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Fixed potential heap buffer overflow on large hostname setting

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(cherry picked from commit 75c1a6f97c)

Conflicts:
	library/ssl_tls.c
This commit is contained in:
Paul Bakker 2013-09-11 11:38:34 +02:00
parent fe7c24caa6
commit a13d744d2e
1 changed files with 5 additions and 1 deletions
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6
library/ssl_tls.c
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@ -3239,6 +3239,10 @@ int ssl_set_hostname( ssl_context *ssl, const char *hostname )
return( POLARSSL_ERR_SSL_BAD_INPUT_DATA );
ssl->hostname_len = strlen( hostname );
if( ssl->hostname_len + 1 == 0 )
return( POLARSSL_ERR_SSL_BAD_INPUT_DATA );
ssl->hostname = (unsigned char *) malloc( ssl->hostname_len + 1 );
if( ssl->hostname == NULL )
@ -3246,7 +3250,7 @@ int ssl_set_hostname( ssl_context *ssl, const char *hostname )
memcpy( ssl->hostname, (const unsigned char *) hostname,
ssl->hostname_len );
ssl->hostname[ssl->hostname_len] = '\0';
return( 0 );