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Ensure that mbedtls_pk_parse_key() does not allocate 0 bytes

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Andres Amaya Garcia 2018-01-23 20:03:52 +00:00
parent c9d6226d2c
commit e9124b943d
1 changed files with 3 additions and 0 deletions
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3
library/pkparse.c
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@ -1274,6 +1274,9 @@ int mbedtls_pk_parse_key( mbedtls_pk_context *pk,
{ {
unsigned char *key_copy; unsigned char *key_copy;
if( keylen == 0 )
return( MBEDTLS_ERR_PK_KEY_INVALID_FORMAT );
if( ( key_copy = mbedtls_calloc( 1, keylen ) ) == NULL ) if( ( key_copy = mbedtls_calloc( 1, keylen ) ) == NULL )
return( MBEDTLS_ERR_PK_ALLOC_FAILED ); return( MBEDTLS_ERR_PK_ALLOC_FAILED );