Cache timing vulnerability in RSA Key Generation
Published Apr 16, 2018
5.9
MEDIUMCVSS 3.0
EPSS 11.60%
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
-
- Version Fixed in OpenSSL 1.0.2p-dev (Affected 1.0.2b-1.0.2o)StatusaffectedConstraints-
- Version Fixed in OpenSSL 1.1.0i-dev (Affected 1.1.0-1.1.0h)StatusaffectedConstraints-
- Version
Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).
Configuration 1
Configuration 2
- 14.04
- 16.04
- 17.10
No data.
JBoss Core Services on RHEL 6
jbcs-httpd24-apr-0:1.6.3-63.jbcs.el6
Fixed · RHSA-2019:3932
JBoss Core Services on RHEL 6
jbcs-httpd24-apr-util-0:1.6.1-48.jbcs.el6
Fixed · RHSA-2019:3932
JBoss Core Services on RHEL 6
jbcs-httpd24-brotli-0:1.0.6-7.jbcs.el6
Fixed · RHSA-2019:3932
JBoss Core Services on RHEL 6
jbcs-httpd24-curl-0:7.64.1-14.jbcs.el6
Fixed · RHSA-2019:3932
JBoss Core Services on RHEL 6
jbcs-httpd24-httpd-0:2.4.37-33.jbcs.el6
Fixed · RHSA-2019:3932
JBoss Core Services on RHEL 6
jbcs-httpd24-jansson-0:2.11-20.jbcs.el6
Fixed · RHSA-2019:3932
JBoss Core Services on RHEL 6
jbcs-httpd24-mod_cluster-native-0:1.3.12-9.Final_redhat_2.jbcs.el6
Fixed · RHSA-2019:3932
JBoss Core Services on RHEL 6
jbcs-httpd24-mod_jk-0:1.2.46-22.redhat_1.jbcs.el6
Fixed · RHSA-2019:3932
JBoss Core Services on RHEL 6
jbcs-httpd24-mod_security-0:2.9.2-16.GA.jbcs.el6
Fixed · RHSA-2019:3932
JBoss Core Services on RHEL 6
jbcs-httpd24-nghttp2-0:1.39.2-4.jbcs.el6
Fixed · RHSA-2019:3932
JBoss Core Services on RHEL 6
jbcs-httpd24-openssl-1:1.1.1-25.jbcs.el6
Fixed · RHSA-2019:3932
JBoss Core Services on RHEL 7
jbcs-httpd24-apr-0:1.6.3-63.jbcs.el7
Fixed · RHSA-2019:3933
JBoss Core Services on RHEL 7
jbcs-httpd24-apr-util-0:1.6.1-48.jbcs.el7
Fixed · RHSA-2019:3933
JBoss Core Services on RHEL 7
jbcs-httpd24-brotli-0:1.0.6-7.jbcs.el7
Fixed · RHSA-2019:3933
JBoss Core Services on RHEL 7
jbcs-httpd24-curl-0:7.64.1-14.jbcs.el7
Fixed · RHSA-2019:3933
JBoss Core Services on RHEL 7
jbcs-httpd24-httpd-0:2.4.37-33.jbcs.el7
Fixed · RHSA-2019:3933
JBoss Core Services on RHEL 7
jbcs-httpd24-jansson-0:2.11-20.jbcs.el7
Fixed · RHSA-2019:3933
JBoss Core Services on RHEL 7
jbcs-httpd24-mod_cluster-native-0:1.3.12-9.Final_redhat_2.jbcs.el7
Fixed · RHSA-2019:3933
JBoss Core Services on RHEL 7
jbcs-httpd24-mod_jk-0:1.2.46-22.redhat_1.jbcs.el7
Fixed · RHSA-2019:3933
JBoss Core Services on RHEL 7
jbcs-httpd24-mod_security-0:2.9.2-16.GA.jbcs.el7
Fixed · RHSA-2019:3933
JBoss Core Services on RHEL 7
jbcs-httpd24-nghttp2-0:1.39.2-4.jbcs.el7
Fixed · RHSA-2019:3933
JBoss Core Services on RHEL 7
jbcs-httpd24-openssl-1:1.1.1-25.jbcs.el7
Fixed · RHSA-2019:3933
Red Hat Enterprise Linux 7
openssl-1:1.0.2k-16.el7
Fixed · RHSA-2018:3221
Red Hat JBoss Core Services
openssl
Fixed · RHSA-2019:3935
Red Hat Enterprise Linux 5
openssl
Will not fix
Red Hat Enterprise Linux 5
openssl097a
Will not fix
Red Hat Enterprise Linux 6
openssl
Fix deferred
Red Hat Enterprise Linux 6
openssl098e
Will not fix
Red Hat Enterprise Linux 7
OVMF
Not affected
Red Hat Enterprise Linux 7
openssl098e
Will not fix
Red Hat Enterprise Linux 8
openssl
Not affected
Red Hat JBoss Enterprise Application Platform 5
openssl
Will not fix
Red Hat JBoss Enterprise Application Platform 6
openssl
Will not fix
Red Hat JBoss Enterprise Web Server 2
openssl
Will not fix
Red Hat JBoss Web Server 3
