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OpenSSL OpenSSL TLS protocol downgrade attack (CVE-2014-3511)

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OpenSSL OpenSSL TLS protocol downgrade attack (CVE-2014-3511)

Severity
4
CVSS
(AV:N/AC:M/Au:N/C:N/I:P/A:N)
Published
08/08/2014
Created
07/25/2018
Added
08/08/2014
Modified
01/09/2017

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.

Solution(s)

  • http-openssl-1_0_1-upgrade-1_0_1_i

References

  • http-openssl-1_0_1-upgrade-1_0_1_i

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