Description
In situations where an attacker receives automated notification of the success or failure of a decryption attempt an attacker, after sending a very large number of messages to be decrypted, can recover a CMS/PKCS7 transported encryption key or decrypt any RSA encrypted message that was encrypted with the public RSA key, using a Bleichenbacher padding oracle attack. Applications are not affected if they use a certificate together with the private RSA key to the CMS_decrypt or PKCS7_decrypt functions to select the correct recipient info to decrypt. Fixed in OpenSSL 1.1.1d (Affected 1.1.1-1.1.1c). Fixed in OpenSSL 1.1.0l (Affected 1.1.0-1.1.0k). Fixed in OpenSSL 1.0.2t (Affected 1.0.2-1.0.2s).
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| OpenSSL | OpenSSL | Fixed in OpenSSL 1.1.1d (Affected 1.1.1-1.1.1c), Fixed in OpenSSL 1.1.0l (Affected 1.1.0-1.1.0k), Fixed in OpenSSL 1.0.2t (Affected 1.0.2-1.0.2s) | — |
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 | 1.1.1d-1 | — |
| Debian 13 | openssl | 1.1.1d-1 | — |
| Debian 12 | openssl | 1.1.1d-1 | — |
| Debian 10 | openssl | 1.1.1d-0+deb10u1 | DSA-4539-1 |
| Debian 9 | openssl | 1.1.0l-1~deb9u1 | DSA-4539-1 |
| Debian 9 | openssl1.0 | 1.0.2t-1~deb9u1 | DSA-4540-1 |
Show 1 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Debian 8 | openssl | 1.0.1t-1+deb8u12 | DLA-1932-1 |
Ubuntu
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 18.04 LTS | openssl | 1.1.1-1ubuntu2.1~18.04.6 | USN-4376-1 |
| Ubuntu 18.04 LTS | openssl1.0 | 1.0.2n-1ubuntu5.4 | USN-4504-1 |
| Ubuntu 16.04 LTS | openssl | 1.0.2g-1ubuntu4.16 | USN-4504-1, USN-4376-1 |
Show 8 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu Pro FIPS 18.04 LTS | openssl | No fix yet | — |
| Ubuntu Pro FIPS 16.04 LTS | openssl | No fix yet | — |
| Ubuntu Pro FIPS-updates 18.04 LTS | openssl | 1.1.1-1ubuntu2.fips.2.1~18.04.6.1 | — |
| Ubuntu Pro FIPS-updates 16.04 LTS | openssl | 1.0.2g-1ubuntu4.fips.4.16.1 | — |
| Ubuntu Pro 22.04 LTS | nodejs | No fix yet | — |
| Ubuntu Pro 18.04 LTS | edk2 | No fix yet | — |
| Ubuntu Pro 16.04 LTS | edk2 | No fix yet | — |
| Ubuntu Pro 14.04 LTS | openssl | 1.0.1f-1ubuntu2.27+esm1 | USN-4376-2 |
Red Hat
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| RHEL 8 | openssl +3 | 1:1.1.1c-15.el8 | RHSA-2020:1840 |
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 | 1.6.3-86.jbcs.el6 | RHSA-2020:1337 |
| Red Hat JBoss Core Services 1 | jbcs-httpd24-brotli +1 | 1.0.6-21.jbcs.el6 | RHSA-2020:1337 |
| Red Hat JBoss Core Services 1 | jbcs-httpd24-httpd +6 | 2.4.37-52.jbcs.el6 | RHSA-2020:1337 |
| Red Hat JBoss Core Services 1 | jbcs-httpd24-mod_cluster-native | 1.3.12-41.Final_redhat_2.jbcs.el6 | RHSA-2020:1337 |
| Red Hat JBoss Core Services 1 | jbcs-httpd24-mod_http2 | 1.11.3-22.jbcs.el6 | RHSA-2020:1337 |
| Red Hat JBoss Core Services 1 | jbcs-httpd24-mod_ssl +1 | 1:2.4.37-52.jbcs.el6 | RHSA-2020:1337 |
| Red Hat JBoss Core Services 1 | jbcs-httpd24-openssl +4 | 1:1.1.1c-16.jbcs.el6 | RHSA-2020:1337 |
SUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SLES 15 SP1 | openssl-1_0_0 | 1.0.2p-3.22.1 | SUSE-SU-2019:2561-1 |