openssl
Affected
| Product | Package | State | Advisory |
|---|---|---|---|
| JBoss Core Services on RHEL 6 | jbcs-httpd24-apr-0:1.6.3-63.jbcs.el6 | Fixed | RHSA-2019:3932 |
| JBoss Core Services on RHEL 6 | jbcs-httpd24-apr-util-0:1.6.1-48.jbcs.el6 | Fixed | RHSA-2019:3932 |
| JBoss Core Services on RHEL 6 | jbcs-httpd24-brotli-0:1.0.6-7.jbcs.el6 | Fixed | RHSA-2019:3932 |
| JBoss Core Services on RHEL 6 | jbcs-httpd24-curl-0:7.64.1-14.jbcs.el6 | Fixed | RHSA-2019:3932 |
| JBoss Core Services on RHEL 6 | jbcs-httpd24-httpd-0:2.4.37-33.jbcs.el6 | Fixed | RHSA-2019:3932 |
| JBoss Core Services on RHEL 6 | jbcs-httpd24-jansson-0:2.11-20.jbcs.el6 | Fixed | RHSA-2019:3932 |
| JBoss Core Services on RHEL 6 | jbcs-httpd24-mod_cluster-native-0:1.3.12-9.Final_redhat_2.jbcs.el6 | Fixed | RHSA-2019:3932 |
| JBoss Core Services on RHEL 6 | jbcs-httpd24-mod_jk-0:1.2.46-22.redhat_1.jbcs.el6 | Fixed | RHSA-2019:3932 |
| JBoss Core Services on RHEL 6 | jbcs-httpd24-mod_security-0:2.9.2-16.GA.jbcs.el6 | Fixed | RHSA-2019:3932 |
| JBoss Core Services on RHEL 6 | jbcs-httpd24-nghttp2-0:1.39.2-4.jbcs.el6 | Fixed | RHSA-2019:3932 |
| JBoss Core Services on RHEL 6 | jbcs-httpd24-openssl-1:1.1.1-25.jbcs.el6 | Fixed | RHSA-2019:3932 |
| JBoss Core Services on RHEL 7 | jbcs-httpd24-apr-0:1.6.3-63.jbcs.el7 | Fixed | RHSA-2019:3933 |
| JBoss Core Services on RHEL 7 | jbcs-httpd24-apr-util-0:1.6.1-48.jbcs.el7 | Fixed | RHSA-2019:3933 |
| JBoss Core Services on RHEL 7 | jbcs-httpd24-brotli-0:1.0.6-7.jbcs.el7 | Fixed | RHSA-2019:3933 |
| JBoss Core Services on RHEL 7 | jbcs-httpd24-curl-0:7.64.1-14.jbcs.el7 | Fixed | RHSA-2019:3933 |
| JBoss Core Services on RHEL 7 | jbcs-httpd24-httpd-0:2.4.37-33.jbcs.el7 | Fixed | RHSA-2019:3933 |
| JBoss Core Services on RHEL 7 | jbcs-httpd24-jansson-0:2.11-20.jbcs.el7 | Fixed | RHSA-2019:3933 |
| JBoss Core Services on RHEL 7 | jbcs-httpd24-mod_cluster-native-0:1.3.12-9.Final_redhat_2.jbcs.el7 | Fixed | RHSA-2019:3933 |
| JBoss Core Services on RHEL 7 | jbcs-httpd24-mod_jk-0:1.2.46-22.redhat_1.jbcs.el7 | Fixed | RHSA-2019:3933 |
| JBoss Core Services on RHEL 7 | jbcs-httpd24-mod_security-0:2.9.2-16.GA.jbcs.el7 | Fixed | RHSA-2019:3933 |
| JBoss Core Services on RHEL 7 | jbcs-httpd24-nghttp2-0:1.39.2-4.jbcs.el7 | Fixed | RHSA-2019:3933 |
| JBoss Core Services on RHEL 7 | jbcs-httpd24-openssl-1:1.1.1-25.jbcs.el7 | Fixed | RHSA-2019:3933 |
| Red Hat Enterprise Linux 7 | openssl-1:1.0.2k-16.el7 | Fixed | RHSA-2018:3221 |
| Red Hat JBoss Core Services | openssl | Fixed | RHSA-2019:3935 |
| Red Hat Enterprise Linux 5 | openssl | Will not fix | n/a |
| Red Hat Enterprise Linux 5 | openssl097a | Will not fix | n/a |
| Red Hat Enterprise Linux 6 | openssl | Fix deferred | n/a |
| Red Hat Enterprise Linux 6 | openssl098e | Will not fix | n/a |
| Red Hat Enterprise Linux 7 | OVMF | Not affected | n/a |
| Red Hat Enterprise Linux 7 | openssl098e | Will not fix | n/a |
| Red Hat Enterprise Linux 8 | openssl | Not affected | n/a |
| Red Hat JBoss Enterprise Application Platform 5 | openssl | Will not fix | n/a |
| Red Hat JBoss Enterprise Application Platform 6 | openssl | Will not fix | n/a |
| Red Hat JBoss Enterprise Web Server 2 | openssl | Will not fix | n/a |
| Red Hat JBoss Web Server 3 | openssl | Affected | n/a |
No package ranges for this CVE.
