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Merge pull request #6215 from daverodgman/pr6185-backport

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Backprort: ssl_tls12_server: fix potential NULL-dereferencing
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Dave Rodgman 2022-08-19 20:22:36 +01:00 committed by GitHub
commit 906bdbb66e
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1 changed files with 7 additions and 1 deletions
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8
library/ssl_srv.c
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@ -3903,8 +3903,14 @@ static int ssl_decrypt_encrypted_pms( mbedtls_ssl_context *ssl,
size_t peer_pmssize )
{
int ret = MBEDTLS_ERR_ERROR_CORRUPTION_DETECTED;
mbedtls_x509_crt *own_cert = mbedtls_ssl_own_cert( ssl );
if( own_cert == NULL ) {
MBEDTLS_SSL_DEBUG_MSG( 1, ( "got no local certificate" ) );
return( MBEDTLS_ERR_SSL_NO_CLIENT_CERTIFICATE );
}
mbedtls_pk_context *public_key = &own_cert->pk;
mbedtls_pk_context *private_key = mbedtls_ssl_own_key( ssl );
mbedtls_pk_context *public_key = &mbedtls_ssl_own_cert( ssl )->pk;
size_t len = mbedtls_pk_get_len( public_key );
#if defined(MBEDTLS_SSL_ASYNC_PRIVATE)