| SLES 15 SP1 | openssl-1_1 | 1.1.0i-14.3.1 | SUSE-SU-2019:2403-1 |
| SLES 15 | openssl-1_0_0 | 1.0.2p-3.22.1 | SUSE-SU-2019:2561-1 |
| SLES 15 | openssl-1_1 | 1.1.0i-4.24.1 | SUSE-SU-2019:2410-1 |
| SLES 12 SP5 | openssl-1_1 | 1.1.1d-2.20.1 | SUSE-SU-2020:0099-1 |
| SLES 12 SP4 | compat-openssl098 | 0.9.8j-106.15.1 | SUSE-SU-2019:2558-1 |
| SLES 12 SP4 | openssl-1_0_0 | 1.0.2p-3.11.1 | SUSE-SU-2019:2504-1 |
| SLES 12 SP4 | openssl-1_1 | 1.1.1d-2.20.1 | SUSE-SU-2020:0099-1 |
| SLES 12 SP3 | openssl | 1.0.2j-60.55.1 | SUSE-SU-2019:2413-1 |
Show 18 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SLES 12 SP2 | openssl | 1.0.2j-60.55.1 | SUSE-SU-2019:2413-1 |
| SLES 12 SP1 | openssl | 1.0.1i-54.29.1 | SUSE-SU-2019:2397-1 |
| SLES 12 | compat-openssl098 | 0.9.8j-106.15.1 | SUSE-SU-2020:2634-1, SUSE-SU-2019:2558-1 |
| SLES 11 SP4 | openssl | 0.9.8j-0.106.25.1 | SUSE-SU-2019:14249-1, SUSE-SU-2019:14174-1 |
| SLES 11 | openssl1 | 1.0.1g-0.58.21.1 | SUSE-SU-2019:14171-1 |
| SLES for SAP 12 SP5 | compat-openssl098 | 0.9.8j-106.21.1 | SUSE-SU-2020:2634-1 |
| SLES for SAP 12 SP5 | openssl-1_1 | 1.1.1d-2.20.1 | SUSE-SU-2020:0099-1 |
| SLES for SAP 12 SP4 | compat-openssl098 | 0.9.8j-106.15.1 | SUSE-SU-2020:2634-1, SUSE-SU-2019:2558-1 |
| SLES for SAP 12 SP4 | openssl-1_0_0 | 1.0.2p-3.11.1 | SUSE-SU-2019:2504-1 |
| SLES for SAP 12 SP4 | openssl-1_1 | 1.1.1d-2.20.1 | SUSE-SU-2020:0099-1 |
| SLES for SAP 12 SP3 | compat-openssl098 | 0.9.8j-106.15.1 | SUSE-SU-2020:2634-1, SUSE-SU-2019:2558-1 |
| SLES for SAP 12 SP3 | openssl | 1.0.2j-60.55.1 | SUSE-SU-2019:2413-1 |
| SLES for SAP 12 SP2 | compat-openssl098 | 0.9.8j-106.15.1 | SUSE-SU-2020:2634-1, SUSE-SU-2019:2558-1 |
| SLES for SAP 12 SP2 | openssl | 1.0.2j-60.55.1 | SUSE-SU-2019:2413-1 |
| SLES for SAP 12 SP1 | compat-openssl098 | 0.9.8j-106.15.1 | SUSE-SU-2019:2558-1 |
| SLES for SAP 12 SP1 | openssl | 1.0.1i-54.29.1 | SUSE-SU-2019:2397-1 |
| SUSE OpenStack Cloud Crowbar 8 | openssl | 1.0.2j-60.55.1 | SUSE-SU-2019:2413-1 |
| SUSE OpenStack Cloud 8 | openssl | 1.0.2j-60.55.1 | SUSE-SU-2019:2413-1 |
| SUSE OpenStack Cloud 7 | openssl | 1.0.2j-60.55.1 | SUSE-SU-2019:2413-1 |
| SUSE Linux Enterprise Point of Sale 11 SP3 | openssl | 0.9.8j-0.106.25.1 | SUSE-SU-2019:14249-1, SUSE-SU-2019:14174-1 |
| SUSE HPE Helion OpenStack 8 | openssl | 1.0.2j-60.55.1 | SUSE-SU-2019:2413-1 |
| SUSE Enterprise Storage 6 | openssl-1_0_0 | 1.0.2p-3.22.1 | SUSE-SU-2019:2561-1 |
| SUSE Enterprise Storage 5 | openssl | 1.0.2j-60.55.1 | SUSE-SU-2019:2413-1 |
| SUSE Enterprise Storage 4 | openssl | 1.0.2j-60.55.1 | SUSE-SU-2019:2413-1 |
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 15.1 | openssl-1_0_0 | 1.0.2p-lp151.5.10.1 | openSUSE-SU-2019:2269-1 |
| openSUSE Leap 15.1 | openssl-1_1 | 1.1.0i-lp151.8.3.1 | openSUSE-SU-2019:2158-1 |
| openSUSE Leap 15.0 | openssl-1_0_0 | 1.0.2p-lp150.2.19.1 | openSUSE-SU-2019:2268-1 |
| openSUSE Leap 15.0 | openssl-1_1 | 1.1.0i-lp150.3.25.1 | openSUSE-SU-2019:2189-1 |
Alpine
