CVE-2014-3511
MEDIUM · CVSS 4.3EPSS 14.1%EU EUVD
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.
Key facts
- CVSS score
- 4.3 (v2.0)
- Severity
- MEDIUM
- CVSS vector
AV:N/AC:M/Au:N/C:N/I:P/A:N- EPSS score
- 14.1% (97th percentile)
- In CISA KEV
- No
- In EU EUVD
- Yes (EUVD-2014-3512)
- Published
- August 13, 2014
- NVD last modified
- June 17, 2026
- Status
- Modified
EU Vulnerability Database (EUVD)
This vulnerability is also tracked by ENISA as EUVD-2014-3512 in the EU Vulnerability Database. Last updated in EUVD on August 6, 2024.
View on the EU Vulnerability DatabaseAffected products
- openssl / openssl
- openssl / openssl
- openssl / openssl
- openssl / openssl
- openssl / openssl
- openssl / openssl
- openssl / openssl
- openssl / openssl
- openssl / openssl
- openssl / openssl
- openssl / openssl
- openssl / openssl
- openssl / openssl
- openssl / openssl
- openssl / openssl
- openssl / openssl
- openssl / openssl
- openssl / openssl
- openssl / openssl
- openssl / openssl
- openssl / openssl
- openssl / openssl
- openssl / openssl
- openssl / openssl
- openssl / openssl
- openssl / openssl
- openssl / openssl
- openssl / openssl
- openssl / openssl
- openssl / openssl
- openssl / openssl
References
- ftp://ftp.netbsd.org/pub/NetBSD/security/advisories/NetBSD-SA2014-008.txt.asc
- http://aix.software.ibm.com/aix/efixes/security/openssl_advisory10.asc
- http://linux.oracle.com/errata/ELSA-2014-1052.html
- http://lists.fedoraproject.org/pipermail/package-announce/2014-August/136470.html
- http://lists.fedoraproject.org/pipermail/package-announce/2014-August/136473.html
- http://lists.opensuse.org/opensuse-updates/2014-08/msg00036.html
- http://marc.info/?l=bugtraq&m=142350350616251&w=2
- http://marc.info/?l=bugtraq&m=142495837901899&w=2
- http://marc.info/?l=bugtraq&m=142624590206005&w=2
- http://marc.info/?l=bugtraq&m=142660345230545&w=2
- http://marc.info/?l=bugtraq&m=142791032306609&w=2
- http://marc.info/?l=bugtraq&m=143290437727362&w=2
- http://marc.info/?l=bugtraq&m=143290522027658&w=2
- http://rhn.redhat.com/errata/RHSA-2015-0126.html
- http://rhn.redhat.com/errata/RHSA-2015-0197.html
- http://secunia.com/advisories/58962
- http://secunia.com/advisories/59700
- http://secunia.com/advisories/59710
- http://secunia.com/advisories/59756
- http://secunia.com/advisories/59887
- http://secunia.com/advisories/60022
- http://secunia.com/advisories/60221
- http://secunia.com/advisories/60377
- http://secunia.com/advisories/60493
- http://secunia.com/advisories/60684
- http://secunia.com/advisories/60803
- http://secunia.com/advisories/60810
- http://secunia.com/advisories/60890
- http://secunia.com/advisories/60917
- http://secunia.com/advisories/60921
- http://secunia.com/advisories/60938
- http://secunia.com/advisories/61017
- http://secunia.com/advisories/61043
- http://secunia.com/advisories/61100
- http://secunia.com/advisories/61139
- http://secunia.com/advisories/61184
- http://secunia.com/advisories/61775
- http://secunia.com/advisories/61959
- http://security.gentoo.org/glsa/glsa-201412-39.xml
- http://support.f5.com/kb/en-us/solutions/public/15000/500/sol15564.html
Last updated September 17, 2026 · Source: NVD, CISA KEV, FIRST.org EPSS
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