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OpenSSL ECDHE silently downgrades to ECDH [Client] (CVE-2014-3572)

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OpenSSL ECDHE silently downgrades to ECDH [Client] (CVE-2014-3572)

Severity
5
CVSS
(AV:N/AC:L/Au:N/C:N/I:P/A:N)
Published
01/09/2015
Created
07/25/2018
Added
01/09/2015
Modified
12/08/2015

Description

The ssl3_get_key_exchange function in s3_clnt.c in OpenSSL before 0.9.8zd, 1.0.0 before 1.0.0p, and 1.0.1 before 1.0.1k allows remote SSL servers to conduct ECDHE-to-ECDH downgrade attacks and trigger a loss of forward secrecy by omitting the ServerKeyExchange message.

Solution(s)

  • http-openssl-0_9_8-upgrade-0_9_8_z_d
  • http-openssl-1_0_0-upgrade-1_0_0_p
  • http-openssl-1_0_1-upgrade-1_0_1_k

References

  • http-openssl-0_9_8-upgrade-0_9_8_z_d
  • http-openssl-1_0_0-upgrade-1_0_0_p
  • http-openssl-1_0_1-upgrade-1_0_1_k

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