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Alpine v3.24 | openssl | 1.1.1d-r1 | — |
| Alpine v3.23 | openssl | 1.1.1d-r1 | — |
| Alpine v3.22 | openssl | 1.1.1d-r1 | — |
| Alpine v3.21 | openssl | 1.1.1d-r1 | — |
| Alpine v3.20 | openssl | 1.1.1d-r1 | — |
Show 13 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Alpine v3.19 | openssl | 1.1.1d-r1 | — |
| Alpine v3.18 | openssl +1 | 1.1.1d-r1 | — |
| Alpine v3.17 | openssl +1 | 1.1.1d-r1 | — |
| Alpine v3.16 | openssl +1 | 1.1.1d-r1 | — |
| Alpine v3.15 | openssl +1 | 1.1.1d-r1 | — |
| Alpine v3.14 | openssl | 1.1.1d-r1 | — |
| Alpine v3.13 | openssl | 1.1.1d-r1 | — |
| Alpine v3.12 | openssl | 1.1.1d-r1 | — |
| Alpine v3.11 | openssl | 1.1.1d-r1 | — |
| Alpine v3.10 | openssl | 1.1.1d-r0 | — |
| Alpine v3.9 | openssl | 1.1.1d-r0 | — |
| Alpine v3.8 | openssl | 1.0.2t-r0 | — |
| Alpine v3.7 | openssl | 1.0.2t-r0 | — |
Amazon Linux
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Amazon Linux 2 | openssl +4 | 1:1.0.2k-19.amzn2.0.3 | ALAS2-2020-1406 |
| Amazon Linux 2 | openssl11 +3 | 1:1.1.1c-15.amzn2.0.1 | ALAS2-2020-1456 |
Oracle Linux
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Oracle Linux 8 | openssl +3 | 1:1.1.1c-15.el8 | ELSA-2020-1840 |
Advisories 33
- WID-SEC-2026-4026 Red Hat OpenShift: Mehrere Schwachstellen BSI CERT-Bund (WID) · Oct 18, 2026
- RHSA-2020:1840 Red Hat Security Advisory: openssl security and bug fix update Red Hat Security Advisories (RHSA) · Sep 21, 2026
- RHSA-2020:1337 Red Hat Security Advisory: Red Hat JBoss Core Services Apache HTTP Server 2.4.37 SP2 security update Red Hat Security Advisories (RHSA) · Sep 21, 2026
- USN-4376-2 openssl vulnerabilities Ubuntu Security Notices (USN) · Apr 27, 2026
- USN-4504-1 openssl, openssl1.0 vulnerabilities Ubuntu Security Notices (USN) · Apr 27, 2026
- USN-4376-1 openssl vulnerabilities Ubuntu Security Notices (USN) · Apr 27, 2026
- DSA-4539-1 openssl - security update Debian Security (DSA / DLA) · Mar 9, 2026
- DSA-4540-1 openssl1.0 - security update Debian Security (DSA / DLA) · Mar 9, 2026
- DLA-1932-1 openssl - security update Debian Security (DSA / DLA) · Mar 9, 2026
- SUSE-SU-2019:14249-1 Security update for openssl SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2019:2504-1 Security update for openssl-1_0_0 SUSE / openSUSE Security Updates · Feb 4, 2026
- openSUSE-SU-2019:2158-1 Security update for openssl-1_1 SUSE / openSUSE Security Updates · Feb 4, 2026
- openSUSE-SU-2019:2269-1 Security update for openssl-1_0_0 SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2019:14174-1 Security update for openssl SUSE / openSUSE Security Updates · Feb 4, 2026
- openSUSE-SU-2019:2189-1 Security update for openssl-1_1 SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2019:2397-1 Security update for openssl SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2020:0099-1 Security update for openssl-1_1 SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2019:2561-1 Security update for openssl-1_0_0 SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2019:2558-1 Security update for compat-openssl098 SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2019:14171-1 Security update for openssl1 SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2019:2413-1 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-2019:2403-1 Security update for openssl-1_1 SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2019:2410-1 Security update for openssl-1_1 SUSE / openSUSE Security Updates · Feb 4, 2026
