MEDIUM
openssl: TLS protocol downgrade attack
Published Aug 13, 2014
4.3
MEDIUMCVSS 2.0
EPSS 14.13%
Description
The ssl23_get_client_hello function in s23_srvr.c in OpenSSL 1.0.1 before 1.0.1i allows man-in-the-middle attackers to force the use of TLS 1.0 by triggering ClientHello message fragmentation in communication between a client and server that both support later TLS versions, related to a "protocol downgrade" issue.
Affected products
No data.
OR
- 1.0.0
- 1.0.0
- 1.0.0
- 1.0.0
- 1.0.0
- 1.0.0
- 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
- 1.0.1
- 1.0.1
- 1.0.1
- 1.0.1
- 1.0.1a
- 1.0.1b
- 1.0.1c
- 1.0.1d
- 1.0.1e
- 1.0.1f
- 1.0.1g
- 1.0.1h
No data.
RHEV 3.X Hypervisor and Agents for RHEL-6
rhev-hypervisor6-0:6.6-20150123.1.el6ev
Fixed · RHSA-2015:0126
RHEV Manager version 3.5
spice-client-msi-0:3.5-2
Fixed · RHSA-2015:0197
Red Hat Enterprise Linux 6
openssl-0:1.0.1e-16.el6_5.15
Fixed · RHSA-2014:1052
Red Hat Enterprise Linux 7
openssl-1:1.0.1e-34.el7_0.4
Fixed · RHSA-2014:1052
Red Hat Storage 2.1
openssl-0:1.0.1e-16.el6_5.15
Fixed · RHSA-2014:1054
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 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
| Product | Package | State | Advisory |
|---|---|---|---|
| RHEV 3.X Hypervisor and Agents for RHEL-6 | rhev-hypervisor6-0:6.6-20150123.1.el6ev | Fixed | RHSA-2015:0126 |
| RHEV Manager version 3.5 | spice-client-msi-0:3.5-2 | Fixed | RHSA-2015:0197 |
| Red Hat Enterprise Linux 6 | openssl-0:1.0.1e-16.el6_5.15 | Fixed | RHSA-2014:1052 |
| Red Hat Enterprise Linux 7 | openssl-1:1.0.1e-34.el7_0.4 | Fixed | RHSA-2014:1052 |
| Red Hat Storage 2.1 | openssl-0:1.0.1e-16.el6_5.15 | Fixed | RHSA-2014:1054 |
| 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 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 |
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.
No CVSS v3.0 score for this CVE.
4.3 MEDIUM NVD
AV:N/AC:M/Au:N/C:N/I:P/A:N
Access Vector Network
Access Complexity Medium
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.
14.13% 0.14129
Estimated probability of exploitation in the wild in the next 30 days (FIRST EPSS). As of Oct 1, 2026.
EPSS probability 0.14129
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 (43 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 1, 2026 | 14.13% (0.14129) | 96.47th | v5 (v2026.06.15) |
| Jun 15, 2026 | 13.33% (0.13327) | 95.90th | v5 (v2026.06.15) |
| Mar 4, 2026 | 5.42% (0.05418) | 89.96th | v4 (v2025.03.14) |
| Mar 1, 2026 | 4.15% (0.04154) | 88.51th | v4 (v2025.03.14) |
| Feb 4, 2026 | 5.42% (0.05418) | 89.90th | v4 (v2025.03.14) |
| Feb 1, 2026 | 4.15% (0.04154) | 88.44th | v4 (v2025.03.14) |
| Jan 4, 2026 | 5.42% (0.05418) | 89.85th | v4 (v2025.03.14) |
| Jan 1, 2026 | 4.15% (0.04154) | 88.39th | v4 (v2025.03.14) |
| Dec 21, 2025 | 5.42% (0.05418) | 89.82th | v4 (v2025.03.14) |
| Dec 4, 2025 | 7.70% (0.07700) | 91.57th | v4 (v2025.03.14) |
| Dec 1, 2025 | 5.86% (0.05857) | 90.25th | v4 (v2025.03.14) |
| Nov 4, 2025 | 7.70% (0.07700) | 91.51th | v4 (v2025.03.14) |
| Nov 1, 2025 | 5.86% (0.05857) | 90.19th | v4 (v2025.03.14) |
| Oct 4, 2025 | 7.70% (0.07700) | 91.56th | v4 (v2025.03.14) |
| Oct 1, 2025 | 5.86% (0.05857) | 90.23th | v4 (v2025.03.14) |
| Sep 4, 2025 | 6.95% (0.06952) | 91.08th | v4 (v2025.03.14) |
| Sep 1, 2025 | 4.76% (0.04765) | 89.10th | v4 (v2025.03.14) |
| Aug 4, 2025 | 6.95% (0.06952) | 91.04th | v4 (v2025.03.14) |
