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Merge branch for fix for #502 - Unchecked calls

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	ChangeLog
This commit is contained in:
Simon Butcher 2016-10-14 01:03:11 +01:00
parent d9d0cda9fe 8df1bee06f
commit 72388387c0
2 changed files with 25 additions and 4 deletions
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4
ChangeLog
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@ -32,6 +32,10 @@ Bugfix
* Fix documentation and implementation missmatch for function arguments of
mbedtls_gcm_finish(). Found by cmiatpaar. #602
* Guarantee that P>Q at RSA key generation. Found by inestlerode. #558
* Fix missing return code check after call to mbedtls_md_setup() that could
result in usage of invalid md_ctx in mbedtls_rsa_rsaes_oaep_encrypt(),
mbedtls_rsa_rsaes_oaep_decrypt(), mbedtls_rsa_rsassa_pss_sign() and
mbedtls_rsa_rsassa_pss_verify_ext(). Fixed by Brian J. Murray.
= mbed TLS 2.1.5 branch released 2016-06-28

25
library/rsa.c
View file

@ -551,7 +551,11 @@ int mbedtls_rsa_rsaes_oaep_encrypt( mbedtls_rsa_context *ctx,
memcpy( p, input, ilen );
mbedtls_md_init( &md_ctx );
mbedtls_md_setup( &md_ctx, md_info, 0 );
if( ( ret = mbedtls_md_setup( &md_ctx, md_info, 0 ) ) != 0 )
{
mbedtls_md_free( &md_ctx );
return( ret );
}
// maskedDB: Apply dbMask to DB
//
@ -726,7 +730,12 @@ int mbedtls_rsa_rsaes_oaep_decrypt( mbedtls_rsa_context *ctx,
* Unmask data and generate lHash
*/
mbedtls_md_init( &md_ctx );
mbedtls_md_setup( &md_ctx, md_info, 0 );
if( ( ret = mbedtls_md_setup( &md_ctx, md_info, 0 ) ) != 0 )
{
mbedtls_md_free( &md_ctx );
return( ret );
}
/* Generate lHash */
mbedtls_md( md_info, label, label_len, lhash );
@ -972,7 +981,11 @@ int mbedtls_rsa_rsassa_pss_sign( mbedtls_rsa_context *ctx,
p += slen;
mbedtls_md_init( &md_ctx );
mbedtls_md_setup( &md_ctx, md_info, 0 );
if( ( ret = mbedtls_md_setup( &md_ctx, md_info, 0 ) ) != 0 )
{
mbedtls_md_free( &md_ctx );
return( ret );
}
// Generate H = Hash( M' )
//
@ -1245,7 +1258,11 @@ int mbedtls_rsa_rsassa_pss_verify_ext( mbedtls_rsa_context *ctx,
return( MBEDTLS_ERR_RSA_BAD_INPUT_DATA );
mbedtls_md_init( &md_ctx );
mbedtls_md_setup( &md_ctx, md_info, 0 );
if( ( ret = mbedtls_md_setup( &md_ctx, md_info, 0 ) ) != 0 )
{
mbedtls_md_free( &md_ctx );
return( ret );
}
mgf_mask( p, siglen - hlen - 1, p + siglen - hlen - 1, hlen, &md_ctx );