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Fix off-by-one errors in ssl_cipher_get_evp()

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In the ssl_cipher_get_evp() function, fix off-by-one errors in index validation before accessing arrays.

Bug discovered and fixed by Miod Vallat from the OpenBSD team.

PR#3375
This commit is contained in:
Miod Vallat 2014-06-04 03:59:58 -04:00 committed by Matt Caswell
parent cf1b08cdd7
commit 2841d6ca9f
1 changed files with 2 additions and 2 deletions
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4
ssl/ssl_ciph.c
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@ -582,7 +582,7 @@ int ssl_cipher_get_evp(const SSL_SESSION *s, const EVP_CIPHER **enc,
break;
}
if ((i < 0) || (i > SSL_ENC_NUM_IDX))
if ((i < 0) || (i >= SSL_ENC_NUM_IDX))
*enc=NULL;
else
{
@ -616,7 +616,7 @@ int ssl_cipher_get_evp(const SSL_SESSION *s, const EVP_CIPHER **enc,
i= -1;
break;
}
if ((i < 0) || (i > SSL_MD_NUM_IDX))
if ((i < 0) || (i >= SSL_MD_NUM_IDX))
{
*md=NULL;
if (mac_pkey_type!=NULL) *mac_pkey_type = NID_undef;