| Aug 1, 2025 | 4.76% (0.04765) | 89.12th | v4 (v2025.03.14) |
| Jul 4, 2025 | 7.70% (0.07700) | 91.47th | v4 (v2025.03.14) |
| Jul 1, 2025 | 5.86% (0.05857) | 90.17th | v4 (v2025.03.14) |
| Jun 5, 2025 | 7.70% (0.07700) | 91.43th | v4 (v2025.03.14) |
| Jun 1, 2025 | 5.86% (0.05857) | 90.12th | v4 (v2025.03.14) |
| May 4, 2025 | 7.70% (0.07700) | 91.41th | v4 (v2025.03.14) |
| May 1, 2025 | 5.86% (0.05857) | 90.08th | v4 (v2025.03.14) |
| Apr 15, 2025 | 7.70% (0.07700) | 91.40th | v4 (v2025.03.14) |
| Apr 14, 2025 | 5.86% (0.05857) | 89.68th | v4 (v2025.03.14) |
| Apr 5, 2025 | 7.70% (0.07700) | 91.14th | v4 (v2025.03.14) |
| Apr 4, 2025 | 5.86% (0.05857) | 89.66th | v4 (v2025.03.14) |
| Apr 3, 2025 | 7.70% (0.07700) | 91.12th | v4 (v2025.03.14) |
| Apr 2, 2025 | 5.86% (0.05857) | 89.65th | v4 (v2025.03.14) |
| Mar 30, 2025 | 7.18% (0.07179) | 90.72th | v4 (v2025.03.14) |
| Mar 29, 2025 | 19.41% (0.19405) | 92.45th | v4 (v2025.03.14) |
| Mar 17, 2025 | 7.18% (0.07179) | 90.93th | v4 (v2025.03.14) |
| Dec 12, 2024 | 0.71% (0.00713) | 81.15th | v3 (v2023.03.01) |
| Mar 25, 2024 | 0.71% (0.00713) | 80.07th | v3 (v2023.03.01) |
| Mar 20, 2024 | 0.69% (0.00692) | 79.72th | v3 (v2023.03.01) |
| Sep 7, 2023 | 0.69% (0.00692) | 77.71th | v3 (v2023.03.01) |
| Apr 20, 2023 | 0.62% (0.00619) | 75.72th | v3 (v2023.03.01) |
| Mar 7, 2023 | 0.72% (0.00718) | 77.53th | 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) |
Weaknesses (1)
References (65)
- ftp://ftp.netbsd.org/pub/NetBSD/security/advisories/NetBSD-SA2014-008.txt.asc vendor-advisoryx_refsource_NETBSD
- http://aix.software.ibm.com/aix/efixes/security/openssl_advisory10.asc x_refsource_CONFIRM
- http://linux.oracle.com/errata/ELSA-2014-1052.html x_refsource_CONFIRM
- http://lists.fedoraproject.org/pipermail/package-announce/2014-August/136470.html vendor-advisoryx_refsource_FEDORA
- http://lists.fedoraproject.org/pipermail/package-announce/2014-August/136473.html vendor-advisoryx_refsource_FEDORA
- http://lists.opensuse.org/opensuse-updates/2014-08/msg00036.html vendor-advisoryx_refsource_SUSE
- http://marc.info/?l=bugtraq&m=142350350616251&w=2 vendor-advisoryx_refsource_HP
- http://marc.info/?l=bugtraq&m=142495837901899&w=2 vendor-advisoryx_refsource_HP
- http://marc.info/?l=bugtraq&m=142624590206005&w=2 vendor-advisoryx_refsource_HP
- http://marc.info/?l=bugtraq&m=142660345230545&w=2 vendor-advisoryx_refsource_HP
- http://marc.info/?l=bugtraq&m=142791032306609&w=2 vendor-advisoryx_refsource_HP
- http://marc.info/?l=bugtraq&m=143290437727362&w=2 vendor-advisoryx_refsource_HP
- http://marc.info/?l=bugtraq&m=143290522027658&w=2 vendor-advisoryx_refsource_HP
- http://rhn.redhat.com/errata/RHSA-2015-0126.html vendor-advisoryx_refsource_REDHAT
- http://rhn.redhat.com/errata/RHSA-2015-0197.html vendor-advisoryx_refsource_REDHAT
- http://secunia.com/advisories/58962 third-party-advisoryx_refsource_SECUNIA
- http://secunia.com/advisories/59700 third-party-advisoryx_refsource_SECUNIA
- http://secunia.com/advisories/59710 third-party-advisoryx_refsource_SECUNIA
- http://secunia.com/advisories/59756 third-party-advisoryx_refsource_SECUNIA
- http://secunia.com/advisories/59887 third-party-advisoryx_refsource_SECUNIA
- http://secunia.com/advisories/60022 third-party-advisoryx_refsource_SECUNIA
- http://secunia.com/advisories/60221 third-party-advisoryx_refsource_SECUNIA
- http://secunia.com/advisories/60377 third-party-advisoryx_refsource_SECUNIA
