trusty openssl upgrade causes connections to fail

I didn't see anything in the changelog that would explain this:

Get:1 Changelog for libssl1.0.0 (http://changelogs.ubuntu.com/changelogs/pool/main/o/openssl/openssl_1.0.1f-1ubuntu2.15/changelog) [131 kB]
openssl (1.0.1f-1ubuntu2.15) trusty-security; urgency=medium

  * SECURITY IMPROVEMENT: reject dh keys smaller than 768 bits
    - debian/patches/reject_small_dh.patch: reject small dh keys in
      ssl/s3_clnt.c, ssl/ssl.h, ssl/ssl_err.c, update documentation in
      doc/ssl/SSL_CTX_set_tmp_dh_callback.pod, make s_server use 2048-bit
      dh in apps/s_server.c, clarify docs in doc/apps/dhparam.pod.
  * SECURITY UPDATE: denial of service and possible code execution via
    invalid free in DTLS
    - debian/patches/CVE-2014-8176.patch: fix invalid free in ssl/d1_lib.c.
    - CVE-2014-8176
  * SECURITY UPDATE: denial of service via malformed ECParameters
    - debian/patches/CVE-2015-1788.patch: improve logic in
      crypto/bn/bn_gf2m.c.
    - CVE-2015-1788
  * SECURITY UPDATE: denial of service via out-of-bounds read in
    X509_cmp_time
    - debian/patches/CVE-2015-1789.patch: properly parse time format in
      crypto/x509/x509_vfy.c.
    - CVE-2015-1789
  * SECURITY UPDATE: denial of service via missing EnvelopedContent
    - debian/patches/CVE-2015-1790.patch: handle NULL data_body in
      crypto/pkcs7/pk7_doit.c.
    - CVE-2015-1790
  * SECURITY UPDATE: race condition in NewSessionTicket
    - debian/patches/CVE-2015-1791.patch: create a new session in
      ssl/s3_clnt.c, ssl/ssl.h, ssl/ssl_err.c, ssl/ssl_locl.h,
      ssl/ssl_sess.c.
    - debian/patches/CVE-2015-1791-2.patch: fix kerberos issue in
      ssl/ssl_sess.c.
    - debian/patches/CVE-2015-1791-3.patch: more ssl_session_dup fixes in
      ssl/ssl_sess.c.
    - CVE-2015-1791
  * SECURITY UPDATE: CMS verify infinite loop with unknown hash function
    - debian/patches/CVE-2015-1792.patch: fix infinite loop in
      crypto/cms/cms_smime.c.
    - CVE-2015-1792

 -- Marc Deslauriers <email address hidden> Thu, 11 Jun 2015 07:34:23 -0400

Same here on Debian 7 (Wheezy):

mysql -u smith -h db.example.com -p --ssl-ca=/etc/ssl/certs/StartCom_Certification_Authority.pem
ERROR 2026 (HY000): SSL connection error: error:00000001:lib(0):func(0):reason(1)

Workaround:

mysql -u smith -h db.example.com -p --ssl-ca=/etc/ssl/certs/StartCom_Certification_Authority.pem --ssl-cipher=AES128-SHA
...
\s
SSL: Cipher in use is AES128-SHA

Maybe this (openssl update breaks mysql DHE): https://bugs.launchpad.net/percona-server/+bug/1462856

Verified that this is a DHE difference.

https://bugs.mysql.com/bug.php?id=77275