Description
There is a carry propagating bug in the x86_64 Montgomery squaring procedure in OpenSSL before 1.0.2m and 1.1.0 before 1.1.0g. No EC algorithms are affected. Analysis suggests that attacks against RSA and DSA as a result of this defect would be very difficult to perform and are not believed likely. Attacks against DH are considered just feasible (although very difficult) because most of the work necessary to deduce information about a private key may be performed offline. The amount of resources required for such an attack would be very significant and likely only accessible to a limited number of attackers. An attacker would additionally need online access to an unpatched system using the target private key in a scenario with persistent DH parameters and a private key that is shared between multiple clients. This only affects processors that support the BMI1, BMI2 and ADX extensions like Intel Broadwell (5th generation) and later or AMD Ryzen.
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| OpenSSL Software Foundation | OpenSSL | 1.1.0 - 1.1.0f, 1.0.2 - 1.0.2l | — |
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 | 1.1.0g-1 | — |
| Debian 13 | openssl | 1.1.0g-1 | — |
| Debian 12 | openssl | 1.1.0g-1 | — |
| Debian 9 | openssl1.0 | 1.0.2l-2+deb9u1 | DSA-4017-1 |
Ubuntu
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 18.04 LTS | openssl | 1.0.2g-1ubuntu14 | — |
| Ubuntu 16.04 LTS | openssl | 1.0.2g-1ubuntu4.9 | USN-3475-1 |
| Ubuntu 14.04 LTS | openssl | 1.0.1f-1ubuntu2.23 | USN-3475-1 |
Red Hat
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| RHEL 7 | java-1.8.0-ibm +5 | 1:1.8.0.5.20-1jpp.1.el7 | RHSA-2018:2568 |
| RHEL 7 | openssl +4 | 1:1.0.2k-12.el7 | RHSA-2018:0998 |
| RHEL 6 | java-1.8.0-ibm +5 | 1:1.8.0.5.20-1jpp.1.el6_10 | RHSA-2018:2575 |
Show 2 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Red Hat Network Satellite 5 | java-1.8.0-ibm +1 | 1:1.8.0.5.20-1jpp.1.el6_10 | RHSA-2018:2713 |
| Red Hat JBoss Core Services 1 | jbcs-httpd24-apache-commons-daemon | 1.1.0-1.redhat_2.1.jbcs.el6 | RHSA-2018:2186, RHSA-2018:2185 |
| Red Hat JBoss Core Services 1 | jbcs-httpd24-apache-commons-daemon-jsvc | 1:1.1.0-1.redhat_2.jbcs.el6 | RHSA-2018:2186, RHSA-2018:2185 |
| Red Hat JBoss Core Services 1 | jbcs-httpd24-apr +1 | 1.6.3-14.jbcs.el6 | RHSA-2018:2186, RHSA-2018:2185 |
| Red Hat JBoss Core Services 1 | jbcs-httpd24-apr-util +8 | 1.6.1-9.jbcs.el6 | RHSA-2018:2186, RHSA-2018:2185 |
| Red Hat JBoss Core Services 1 | jbcs-httpd24-httpd +6 | 2.4.29-17.jbcs.el6 | RHSA-2018:2186, RHSA-2018:2185 |
| Red Hat JBoss Core Services 1 | jbcs-httpd24-mod_auth_kerb | 5.4-36.jbcs.el6 | RHSA-2018:2186, RHSA-2018:2185 |
| Red Hat JBoss Core Services 1 | jbcs-httpd24-mod_bmx | 0.9.6-17.GA.jbcs.el6 | RHSA-2018:2186, RHSA-2018:2185 |
| Red Hat JBoss Core Services 1 | jbcs-httpd24-mod_cluster-native | 1.3.8-1.Final_redhat_2.jbcs.el6 | RHSA-2018:2186, RHSA-2018:2185 |
| Red Hat JBoss Core Services 1 | jbcs-httpd24-mod_jk +2 | 1.2.43-1.redhat_1.jbcs.el6 | RHSA-2018:2186, RHSA-2018:2185 |
| Red Hat JBoss Core Services 1 | jbcs-httpd24-mod_rt | 2.4.1-19.GA.jbcs.el6 | RHSA-2018:2186, RHSA-2018:2185 |
| Red Hat JBoss Core Services 1 | jbcs-httpd24-mod_security | 2.9.1-23.GA.jbcs.el6 | RHSA-2018:2186, RHSA-2018:2185 |
| Red Hat JBoss Core Services 1 | jbcs-httpd24-mod_ssl +1 | 1:2.4.29-17.jbcs.el6 | RHSA-2018:2186, RHSA-2018:2185 |
| Red Hat JBoss Core Services 1 | jbcs-httpd24-nghttp2 +1 | 1.29.0-8.jbcs.el6 | RHSA-2018:2186, RHSA-2018:2185 |
| Red Hat JBoss Core Services 1 | jbcs-httpd24-openssl +4 | 1:1.0.2n-11.jbcs.el6 | RHSA-2018:2186, RHSA-2018:2185 |
SUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SLES 15 | java-1_8_0-ibm | 1.8.0_sr5.20-3.6.2 | SUSE-SU-2018:3082-1 |
| SLES 12 SP3 | java-1_8_0-ibm | 1.8.0_sr5.20-30.36.1 | SUSE-SU-2018:2839-1 |
| SLES 12 SP3 | openssl | 1.0.2j-60.16.1 | SUSE-SU-2017:3169-1 |
| SLES 12 SP2 | java-1_8_0-ibm | 1.8.0_sr5.20-30.36.1 | SUSE-SU-2018:2839-2, SUSE-SU-2018:2839-1 |
| SLES 12 SP2 | openssl | 1.0.2j-60.16.1 | SUSE-SU-2017:3169-1 |
| SLES 12 SP1 | java-1_8_0-ibm | 1.8.0_sr5.20-30.36.1 | SUSE-SU-2018:2839-1 |
| SLES 12 | nodejs4 | 4.8.7-15.8.1 | SUSE-SU-2018:0002-1 |
| SLES 12 | nodejs6 | 6.12.2-11.8.1 | SUSE-SU-2018:0293-1 |
Show 6 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SLES 11 SP4 | MozillaFirefox | 68.2.0-78.51.4 | SUSE-SU-2019:14246-1 |
| SLES 11 SP4 | MozillaFirefox-branding-SLED | 68-21.9.8 | SUSE-SU-2019:14246-1 |
| SLES 11 SP4 | firefox-atk | 2.26.1-2.8.4 | SUSE-SU-2019:14246-1 |
| SLES 11 SP4 | firefox-cairo | 1.15.10-2.13.4 | SUSE-SU-2019:14246-1 |
| SLES 11 SP4 | firefox-gdk-pixbuf | 2.36.11-2.8.4 | SUSE-SU-2019:14246-1 |
| SLES 11 SP4 | firefox-glib2 | 2.54.3-2.14.7 | SUSE-SU-2019:14246-1 |
| SLES 11 SP4 | firefox-gtk3 | 3.10.9-2.15.3 | SUSE-SU-2019:14246-1 |
| SLES 11 SP4 | firefox-harfbuzz | 1.7.5-2.7.4 | SUSE-SU-2019:14246-1 |
| SLES 11 SP4 | firefox-libffi | 3.2.1.git259-2.3.3 | SUSE-SU-2019:14246-1 |
| SLES 11 SP4 | firefox-libffi-gcc5 | 5.3.1+r233831-14.1 | SUSE-SU-2019:14246-1 |
| SLES 11 SP4 | firefox-pango | 1.40.14-2.7.4 | SUSE-SU-2019:14246-1 |
| SLES 11 SP4 | mozilla-nspr | 4.21-29.6.1 | SUSE-SU-2019:14246-1 |
| SLES 11 SP4 | mozilla-nss | 3.45-38.9.3 | SUSE-SU-2019:14246-1 |
| SLES for SAP 12 SP3 | java-1_8_0-ibm | 1.8.0_sr5.20-30.36.1 | SUSE-SU-2018:2839-1 |
| SLES for SAP 12 SP3 | openssl | 1.0.2j-60.16.1 | SUSE-SU-2017:3169-1 |
| SLES for SAP 12 SP2 | java-1_8_0-ibm | 1.8.0_sr5.20-30.36.1 | SUSE-SU-2018:2839-1 |
| SLES for SAP 12 SP2 | openssl | 1.0.2j-60.16.1 | SUSE-SU-2017:3169-1 |
| SLES for SAP 12 SP1 | java-1_8_0-ibm | 1.8.0_sr5.20-30.36.1 | SUSE-SU-2018:2839-1 |
| SUSE OpenStack Cloud 7 | java-1_8_0-ibm | 1.8.0_sr5.20-30.36.1 | SUSE-SU-2018:2839-1 |
| SUSE OpenStack Cloud 7 | nodejs6 | 6.12.2-11.8.1 | SUSE-SU-2018:0293-1 |
| SUSE Enterprise Storage 4 | java-1_8_0-ibm | 1.8.0_sr5.20-30.36.1 | SUSE-SU-2018:2839-1 |
| SUSE Enterprise Storage 4 | nodejs4 | 4.8.7-15.8.1 | SUSE-SU-2018:0002-1 |
| SUSE Enterprise Storage 4 | nodejs6 | 6.12.2-11.8.1 | SUSE-SU-2018:0293-1 |
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 |
Alpine
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Alpine v3.8 | openssl | 1.0.2m-r0 | — |
| Alpine v3.7 | openssl | 1.0.2m-r0 | — |
| Alpine v3.6 | openssl | 1.0.2m-r0 | — |
| Alpine v3.5 | openssl | 1.0.2m-r0 | — |
| Alpine v3.4 | openssl | 1.0.2m-r0 | — |
Show 1 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Alpine v3.3 | openssl | 1.0.2m-r0 | — |
Amazon Linux
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Amazon Linux 2 | openssl +4 | 1:1.0.2k-12.amzn2.0.1 | ALAS2-2018-1004 |
Azure Linux
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Azure Linux 3 | openssl-fips-provider | No fix yet | — |
Oracle Linux
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Oracle Linux 7 | openssl +4 | 1:1.0.2k-12.0.1.el7 | ELSA-2018-0998 |
Advisories 24
- RHSA-2018:2713 Red Hat Security Advisory: java-1.8.0-ibm security update Red Hat Security Advisories (RHSA) · Sep 21, 2026
- RHSA-2018:2568 Red Hat Security Advisory: java-1.8.0-ibm security update Red Hat Security Advisories (RHSA) · Sep 21, 2026