- http://secunia.com/advisories/60493 third-party-advisoryx_refsource_SECUNIA
- http://secunia.com/advisories/60684 third-party-advisoryx_refsource_SECUNIA
- http://secunia.com/advisories/60803 third-party-advisoryx_refsource_SECUNIA
- http://secunia.com/advisories/60810 third-party-advisoryx_refsource_SECUNIA
- http://secunia.com/advisories/60890 third-party-advisoryx_refsource_SECUNIA
- http://secunia.com/advisories/60917 third-party-advisoryx_refsource_SECUNIA
- http://secunia.com/advisories/60921 third-party-advisoryx_refsource_SECUNIA
- http://secunia.com/advisories/60938 third-party-advisoryx_refsource_SECUNIA
- http://secunia.com/advisories/61017 third-party-advisoryx_refsource_SECUNIA
- http://secunia.com/advisories/61043 third-party-advisoryx_refsource_SECUNIA
- http://secunia.com/advisories/61100 third-party-advisoryx_refsource_SECUNIA
- http://secunia.com/advisories/61139 third-party-advisoryx_refsource_SECUNIA
- http://secunia.com/advisories/61184 third-party-advisoryx_refsource_SECUNIA
- http://secunia.com/advisories/61775 third-party-advisoryx_refsource_SECUNIA
- http://secunia.com/advisories/61959 third-party-advisoryx_refsource_SECUNIA
- http://security.gentoo.org/glsa/glsa-201412-39.xml vendor-advisoryx_refsource_GENTOO
- http://support.f5.com/kb/en-us/solutions/public/15000/500/sol15564.html x_refsource_CONFIRM
- http://www-01.ibm.com/support/docview.wss?uid=nas8N1020240 x_refsource_CONFIRM
- http://www-01.ibm.com/support/docview.wss?uid=swg21682293 x_refsource_CONFIRM
- http://www-01.ibm.com/support/docview.wss?uid=swg21683389 x_refsource_CONFIRM
- http://www-01.ibm.com/support/docview.wss?uid=swg21686997 x_refsource_CONFIRM
- http://www.arubanetworks.com/support/alerts/aid-08182014.txt x_refsource_CONFIRM
- http://www.debian.org/security/2014/dsa-2998 vendor-advisoryx_refsource_DEBIAN
- http://www.huawei.com/en/security/psirt/security-bulletins/security-advisories/hw-372998.htm x_refsource_CONFIRM
- http://www.securityfocus.com/bid/69079 vdb-entryx_refsource_BID
- http://www.securitytracker.com/id/1030693 vdb-entryx_refsource_SECTRACK
- http://www.splunk.com/view/SP-CAAANHS x_refsource_CONFIRM
- http://www.tenable.com/security/tns-2014-06 x_refsource_CONFIRM
- https://access.redhat.com/security/cve/CVE-2014-3511 Vendor Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=1127504 x_refsource_CONFIRMIssue Tracking
- https://exchange.xforce.ibmcloud.com/vulnerabilities/95162 vdb-entryx_refsource_XF
- https://git.openssl.org/gitweb/?p=openssl.git%3Ba=commit%3Bh=280b1f1ad12131defcd986676a8fc9717aaa601b 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=SB10084 x_refsource_CONFIRM
- https://lists.balabit.hu/pipermail/syslog-ng-announce/2014-September/000196.html mailing-listx_refsource_MLIST
- https://nvd.nist.gov/vuln/detail/CVE-2014-3511
- https://support.citrix.com/article/CTX216642 x_refsource_CONFIRM
- https://techzone.ergon.ch/CVE-2014-3511 x_refsource_CONFIRM
- https://www.cve.org/CVERecord?id=CVE-2014-3511
- https://www.freebsd.org/security/advisories/FreeBSD-SA-14:18.openssl.asc vendor-advisoryx_refsource_FREEBSD
- https://www.openssl.org/news/secadv_20140806.txt x_refsource_CONFIRMVendor Advisory
Change history (0)
No recorded changes yet.
Sources
CVE.org / MITRE
Status PUBLISHED
Assigner redhat
Published Aug 13, 2014
Updated Aug 6, 2024
Reserved May 14, 2014
Link CVE-2014-3511
CISA Vulnrichment
Updated n/a