1_1 SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2019:1553-1 Security update for openssl SUSE / openSUSE Security Updates · Feb 4, 2026
- WID-SEC-2024-0204 OpenSSL: Schwachstelle ermöglicht Umgehen von Sicherheitsvorkehrungen BSI CERT-Bund (WID) · Oct 20, 2025
- WID-SEC-2025-1212 Oracle Communications Applications: Mehrere Schwachstellen BSI CERT-Bund (WID) · Jun 2, 2025
- VDE-2019-009 PHOENIX CONTACT: Multiple Vulnerabilities in AXC F 2152 CERT@VDE · May 22, 2025
- openSUSE-SU-2024:11127-1 libopenssl-1_1-devel-1.1.1l-1.2 on GA media SUSE / openSUSE Security Updates · May 7, 2025
- SUSE-SU-2018:3864-1 Security update for openssl SUSE / openSUSE Security Updates · May 2, 2025
- NCSC-2024-0239 Kwetsbaarheden verholpen in Solarwinds Platform NCSC-NL (Netherlands) · Jun 7, 2024
- ICSA-19-155-01 PHOENIX CONTACT PLCNext AXC F 2152 CISA ICS & IT advisories · Jun 4, 2019
- ELSA-2018-3221 Moderate: openssl security, bug fix, and enhancement update (Oracle Linux 7) Oracle Linux Security Advisories (ELSA) · Nov 5, 2018
- ELSA-2018-4249 Important: openssl security update (Oracle Linux 7) Oracle Linux Security Advisories (ELSA) · Oct 12, 2018
- ALAS2-2018-1004 Moderate: openssl security update (Amazon Linux 2) Amazon Linux Security Center (ALAS) · Apr 26, 2018
References
- [debian-lts-announce] 20180728 [SECURITY] [DLA 1449-1] openssl security update mailing-list
- DSA-4355 vendor-advisory
- USN-3628-2 vendor-advisory
- GLSA-201811-21 vendor-advisory
- USN-3692-2 vendor-advisory
- RHSA-2018:3505 vendor-advisory
- 103766 vdb-entry
- USN-3692-1 vendor-advisory
- RHSA-2018:3221 vendor-advisory
- DSA-4348 vendor-advisory
- 1040685 vdb-entry
- USN-3628-1 vendor-advisory
- FEDORA-2019-db06efdea1 vendor-advisory
- FEDORA-2019-00c25b9379 vendor-advisory
- FEDORA-2019-9a0a7c0986 vendor-advisory
- RHSA-2019:3933 vendor-advisory
- RHSA-2019:3935 vendor-advisory
- RHSA-2019:3932 vendor-advisory
- https://www.oracle.com/security-alerts/cpuapr2020.html
- http://www.oracle.com/technetwork/security-advisory/cpuoct2018-4428296.html
- https://www.oracle.com/technetwork/security-advisory/cpujan2019-5072801.html
- https://www.oracle.com/technetwork/security-advisory/cpuapr2019-5072813.html
- https://www.oracle.com/technetwork/security-advisory/cpujul2019-5072835.html
- https://www.tenable.com/security/tns-2018-14
- https://securityadvisories.paloaltonetworks.com/Home/Detail/133
- https://www.tenable.com/security/tns-2018-13
- https://www.tenable.com/security/tns-2018-17
- https://www.tenable.com/security/tns-2018-12
- https://nodejs.org/en/blog/vulnerability/august-2018-security-releases/
- https://www.oracle.com//security-alerts/cpujul2021.html
- https://git.openssl.org/gitweb/?p=openssl.git%3Ba=commitdiff%3Bh=349a41da1ad88ad87825414752a8ff5fdd6a6c3f
- https://git.openssl.org/gitweb/?p=openssl.git%3Ba=commitdiff%3Bh=6939eab03a6e23d2bd2c3f5e34fe1d48e542e787
- https://www.openssl.org/news/secadv/20180416.txt
- https://security.netapp.com/advisory/ntap-20180726-0003/