Remediation
No remediation recorded yet.
Metrics
No CVSS v4.0 score for this CVE.
No CVSS v3.1 score for this CVE.
CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N
1 other source (Red Hat) ▾
CVSS:3.0/AV:L/AC:H/PR:L/UI:R/S:U/C:L/I:L/A:N
AV:N/AC:M/Au:N/C:P/I:N/A:N
This CVE is not in the KEV list.
No CISA SSVC assessment for this CVE yet.
Estimated probability of exploitation in the wild in the next 30 days (FIRST EPSS). As of Oct 1, 2026.
Score over time
2021–2026- EPSS v1
- EPSS v2
- EPSS v3
- EPSS v4
- EPSS v5
Percentile over time
- EPSS v1
- EPSS v2
- EPSS v3
- EPSS v4
- EPSS v5
Table of values (64 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 1, 2026 | 11.60% (0.11597) | 95.92th | v5 (v2026.06.15) |
| Jun 15, 2026 | 12.20% (0.12197) | 95.62th | v5 (v2026.06.15) |
| Mar 24, 2026 | 38.12% (0.38121) | 97.18th | v4 (v2025.03.14) |
| Mar 4, 2026 | 36.58% (0.36582) | 97.05th | v4 (v2025.03.14) |
| Mar 1, 2026 | 26.29% (0.26293) | 96.23th | v4 (v2025.03.14) |
| Feb 4, 2026 | 37.09% (0.37092) | 97.05th | v4 (v2025.03.14) |
| Feb 1, 2026 | 26.73% (0.26735) | 96.23th | v4 (v2025.03.14) |
| Jan 4, 2026 | 37.09% (0.37092) | 97.02th | v4 (v2025.03.14) |
| Jan 1, 2026 | 26.73% (0.26735) | 96.21th | v4 (v2025.03.14) |
| Dec 28, 2025 | 37.09% (0.37092) | 97.01th | v4 (v2025.03.14) |
| Dec 27, 2025 | 34.37% (0.34370) | 96.86th | v4 (v2025.03.14) |
| Dec 4, 2025 | 37.09% (0.37092) | 96.98th | v4 (v2025.03.14) |
| Dec 1, 2025 | 26.73% (0.26735) | 96.18th | v4 (v2025.03.14) |
| Nov 21, 2025 | 37.09% (0.37092) | 96.98th | v4 (v2025.03.14) |
| Nov 18, 2025 | 5.60% (0.05599) | 89.36th | v4 (v2025.03.14) |
| Nov 4, 2025 | 37.09% (0.37092) | 96.97th | v4 (v2025.03.14) |
| Nov 1, 2025 | 26.73% (0.26735) | 96.15th | v4 (v2025.03.14) |
| Oct 31, 2025 | 37.09% (0.37092) | 96.97th | v4 (v2025.03.14) |
| Oct 28, 2025 | 34.17% (0.34170) | 96.76th | v4 (v2025.03.14) |
| Oct 27, 2025 | 31.53% (0.31530) | 96.58th | v4 (v2025.03.14) |
| Oct 4, 2025 | 34.17% (0.34170) | 96.83th | v4 (v2025.03.14) |
| Oct 1, 2025 | 24.24% (0.24237) | 95.92th | v4 (v2025.03.14) |
| Sep 16, 2025 | 31.53% (0.31530) | 96.64th | v4 (v2025.03.14) |
| Sep 5, 2025 | 28.59% (0.28585) | 96.37th | v4 (v2025.03.14) |
| Sep 1, 2025 | 16.04% (0.16039) | 94.56th | v4 (v2025.03.14) |
| Aug 6, 2025 | 28.59% (0.28585) | 96.33th | v4 (v2025.03.14) |
| Aug 1, 2025 | 16.04% (0.16039) | 94.55th | v4 (v2025.03.14) |
