MEDIUM
openssl: DH client certificates accepted without verification
Published Jan 9, 2015
5.0
MEDIUMCVSS 2.0
EPSS 22.34%
Description
The ssl3_get_cert_verify function in s3_srvr.c in OpenSSL 1.0.0 before 1.0.0p and 1.0.1 before 1.0.1k accepts client authentication with a Diffie-Hellman (DH) certificate without requiring a CertificateVerify message, which allows remote attackers to obtain access without knowledge of a private key via crafted TLS Handshake Protocol traffic to a server that recognizes a Certification Authority with DH support.
Affected products
No data.
OR
- 1.0.0a
- 1.0.0b
- 1.0.0c
- 1.0.0d
- 1.0.0e
- 1.0.0f
- 1.0.0g
- 1.0.0h
- 1.0.0i
- 1.0.0j
- 1.0.0k
- 1.0.0l
- 1.0.0m
- 1.0.0n
- 1.0.0o
- 1.0.1a
- 1.0.1b
- 1.0.1c
- 1.0.1d
- 1.0.1e
- 1.0.1f
- 1.0.1g
- 1.0.1h
- 1.0.1i
- 1.0.1j
No data.
Red Hat Enterprise Linux 6
openssl-0:1.0.1e-30.el6_6.5
Fixed · RHSA-2015:0066
Red Hat Enterprise Linux 7
openssl-1:1.0.1e-34.el7_0.7
Fixed · RHSA-2015:0066
Red Hat Enterprise Linux 5
openssl
Not affected
Red Hat Enterprise Linux 5
openssl097a
Not affected
Red Hat Enterprise Linux 6
openssl098e
Not affected
Red Hat Enterprise Linux 7
openssl098e
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
Affected
| Product | Package | State | Advisory |
|---|---|---|---|
| Red Hat Enterprise Linux 6 | openssl-0:1.0.1e-30.el6_6.5 | Fixed | RHSA-2015:0066 |
| Red Hat Enterprise Linux 7 | openssl-1:1.0.1e-34.el7_0.7 | Fixed | RHSA-2015:0066 |
| 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 | openssl098e | Not affected | n/a |
| Red Hat Enterprise Linux 7 | openssl098e | 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 | Affected | n/a |
No package ranges for this CVE.
Remediation
Red Hat statement
This issue does not affect the version of openssl and openssl097a as shipped with Red Hat Enterprise Linux 5. This issue does not affect the version of openssl098e as shipped with Red Hat Enterprise Linux 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.
5.0 MEDIUM NVD
AV:N/AC:L/Au:N/C:N/I:P/A:N
Access Vector Network
Access Complexity Low
Authentication None
Confidentiality Impact None
Integrity Impact Partial
Availability Impact None
This CVE is not in the KEV list.
No CISA SSVC assessment for this CVE yet.
22.34% 0.22341
Estimated probability of exploitation in the wild in the next 30 days (FIRST EPSS). As of Oct 1, 2026.
EPSS probability 0.22341
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 (54 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 1, 2026 | 22.34% (0.22341) | 97.62th | v5 (v2026.06.15) |
| Aug 21, 2026 | 22.34% (0.22341) | 97.50th | v5 (v2026.06.15) |
| Jun 15, 2026 | 24.63% (0.24626) | 97.60th | v5 (v2026.06.15) |
| Mar 30, 2026 | 12.25% (0.12252) | 93.81th | v4 (v2025.03.14) |
| Mar 4, 2026 | 14.56% (0.14562) | 94.32th | v4 (v2025.03.14) |
| Mar 1, 2026 | 8.36% (0.08363) | 92.18th | v4 (v2025.03.14) |
| Feb 19, 2026 | 14.56% (0.14562) | 94.31th | v4 (v2025.03.14) |
| Feb 4, 2026 | 8.28% (0.08275) | 92.02th | v4 (v2025.03.14) |
| Feb 1, 2026 | 5.41% (0.05409) | 89.94th | v4 (v2025.03.14) |
| Jan 4, 2026 | 8.28% (0.08275) | 91.96th | v4 (v2025.03.14) |
| Jan 1, 2026 | 5.41% (0.05409) | 89.91th | v4 (v2025.03.14) |
| Dec 28, 2025 | 8.28% (0.08275) | 91.94th | v4 (v2025.03.14) |
