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Applications that use the default NSS cipher list now support connections to servers that require the Elliptic Curve Diffie-Hellman Ephemeral (ECDHE) key exchange.
libcurl calls NSS_SetDomesticPolicy() to enable default cipher-suites. If this bug is about cipher-suites enabled by default, it needs to be fixed in NSS. For explicit control over the enabled cipher-suites in libcurl, there already is bug 1066065 pending for approval.
Since the problem described in this bug report should be
resolved in a recent advisory, it has been closed with a
resolution of ERRATA.
For information on the advisory, and where to find the updated
files, follow the link below.
If the solution does not work for you, open a new bug report.
https://rhn.redhat.com/errata/RHBA-2015-2121.html
Description of problem: cURL does not support ECDHE-* cipher suites Version-Release number of selected component (if applicable): curl-7.29.0-19.el7 How reproducible: always Steps to Reproduce: 1. try to connect somewhere with curl using SSL/TLS 2. observe ciphers it offers (ssltap, wireshark, ...) Actual results: WITHOUT --tls1: cipher_suites[17] = { (0x009e) TLS/DHE-RSA/AES128-GCM/SHA256 (0x0033) TLS/DHE-RSA/AES128-CBC/SHA (0x0032) TLS/DHE-DSS/AES128-CBC/SHA (0x0067) TLS/DHE-RSA/AES128-CBC/SHA256 (0x0039) TLS/DHE-RSA/AES256-CBC/SHA (0x0038) TLS/DHE-DSS/AES256-CBC/SHA (0x006b) TLS/DHE-RSA/AES256-CBC/SHA256 (0x0016) SSL3/DHE-RSA/3DES192EDE-CBC/SHA (0x0013) SSL3/DHE-DSS/DES192EDE3CBC/SHA (0x009c) TLS/RSA/AES128-GCM/SHA256 (0x002f) TLS/RSA/AES128-CBC/SHA (0x003c) TLS/RSA/AES128-CBC/SHA256 (0x0035) TLS/RSA/AES256-CBC/SHA (0x003d) TLS/RSA/AES256-CBC/SHA256 (0x000a) SSL3/RSA/3DES192EDE-CBC/SHA (0x0005) SSL3/RSA/RC4-128/SHA (0x0004) SSL3/RSA/RC4-128/MD5 } WITH --tls1: cipher_suites[11] = { (0x0033) TLS/DHE-RSA/AES128-CBC/SHA (0x0032) TLS/DHE-DSS/AES128-CBC/SHA (0x0039) TLS/DHE-RSA/AES256-CBC/SHA (0x0038) TLS/DHE-DSS/AES256-CBC/SHA (0x0016) SSL3/DHE-RSA/3DES192EDE-CBC/SHA (0x0013) SSL3/DHE-DSS/DES192EDE3CBC/SHA (0x002f) TLS/RSA/AES128-CBC/SHA (0x0035) TLS/RSA/AES256-CBC/SHA (0x000a) SSL3/RSA/3DES192EDE-CBC/SHA (0x0005) SSL3/RSA/RC4-128/SHA (0x0004) SSL3/RSA/RC4-128/MD5 } Expected results: also ECDHE-* cipher suites are offered