Encrypt-Then-Mac renegotiation crash
Published May 4, 2017
7.5
HIGHCVSS 3.0
EPSS 12.87%
Description
During a renegotiation handshake if the Encrypt-Then-Mac extension is negotiated where it was not in the original handshake (or vice-versa) then this can cause OpenSSL 1.1.0 before 1.1.0e to crash (dependent on ciphersuite). Both clients and servers are affected.
Affected products
-
- Version openssl-1.1.0StatusaffectedConstraints-
- Version openssl-1.1.0aStatusaffectedConstraints-
- Version openssl-1.1.0bStatusaffectedConstraints-
- Version openssl-1.1.0cStatusaffectedConstraints-
- Version openssl-1.1.0dStatusaffectedConstraints-
- Version
Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).
No data.
Red Hat Enterprise Linux 5
openssl
Not affected
Red Hat Enterprise Linux 5
openssl097a
Not affected
Red Hat Enterprise Linux 6
openssl
Not affected
Red Hat Enterprise Linux 6
openssl098e
Not affected
Red Hat Enterprise Linux 7
OVMF
Not affected
Red Hat Enterprise Linux 7
openssl
Not affected
Red Hat Enterprise Linux 7
openssl098e
Not affected
Red Hat Enterprise Virtualization 3
mingw-virt-viewer
Not affected
Red Hat JBoss Core Services
openssl
Not affected
Red Hat JBoss Enterprise Application Platform 5
openssl
Not affected
Red Hat JBoss Enterprise Application Platform 6
openssl
Not affected
Red Hat JBoss Enterprise Web Server 1
openssl
Not affected
Red Hat JBoss Enterprise Web Server 2
openssl
Not affected
Red Hat JBoss Web Server 3
openssl
Not affected
| Product | Package | State | Advisory |
|---|---|---|---|
| Red Hat Enterprise Linux 5 | openssl | Not affected | n/a |
| Red Hat Enterprise Linux 5 | openssl097a | Not affected | n/a |
| Red Hat Enterprise Linux 6 | openssl | Not affected | n/a |
| Red Hat Enterprise Linux 6 | openssl098e | Not affected | n/a |
| Red Hat Enterprise Linux 7 | OVMF | Not affected | n/a |
| Red Hat Enterprise Linux 7 | openssl | Not affected | n/a |
| Red Hat Enterprise Linux 7 | openssl098e | Not affected | n/a |
| Red Hat Enterprise Virtualization 3 | mingw-virt-viewer | Not affected | n/a |
| Red Hat JBoss Core Services | openssl | Not affected | n/a |
| Red Hat JBoss Enterprise Application Platform 5 | openssl | Not affected | n/a |
| Red Hat JBoss Enterprise Application Platform 6 | openssl | Not affected | n/a |
| Red Hat JBoss Enterprise Web Server 1 | openssl | Not affected | n/a |
| Red Hat JBoss Enterprise Web Server 2 | openssl | Not affected | n/a |
| Red Hat JBoss Web Server 3 | openssl | Not 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:L/PR:N/UI:N/S:U/C:N/I:N/A:H
1 other source (Red Hat) ▾
CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H
AV:N/AC:L/Au:N/C:N/I:N/A:P
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 (38 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 1, 2026 | 12.87% (0.12874) | 96.19th | v5 (v2026.06.15) |
| Sep 22, 2026 | 12.87% (0.12874) | 96.12th | v5 (v2026.06.15) |
| Sep 21, 2026 | 7.29% (0.07287) | 94.17th | v5 (v2026.06.15) |
| Sep 6, 2026 | 12.87% (0.12874) | 96.04th | v5 (v2026.06.15) |
| Sep 5, 2026 | 7.29% (0.07287) | 94.04th | v5 (v2026.06.15) |