| Dec 27, 2025 | 6.67% (0.06669) | 90.95th | v4 (v2025.03.14) |
| Dec 21, 2025 | 8.28% (0.08275) | 91.94th | v4 (v2025.03.14) |
| Dec 11, 2025 | 18.03% (0.18031) | 94.92th | v4 (v2025.03.14) |
| Dec 7, 2025 | 12.14% (0.12136) | 93.54th | v4 (v2025.03.14) |
| Dec 4, 2025 | 19.07% (0.19075) | 95.09th | v4 (v2025.03.14) |
| Dec 1, 2025 | 14.70% (0.14701) | 94.26th | v4 (v2025.03.14) |
| Nov 4, 2025 | 19.07% (0.19075) | 95.07th | v4 (v2025.03.14) |
| Nov 1, 2025 | 14.70% (0.14701) | 94.24th | v4 (v2025.03.14) |
| Oct 28, 2025 | 19.07% (0.19075) | 95.06th | v4 (v2025.03.14) |
| Oct 27, 2025 | 13.88% (0.13876) | 94.04th | v4 (v2025.03.14) |
| Oct 4, 2025 | 19.07% (0.19075) | 95.10th | v4 (v2025.03.14) |
| Sep 4, 2025 | 13.88% (0.13876) | 94.07th | v4 (v2025.03.14) |
| Sep 1, 2025 | 8.72% (0.08716) | 92.19th | v4 (v2025.03.14) |
| Aug 4, 2025 | 13.88% (0.13876) | 94.02th | v4 (v2025.03.14) |
| Aug 1, 2025 | 8.72% (0.08716) | 92.17th | v4 (v2025.03.14) |
| Jul 30, 2025 | 13.88% (0.13876) | 94.02th | v4 (v2025.03.14) |
| Jul 4, 2025 | 19.07% (0.19075) | 95.05th | v4 (v2025.03.14) |
| Jul 1, 2025 | 14.70% (0.14701) | 94.19th | v4 (v2025.03.14) |
| Jun 4, 2025 | 19.07% (0.19075) | 95.00th | v4 (v2025.03.14) |
| Jun 1, 2025 | 14.70% (0.14701) | 94.16th | v4 (v2025.03.14) |
| May 4, 2025 | 19.07% (0.19075) | 94.97th | v4 (v2025.03.14) |
| May 1, 2025 | 14.70% (0.14701) | 94.13th | v4 (v2025.03.14) |
| Apr 12, 2025 | 19.07% (0.19075) | 94.86th | v4 (v2025.03.14) |
| Mar 31, 2025 | 13.92% (0.13922) | 93.71th | v4 (v2025.03.14) |
| Mar 30, 2025 | 11.11% (0.11109) | 92.84th | v4 (v2025.03.14) |
| Mar 29, 2025 | 21.75% (0.21752) | 93.07th | v4 (v2025.03.14) |
| Mar 28, 2025 | 11.11% (0.11109) | 92.84th | v4 (v2025.03.14) |
| Mar 27, 2025 | 21.75% (0.21752) | 94.94th | v4 (v2025.03.14) |
| Mar 20, 2025 | 10.63% (0.10628) | 92.70th | v4 (v2025.03.14) |
| Mar 19, 2025 | 20.94% (0.20943) | 94.93th | v4 (v2025.03.14) |
| Mar 17, 2025 | 10.63% (0.10628) | 92.74th | v4 (v2025.03.14) |
| Dec 12, 2024 | 2.44% (0.02436) | 90.38th | v3 (v2023.03.01) |
| Aug 12, 2024 | 2.37% (0.02366) | 89.99th | v3 (v2023.03.01) |
| Aug 11, 2024 | 0.50% (0.00498) | 76.55th | v3 (v2023.03.01) |
| Apr 10, 2024 | 2.37% (0.02366) | 89.63th | v3 (v2023.03.01) |
| Mar 25, 2024 | 0.50% (0.00498) | 75.79th | v3 (v2023.03.01) |
| Oct 29, 2023 | 0.61% (0.00613) | 76.35th | v3 (v2023.03.01) |
| Sep 15, 2023 | 0.87% (0.00868) | 80.39th | v3 (v2023.03.01) |
| Mar 7, 2023 | 1.01% (0.01006) | 81.36th | v3 (v2023.03.01) |
| Mar 6, 2023 | 7.56% (0.07559) | 92.87th | v2 (v2022.01.01) |
| Apr 1, 2022 | 7.56% (0.07559) | 92.17th | v2 (v2022.01.01) |
| Feb 4, 2022 | 7.56% (0.07559) | 81.11th | v2 (v2022.01.01) |
Weaknesses (1)
References (40)
- http://kb.juniper.net/InfoCenter/index?page=content&id=JSA10679 x_refsource_CONFIRM
- http://lists.fedoraproject.org/pipermail/package-announce/2015-January/147938.html vendor-advisoryx_refsource_FEDORA
- http://lists.fedoraproject.org/pipermail/package-announce/2015-January/148363.html vendor-advisoryx_refsource_FEDORA
- http://lists.opensuse.org/opensuse-security-announce/2015-01/msg00021.html vendor-advisoryx_refsource_SUSE
- http://lists.opensuse.org/opensuse-security-announce/2015-03/msg00027.html vendor-advisoryx_refsource_SUSE