- WID-SEC-2023-1762 OpenSSL: Schwachstelle ermöglicht Umgehen von Sicherheitsvorkehrungen BSI CERT-Bund (WID) · Oct 20, 2025
- openSUSE-SU-2019:2268-1 Security update for openssl-1_0_0 SUSE / openSUSE Security Updates · May 7, 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-2020:2634-1 Security update for compat-openssl098 SUSE / openSUSE Security Updates · May 2, 2025
- WID-SEC-2023-1049 Oracle MySQL: Mehrere Schwachstellen BSI CERT-Bund (WID) · Apr 20, 2023
- ICSA-21-336-06 Hitachi Energy APM Edge CISA ICS & IT advisories · Dec 2, 2021
- ALAS2-2020-1456 Moderate: openssl11 security update (Amazon Linux 2) Amazon Linux Security Center (ALAS) · Jul 17, 2020
- ELSA-2020-1840 Moderate: openssl security and bug fix update (Oracle Linux 8) Oracle Linux Security Advisories (ELSA) · May 5, 2020
- ALAS2-2020-1406 Important: openssl security update (Amazon Linux 2) Amazon Linux Security Center (ALAS) · Mar 25, 2020
References
- 20190912 [slackware-security] openssl (SSA:2019-254-03) mailing-list
- openSUSE-SU-2019:2158 vendor-advisory
- FEDORA-2019-d15aac6c4e vendor-advisory
- openSUSE-SU-2019:2189 vendor-advisory
- [debian-lts-announce] 20190925 [SECURITY] [DLA 1932-1] openssl security update mailing-list
- FEDORA-2019-d51641f152 vendor-advisory
- 20191001 [SECURITY] [DSA 4539-1] openssl security update mailing-list
- 20191001 [SECURITY] [DSA 4540-1] openssl1.0 security update mailing-list
- DSA-4539 vendor-advisory
- DSA-4540 vendor-advisory
- openSUSE-SU-2019:2268 vendor-advisory
- openSUSE-SU-2019:2269 vendor-advisory
- GLSA-201911-04 vendor-advisory
- USN-4376-1 vendor-advisory
- https://www.oracle.com/security-alerts/cpuapr2020.html
- https://www.oracle.com/security-alerts/cpujul2020.html
- https://www.oracle.com/technetwork/security-advisory/cpuoct2019-5072832.html
- https://www.oracle.com/security-alerts/cpujan2020.html
- https://www.openssl.org/news/secadv/20190910.txt
- http://packetstormsecurity.com/files/154467/Slackware-Security-Advisory-openssl-Updates.html
- https://security.netapp.com/advisory/ntap-20190919-0002/
- https://www.tenable.com/security/tns-2019-09
- https://git.openssl.org/gitweb/?p=openssl.git%3Ba=commitdiff%3Bh=08229ad838c50f644d7e928e2eef147b4308ad64
- https://git.openssl.org/gitweb/?p=openssl.git%3Ba=commitdiff%3Bh=631f94db0065c78181ca9ba5546ebc8bb3884b97
- https://git.openssl.org/gitweb/?p=openssl.git%3Ba=commitdiff%3Bh=e21f8cf78a125cd3c8c0d1a1a6c8bb0b901f893f
- https://support.f5.com/csp/article/K97324400?utm_source=f5support&%3Butm_medium=RSS
- USN-4376-2 vendor-advisory
- USN-4504-1 vendor-advisory
- https://www.oracle.com/security-alerts/cpuoct2020.html
- https://kc.mcafee.com/corporate/index?page=content&id=SB10365