- RHSA-2018:2575 Red Hat Security Advisory: java-1.8.0-ibm security update Red Hat Security Advisories (RHSA) · Sep 21, 2026
- RHSA-2018:2186 Red Hat Security Advisory: Red Hat JBoss Core Services Apache HTTP Server 2.4.29 RHEL 6 security update Red Hat Security Advisories (RHSA) · Sep 21, 2026
- RHSA-2018:2185 Red Hat Security Advisory: Red Hat JBoss Core Services Apache HTTP Server 2.4.29 RHEL 7 security update Red Hat Security Advisories (RHSA) · Sep 21, 2026
- RHSA-2018:0998 Red Hat Security Advisory: openssl security and bug fix update Red Hat Security Advisories (RHSA) · Sep 21, 2026
- USN-3475-1 openssl vulnerabilities Ubuntu Security Notices (USN) · Apr 22, 2026
- DSA-4017-1 openssl1.0 - security update Debian Security (DSA / DLA) · Mar 9, 2026
- SUSE-SU-2018:3082-1 Security update for java-1_8_0-ibm SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2018:2839-2 Security update for java-1_8_0-ibm SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2017:3169-1 Security update for openssl SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2018:2839-1 Security update for java-1_8_0-ibm SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2018:0002-1 Security update for nodejs4 SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2018:0293-1 Security update for nodejs6 SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2019:14246-1 Security update for Mozilla Firefox 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
- WID-SEC-2024-0206 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
- openSUSE-SU-2024:11127-1 libopenssl-1_1-devel-1.1.1l-1.2 on GA media SUSE / openSUSE Security Updates · May 7, 2025
- WID-SEC-2024-2008 Oracle Virtualization: Mehrere Schwachstellen BSI CERT-Bund (WID) · Sep 2, 2024
- NCSC-2024-0239 Kwetsbaarheden verholpen in Solarwinds Platform NCSC-NL (Netherlands) · Jun 7, 2024
- WID-SEC-2023-1594 IBM Tivoli Network Manager: Mehrere Schwachstellen BSI CERT-Bund (WID) · Jun 28, 2023
- ALAS2-2018-1004 Moderate: openssl security update (Amazon Linux 2) Amazon Linux Security Center (ALAS) · Apr 26, 2018
- ELSA-2018-0998 Moderate: openssl security and bug fix update (Oracle Linux 7) Oracle Linux Security Advisories (ELSA) · Apr 16, 2018
References
- https://security.netapp.com/advisory/ntap-20171107-0002/
- RHSA-2018:2185 vendor-advisory
- https://github.com/openssl/openssl/commit/4443cf7aa0099e5ce615c18cee249fff77fb0871
- RHSA-2018:2186 vendor-advisory
- http://www.oracle.com/technetwork/security-advisory/cpujul2018-4258247.html
- http://www.oracle.com/technetwork/security-advisory/cpujan2018-3236628.html
- RHSA-2018:2713 vendor-advisory
- https://www.oracle.com/technetwork/security-advisory/cpujan2019-5072801.html
- DSA-4018 vendor-advisory
- GLSA-201712-03 vendor-advisory
- RHSA-2018:0998 vendor-advisory
- RHSA-2018:2575 vendor-advisory
- https://www.tenable.com/security/tns-2017-15
- http://www.oracle.com/technetwork/security-advisory/cpuapr2018-3678067.html
- 101666 vdb-entry
- RHSA-2018:2568 vendor-advisory
- https://www.openssl.org/news/secadv/20171102.txt
- http://www.oracle.com/technetwork/security-advisory/cpuoct2018-4428296.html
- DSA-4017 vendor-advisory
- https://www.tenable.com/security/tns-2017-14
- FreeBSD-SA-17:11 vendor-advisory
- 1039727 vdb-entry
- https://support.hpe.com/hpsc/doc/public/display?docLocale=en_US&docId=emr_na-hpesbst03881en_us
- RHSA-2018:2187 vendor-advisory
- https://security.netapp.com/advisory/ntap-20180117-0002/
- https://www.oracle.com/technetwork/security-advisory/cpuapr2019-5072813.html
- https://www.oracle.com/technetwork/security-advisory/cpujul2019-5072835.html