- http://lists.opensuse.org/opensuse-security-announce/2015-05/msg00026.html vendor-advisoryx_refsource_SUSE
- http://lists.opensuse.org/opensuse-security-announce/2015-07/msg00037.html vendor-advisoryx_refsource_SUSE
- http://marc.info/?l=bugtraq&m=142721102728110&w=2 vendor-advisoryx_refsource_HP
- http://marc.info/?l=bugtraq&m=143748090628601&w=2 vendor-advisoryx_refsource_HP
- http://marc.info/?l=bugtraq&m=144050155601375&w=2 vendor-advisoryx_refsource_HP
- http://marc.info/?l=bugtraq&m=144050205101530&w=2 vendor-advisoryx_refsource_HP
- http://marc.info/?l=bugtraq&m=144050254401665&w=2 vendor-advisoryx_refsource_HP
- http://marc.info/?l=bugtraq&m=144050297101809&w=2 vendor-advisoryx_refsource_HP
- http://rhn.redhat.com/errata/RHSA-2015-0066.html vendor-advisoryx_refsource_REDHAT
- http://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20150310-ssl vendor-advisoryx_refsource_CISCO
- http://www.debian.org/security/2015/dsa-3125 vendor-advisoryx_refsource_DEBIAN
- http://www.mandriva.com/security/advisories?name=MDVSA-2015:019 vendor-advisoryx_refsource_MANDRIVA
- http://www.mandriva.com/security/advisories?name=MDVSA-2015:062 vendor-advisoryx_refsource_MANDRIVA
- http://www.oracle.com/technetwork/security-advisory/cpujul2016-2881720.html x_refsource_CONFIRM
- http://www.oracle.com/technetwork/security-advisory/cpuoct2017-3236626.html x_refsource_CONFIRM
- http://www.oracle.com/technetwork/topics/security/bulletinjan2015-2370101.html x_refsource_CONFIRM
- http://www.oracle.com/technetwork/topics/security/cpuapr2015-2365600.html x_refsource_CONFIRM
- http://www.oracle.com/technetwork/topics/security/cpujul2015-2367936.html x_refsource_CONFIRM
- http://www.oracle.com/technetwork/topics/security/cpuoct2015-2367953.html x_refsource_CONFIRM
- http://www.securityfocus.com/bid/71941 vdb-entryx_refsource_BID
- http://www.securityfocus.com/bid/91787 vdb-entryx_refsource_BID
- http://www.securitytracker.com/id/1033378 vdb-entryx_refsource_SECTRACK
- https://access.redhat.com/security/cve/CVE-2015-0205 Vendor Advisory
- https://bto.bluecoat.com/security-advisory/sa88 x_refsource_CONFIRM
- https://bugzilla.redhat.com/show_bug.cgi?id=1180239 Issue Tracking
- https://exchange.xforce.ibmcloud.com/vulnerabilities/99708 vdb-entryx_refsource_XF
- https://github.com/openssl/openssl/commit/1421e0c584ae9120ca1b88098f13d6d2e90b83a3 x_refsource_CONFIRM
- https://h20566.www2.hpe.com/portal/site/hpsc/public/kb/docDisplay?docId=emr_na-c05150888 x_refsource_CONFIRM
- https://h20566.www2.hpe.com/portal/site/hpsc/public/kb/docDisplay?docId=emr_na-c05158380 x_refsource_CONFIRM
- https://kc.mcafee.com/corporate/index?page=content&id=SB10102 x_refsource_CONFIRM
- https://kc.mcafee.com/corporate/index?page=content&id=SB10108 x_refsource_CONFIRM
- https://nvd.nist.gov/vuln/detail/CVE-2015-0205
- https://support.citrix.com/article/CTX216642 x_refsource_CONFIRM
- https://www.cve.org/CVERecord?id=CVE-2015-0205
- https://www.openssl.org/news/secadv_20150108.txt x_refsource_CONFIRMVendor Advisory
Change history (0)
No recorded changes yet.
Sources
CVE.org / MITRE
Status PUBLISHED
Assigner redhat
Published Jan 9, 2015
Updated Aug 6, 2024
Reserved Nov 18, 2014
Link CVE-2015-0205
CISA Vulnrichment
Updated n/a