It was reported that cipherstring parsing code incorrectly implements the multi-keyword mode in nss_compat_ossl.

As a consequence anyone using a combination like

  ECDH+SHA

will not get the expected set of ciphers

  ECDH-RSA-RC4-SHA
  ECDH-RSA-DES-CBC3-SHA
  ECDH-RSA-AES128-SHA
  ECDH-RSA-AES256-SHA
  ECDH-ECDSA-RC4-SHA
  ECDH-ECDSA-DES-CBC3-SHA
  ECDH-ECDSA-AES128-SHA
  ECDH-ECDSA-AES256-SHA
  ECDHE-RSA-RC4-SHA
  ECDHE-RSA-DES-CBC3-SHA
  ECDHE-RSA-AES128-SHA
  ECDHE-RSA-AES256-SHA
  ECDHE-ECDSA-RC4-SHA
  ECDHE-ECDSA-DES-CBC3-SHA
  ECDHE-ECDSA-AES128-SHA
  ECDHE-ECDSA-AES256-SHA

but instead will match

  DES-CBC-SHA
  DES-CBC3-SHA
  RC4-SHA
  EDH-RSA-DES-CBC-SHA
  EDH-RSA-DES-CBC3-SHA
  EDH-DSS-DES-CBC-SHA
  EDH-DSS-DES-CBC3-SHA
  EXP1024-DES-CBC-SHA
  EXP1024-RC4-SHA
  SEED-SHA
  AES128-SHA
  AES256-SHA
  CAMELLIA256-SHA
  CAMELLIA128-SHA
  DHE-RSA-AES128-SHA
  DHE-RSA-AES256-SHA
  DHE-RSA-CAMELLIA128-SHA
  DHE-RSA-CAMELLIA256-SHA
  DHE-DSS-RC4-SHA
  DHE-DSS-AES128-SHA
  DHE-DSS-AES256-SHA
  DHE-DSS-CAMELLIA128-SHA
  DHE-DSS-CAMELLIA256-SHA
  ECDH-RSA-RC4-SHA
  ECDH-RSA-DES-CBC3-SHA
  ECDH-RSA-AES128-SHA
  ECDH-RSA-AES256-SHA
  ECDH-ECDSA-RC4-SHA
  ECDH-ECDSA-DES-CBC3-SHA
  ECDH-ECDSA-AES128-SHA
  ECDH-ECDSA-AES256-SHA
  ECDHE-RSA-RC4-SHA
  ECDHE-RSA-DES-CBC3-SHA
  ECDHE-RSA-AES128-SHA
  ECDHE-RSA-AES256-SHA
  ECDHE-ECDSA-RC4-SHA
  ECDHE-ECDSA-DES-CBC3-SHA
  ECDHE-ECDSA-AES128-SHA
  ECDHE-ECDSA-AES256-SHA

Acknowledgements:

Red Hat would like to thank Martin Poole of Software Maintenance Engineering group for reporting this issue.