| Aug 30, 2026 | 12.87% (0.12874) | 96.02th | v5 (v2026.06.15) |
| Aug 28, 2026 | 7.29% (0.07287) | 94.00th | v5 (v2026.06.15) |
| Aug 24, 2026 | 12.87% (0.12874) | 95.99th | v5 (v2026.06.15) |
| Aug 23, 2026 | 7.29% (0.07287) | 93.97th | v5 (v2026.06.15) |
| Jun 15, 2026 | 12.64% (0.12638) | 95.73th | v5 (v2026.06.15) |
| Mar 22, 2026 | 3.31% (0.03313) | 87.14th | v4 (v2025.03.14) |
| Jan 5, 2026 | 5.89% (0.05892) | 90.29th | v4 (v2025.03.14) |
| Dec 28, 2025 | 7.79% (0.07791) | 91.66th | v4 (v2025.03.14) |
| Dec 27, 2025 | 5.78% (0.05783) | 90.24th | v4 (v2025.03.14) |
| Oct 28, 2025 | 7.79% (0.07791) | 91.56th | v4 (v2025.03.14) |
| Oct 27, 2025 | 5.78% (0.05783) | 90.10th | v4 (v2025.03.14) |
| Oct 1, 2025 | 7.79% (0.07791) | 91.66th | v4 (v2025.03.14) |
| Jul 30, 2025 | 5.78% (0.05783) | 90.13th | v4 (v2025.03.14) |
| Jul 7, 2025 | 7.84% (0.07844) | 91.54th | v4 (v2025.03.14) |
| May 19, 2025 | 6.30% (0.06301) | 90.42th | v4 (v2025.03.14) |
| Mar 30, 2025 | 3.53% (0.03526) | 86.54th | v4 (v2025.03.14) |
| Mar 29, 2025 | 10.30% (0.10299) | 88.53th | v4 (v2025.03.14) |
| Mar 17, 2025 | 3.53% (0.03526) | 86.86th | v4 (v2025.03.14) |
| Dec 12, 2024 | 2.60% (0.02601) | 90.67th | v3 (v2023.03.01) |
| Oct 14, 2024 | 2.60% (0.02601) | 90.51th | v3 (v2023.03.01) |
| Sep 17, 2024 | 3.64% (0.03641) | 91.86th | v3 (v2023.03.01) |
| Jul 29, 2024 | 2.60% (0.02601) | 90.42th | v3 (v2023.03.01) |
| Aug 8, 2023 | 3.64% (0.03641) | 90.44th | v3 (v2023.03.01) |
| May 8, 2023 | 5.07% (0.05067) | 91.66th | v3 (v2023.03.01) |
| Mar 7, 2023 | 4.54% (0.04535) | 91.21th | v3 (v2023.03.01) |
| Mar 6, 2023 | 1.18% (0.01183) | 61.76th | v2 (v2022.01.01) |
| Oct 19, 2022 | 1.18% (0.01183) | 60.79th | v2 (v2022.01.01) |
| Apr 1, 2022 | 1.18% (0.01183) | 58.77th | v2 (v2022.01.01) |
| Feb 4, 2022 | 1.18% (0.01183) | 35.15th | v2 (v2022.01.01) |
| Feb 3, 2022 | 8.74% (0.08744) | 85.98th | v1 |
| Jan 6, 2022 | 8.74% (0.08744) | 85.81th | v1 |
| Sep 1, 2021 | 8.74% (0.08744) | 93.15th | v1 |
| Apr 14, 2021 | 8.74% (0.08744) | 0.00th | v1 |
References (12)
- http://www.oracle.com/technetwork/security-advisory/cpujan2018-3236628.html x_refsource_CONFIRM
- http://www.oracle.com/technetwork/security-advisory/cpuoct2017-3236626.html x_refsource_CONFIRM
- http://www.securityfocus.com/bid/96269 vdb-entryx_refsource_BIDThird Party AdvisoryVDB Entry
- http://www.securitytracker.com/id/1037846 vdb-entryx_refsource_SECTRACK
- https://access.redhat.com/security/cve/CVE-2017-3733 Vendor Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=1421695 Issue Tracking
- https://github.com/openssl/openssl/commit/4ad93618d26a3ea23d36ad5498ff4f59eff3a4d2 x_refsource_MISC
- https://h20566.www2.hpe.com/hpsc/doc/public/display?docLocale=en_US&docId=emr_na-hpesbgn03728en_us x_refsource_CONFIRMThird Party AdvisoryVDB Entry
- https://nvd.nist.gov/vuln/detail/CVE-2017-3733
- https://www.cve.org/CVERecord?id=CVE-2017-3733
- https://www.openssl.org/news/secadv/20170216.txt x_refsource_CONFIRMVendor Advisory
- https://www.oracle.com/technetwork/security-advisory/cpuapr2019-5072813.html x_refsource_MISC
Change history (0)
No recorded changes yet.