Full Disclosure mailing list archives
Re: heartbleed OpenSSL bug CVE-2014-0160
From: Jann Horn <jann () thejh net>
Date: Fri, 11 Apr 2014 01:06:54 +0200
On Wed, Apr 09, 2014 at 09:59:59PM -0400, Peter Malone wrote:
Unless I'm mistaken, the following memcmp is vulnerable to a remote timing attack. https://github.com/openssl/openssl/blob/master/ssl/ssl_lib.c#L1974 static int ssl_session_cmp(const SSL_SESSION *a,const SSL_SESSION *b) { if (a->ssl_version != b->ssl_version) return(1); if (a->session_id_length != b->session_id_length) return(1); return(memcmp(a->session_id,b->session_id,a->session_id_length)); }
Not used anywhere though, just a corpse lying around in the code.
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Current thread:
- Re: heartbleed OpenSSL bug CVE-2014-0160, (continued)
- Re: heartbleed OpenSSL bug CVE-2014-0160 Reindl Harald (Apr 10)
- Re: heartbleed OpenSSL bug CVE-2014-0160 Reindl Harald (Apr 11)
- Re: heartbleed OpenSSL bug CVE-2014-0160 Seth Arnold (Apr 11)
- Re: heartbleed OpenSSL bug CVE-2014-0160 Daniel Franke (Apr 09)
- Re: heartbleed OpenSSL bug CVE-2014-0160 Brandon Perry (Apr 09)
- Re: heartbleed OpenSSL bug CVE-2014-0160 Aidan Thornton (Apr 09)
- Re: heartbleed OpenSSL bug CVE-2014-0160 Coderaptor (Apr 09)
- Re: heartbleed OpenSSL bug CVE-2014-0160 Jann Horn (Apr 10)
- Re: heartbleed OpenSSL bug CVE-2014-0160 Brandon Perry (Apr 10)
- Re: heartbleed OpenSSL bug CVE-2014-0160 David Tomaschik (Apr 10)
- Re: heartbleed OpenSSL bug CVE-2014-0160 Ivan .Heca (Apr 10)
- Re: heartbleed OpenSSL bug CVE-2014-0160 Michal Zalewski (Apr 10)
- Re: heartbleed OpenSSL bug CVE-2014-0160 Paul Vixie (Apr 10)
- Re: heartbleed OpenSSL bug CVE-2014-0160 Paul Vixie (Apr 10)
- Re: heartbleed OpenSSL bug CVE-2014-0160 Ivan .Heca (Apr 11)
- Re: heartbleed OpenSSL bug CVE-2014-0160 Brandon Perry (Apr 11)
- Re: heartbleed OpenSSL bug CVE-2014-0160 Marco Davids (priv) (Apr 11)