| Jul 30, 2025 | 28.59% (0.28585) | 96.34th | v4 (v2025.03.14) |
| Jul 13, 2025 | 31.12% (0.31116) | 96.53th | v4 (v2025.03.14) |
| Jul 12, 2025 | 28.19% (0.28190) | 96.27th | v4 (v2025.03.14) |
| Jul 6, 2025 | 25.45% (0.25448) | 95.95th | v4 (v2025.03.14) |
| Jul 4, 2025 | 28.23% (0.28225) | 96.27th | v4 (v2025.03.14) |
| Jul 1, 2025 | 24.24% (0.24237) | 95.84th | v4 (v2025.03.14) |
| Jun 5, 2025 | 28.23% (0.28225) | 96.22th | v4 (v2025.03.14) |
| Jun 1, 2025 | 24.24% (0.24237) | 95.81th | v4 (v2025.03.14) |
| May 6, 2025 | 28.23% (0.28225) | 96.18th | v4 (v2025.03.14) |
| May 1, 2025 | 24.24% (0.24237) | 95.77th | v4 (v2025.03.14) |
| Apr 19, 2025 | 28.23% (0.28225) | 96.17th | v4 (v2025.03.14) |
| Apr 18, 2025 | 24.24% (0.24237) | 95.72th | v4 (v2025.03.14) |
| Apr 17, 2025 | 28.23% (0.28225) | 96.16th | v4 (v2025.03.14) |
| Apr 16, 2025 | 24.24% (0.24237) | 95.71th | v4 (v2025.03.14) |
| Apr 7, 2025 | 28.23% (0.28225) | 96.09th | v4 (v2025.03.14) |
| Apr 6, 2025 | 24.24% (0.24237) | 95.64th | v4 (v2025.03.14) |
| Mar 30, 2025 | 28.23% (0.28225) | 96.08th | v4 (v2025.03.14) |
| Mar 29, 2025 | 22.08% (0.22083) | 93.15th | v4 (v2025.03.14) |
| Mar 19, 2025 | 28.23% (0.28225) | 95.89th | v4 (v2025.03.14) |
| Mar 18, 2025 | 24.24% (0.24237) | 95.66th | v4 (v2025.03.14) |
| Mar 17, 2025 | 28.23% (0.28225) | 96.08th | v4 (v2025.03.14) |
| Dec 12, 2024 | 1.04% (0.01040) | 84.62th | v3 (v2023.03.01) |
| Jul 20, 2024 | 1.04% (0.01040) | 84.13th | v3 (v2023.03.01) |
| Nov 8, 2023 | 1.03% (0.01026) | 82.08th | v3 (v2023.03.01) |
| Oct 17, 2023 | 0.62% (0.00620) | 76.45th | v3 (v2023.03.01) |
| Sep 7, 2023 | 0.73% (0.00729) | 78.40th | v3 (v2023.03.01) |
| Jul 8, 2023 | 0.90% (0.00897) | 80.51th | v3 (v2023.03.01) |
| Apr 10, 2023 | 0.68% (0.00676) | 76.86th | v3 (v2023.03.01) |
| Mar 7, 2023 | 0.56% (0.00564) | 74.36th | v3 (v2023.03.01) |
| Mar 6, 2023 | 4.72% (0.04720) | 89.23th | v2 (v2022.01.01) |
| Apr 1, 2022 | 4.72% (0.04720) | 88.14th | v2 (v2022.01.01) |
| Feb 4, 2022 | 4.72% (0.04720) | 74.52th | v2 (v2022.01.01) |
| Feb 3, 2022 | 6.94% (0.06943) | 83.33th | v1 |
| Jan 6, 2022 | 6.94% (0.06943) | 83.17th | v1 |
| Sep 1, 2021 | 6.94% (0.06943) | 91.11th | v1 |
| Jul 21, 2021 | 6.94% (0.06943) | 0.00th | v1 |
| Apr 14, 2021 | 6.76% (0.06757) | 0.00th | v1 |
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Change history (0)
No recorded changes yet.