when s_client receives alert during handshake and is configured to export keying material, it will crash with a segmentation fault
current 1.0.2 and master are affected
reproducer:
openssl s_client -keymatexport EXPORT-label -connect google.com:443 -cipher IDEA
Result:
CONNECTED(00000003)
140315545597592:error:14077410:SSL routines:SSL23_GET_SERVER_HELLO:sslv3 alert
handshake failure:s23_clnt.c:769:
---
no peer certificate available
---
No client certificate CA names sent
---
SSL handshake has read 7 bytes and written 99 bytes
---
New, (NONE), Cipher is (NONE)
Secure Renegotiation IS NOT supported
Compression: NONE
Expansion: NONE
No ALPN negotiated
SSL-Session:
Protocol : TLSv1.2
Cipher : 0000
Session-ID:
Session-ID-ctx:
Master-Key:
Key-Arg : None
PSK identity: None
PSK identity hint: None
SRP username: None
Start Time: 1467213777
Timeout : 300 (sec)
Verify return code: 0 (ok)
Keying material exporter:
Label: 'EXPORT-label'
Length: 20 bytes
Segmentation fault (core dumped)
--
Regards,
Hubert Kario
Senior Quality Engineer, QE BaseOS Security team
Web: www.cz.redhat.com
Red Hat Czech s.r.o., Purkyňova 99/71, 612 45, Brno, Czech Republic
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