openssl: segmentation fault in client authentication with empty CKE and DHE
Published Mar 19, 2015
2.6
LOWCVSS 2.0
EPSS 6.53%
Description
The ssl3_get_client_key_exchange function in s3_srvr.c in OpenSSL 1.0.2 before 1.0.2a, when client authentication and an ephemeral Diffie-Hellman ciphersuite are enabled, allows remote attackers to cause a denial of service (daemon crash) via a ClientKeyExchange message with a length of zero.
Affected products
No data.
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
openssl
Not affected
Red Hat Enterprise Linux 7
openssl098e
Not affected
Red Hat Enterprise Virtualization 3
mingw-virt-viewer
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 Storage 2
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 | 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 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 Storage 2 | openssl | Not affected | n/a |
No package ranges for this CVE.
Remediation
Red Hat statement
This issue did not affect the versions of openssl as shipped with Red Hat Enterprise Linux 5, 6, and 7.
Metrics
No CVSS v4.0 score for this CVE.
No CVSS v3.1 score for this CVE.
No CVSS v3.0 score for this CVE.
AV:N/AC:H/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
2022–2026- EPSS v2
- EPSS v3
- EPSS v4
- EPSS v5
Percentile over time
- EPSS v2
- EPSS v3
- EPSS v4
- EPSS v5
Table of values (23 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 1, 2026 | 6.53% (0.06534) | 93.59th | v5 (v2026.06.15) |
| Jun 15, 2026 | 7.40% (0.07404) | 93.62th | v5 (v2026.06.15) |
| May 21, 2026 | 26.92% (0.26918) | 96.43th | v4 (v2025.03.14) |
| Mar 3, 2026 | 25.83% (0.25826) | 96.18th | v4 (v2025.03.14) |
| Dec 28, 2025 | 14.94% (0.14935) | 94.33th | v4 (v2025.03.14) |
| Dec 27, 2025 | 9.09% (0.09094) | 92.42th | v4 (v2025.03.14) |
| Dec 14, 2025 | 14.94% (0.14935) | 94.30th | v4 (v2025.03.14) |
| Nov 10, 2025 | 13.60% (0.13600) | 93.94th | v4 (v2025.03.14) |
| Oct 28, 2025 | 16.75% (0.16748) | 94.65th | v4 (v2025.03.14) |
| Oct 27, 2025 | 10.31% (0.10307) | 92.85th | v4 (v2025.03.14) |
| Oct 1, 2025 | 16.75% (0.16748) | 94.73th | v4 (v2025.03.14) |
| Jul 30, 2025 | 10.31% (0.10307) | 92.86th | v4 (v2025.03.14) |
| Mar 30, 2025 | 16.75% (0.16748) | 94.38th | v4 (v2025.03.14) |
| Mar 29, 2025 | 15.42% (0.15416) | 91.11th | v4 (v2025.03.14) |
| Mar 17, 2025 | 16.75% (0.16748) | 94.42th | v4 (v2025.03.14) |
| Dec 17, 2024 | 18.07% (0.18073) | 96.16th | v3 (v2023.03.01) |
| Oct 29, 2024 | 22.58% (0.22577) | 96.63th | v3 (v2023.03.01) |
| Nov 8, 2023 | 20.80% (0.20803) | 95.87th | v3 (v2023.03.01) |
| Sep 1, 2023 | 17.24% (0.17238) | 95.42th | v3 (v2023.03.01) |
| Mar 7, 2023 | 21.50% (0.21505) | 95.64th | v3 (v2023.03.01) |
| Mar 6, 2023 | 6.58% (0.06584) | 91.39th | v2 (v2022.01.01) |
| Apr 1, 2022 | 6.58% (0.06584) | 90.55th | v2 (v2022.01.01) |
| Feb 4, 2022 | 6.58% (0.06584) | 78.46th | v2 (v2022.01.01) |
References (22)
- http://marc.info/?l=bugtraq&m=143748090628601&w=2 vendor-advisoryMailing ListThird Party Advisory
- http://marc.info/?l=bugtraq&m=144050155601375&w=2 vendor-advisoryMailing ListThird Party Advisory
- http://marc.info/?l=bugtraq&m=144050297101809&w=2 vendor-advisoryMailing ListThird Party Advisory
- http://www.oracle.com/technetwork/security-advisory/cpuoct2017-3236626.html PatchThird Party Advisory
- http://www.oracle.com/technetwork/topics/security/bulletinapr2015-2511959.html Third Party Advisory
- http://www.oracle.com/technetwork/topics/security/cpujan2016-2367955.html Third Party Advisory
- http://www.oracle.com/technetwork/topics/security/cpujul2015-2367936.html Third Party Advisory
- http://www.oracle.com/technetwork/topics/security/cpuoct2015-2367953.html Third Party Advisory
- http://www.securityfocus.com/bid/73238 vdb-entryThird Party AdvisoryVDB Entry
- http://www.securitytracker.com/id/1031929 vdb-entryThird Party AdvisoryVDB Entry
- https://access.redhat.com/articles/1384453
- https://access.redhat.com/security/cve/CVE-2015-1787 Vendor Advisory
- https://bto.bluecoat.com/security-advisory/sa92 Third Party Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=1202406 Issue TrackingThird Party Advisory
- https://cert-portal.siemens.com/productcert/pdf/ssa-412672.pdf
- https://git.openssl.org/?p=openssl.git%3Ba=commit%3Bh=b19d8143212ae5fbc9cebfd51c01f802fabccd33
- https://kc.mcafee.com/corporate/index?page=content&id=SB10110 Third Party Advisory
- https://nvd.nist.gov/vuln/detail/CVE-2015-1787
- https://openssl.org/news/secadv_20150319.txt
- https://security.gentoo.org/glsa/201503-11 vendor-advisoryThird Party Advisory
- https://www.cve.org/CVERecord?id=CVE-2015-1787
- https://www.openssl.org/news/secadv_20150319.txt Vendor Advisory
Change history (0)
No recorded changes yet.