[nginx-announce] nginx security advisory (CVE-2014-3616)

Maxim Dounin mdounin at mdounin.ru
Tue Sep 16 14:47:20 UTC 2014


A problem with SSL session cache in nginx was identified by Antoine
Delignat-Lavaud.  It was possible to reuse cached SSL sessions in
unrelated contexts, allowing virtual host confusion attacks in some
configurations by an attacker in a privileged network position

The problem affects nginx 0.5.6 - 1.7.4 if the same shared
ssl_session_cache and/or ssl_session_ticket_key are used for multiple
server{} blocks.

The problem is fixed in nginx 1.7.5, 1.6.2.

Further details can be found in the paper by Antoine Delignat-Lavaud
et al., available at http://bh.ht.vc/vhost_confusion.pdf.

Maxim Dounin

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