UpHeron
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Servers and applications

CVE-2014-3511

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.

Severity
Medium 4.3
Published
13 Aug 2014
Last changed
17 Jun 2026
Added to UpHeron
21 Oct 2026
Sources
NVD

Affected software

SoftwareAffected versions
OpenSSLServers and applications · cpe:a:openssl:openssl
  • Version 1.0.1h
  • Version 1.0.1g
  • Version 1.0.1f
  • Version 1.0.1e
All 31 release lines
  • Version 1.0.0-beta1
  • Version 1.0.0-beta2
  • Version 1.0.0-beta3
  • Version 1.0.0-beta4
  • Version 1.0.0-beta5
  • Version 1.0.0
  • Version 1.0.0a
  • Version 1.0.0b
  • Version 1.0.0c
  • Version 1.0.0d
  • Version 1.0.0e
  • Version 1.0.0f
  • Version 1.0.0g
  • Version 1.0.0h
  • Version 1.0.0i
  • Version 1.0.0j
  • Version 1.0.0k
  • Version 1.0.0l
  • Version 1.0.0m
  • Version 1.0.1-beta1
  • Version 1.0.1-beta2
  • Version 1.0.1-beta3
  • Version 1.0.1
  • Version 1.0.1a
  • Version 1.0.1b
  • Version 1.0.1c
  • Version 1.0.1d
  • Version 1.0.1e
  • Version 1.0.1f
  • Version 1.0.1g
  • Version 1.0.1h

References

  • NVD https://nvd.nist.gov/vuln/detail/CVE-2014-3511
  • CVE.org https://www.cve.org/CVERecord?id=CVE-2014-3511