diff options
Diffstat (limited to 'Modules/binascii.c')
| -rw-r--r-- | Modules/binascii.c | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/Modules/binascii.c b/Modules/binascii.c index 250f03a..6bb01d1 100644 --- a/Modules/binascii.c +++ b/Modules/binascii.c @@ -414,6 +414,13 @@ binascii_a2b_base64_impl(PyObject *module, Py_buffer *data, int strict_mode) if (this_ch == BASE64_PAD) { padding_started = 1; + if (strict_mode && quad_pos == 0) { + state = get_binascii_state(module); + if (state) { + PyErr_SetString(state->Error, "Excess padding not allowed"); + } + goto error_end; + } if (quad_pos >= 2 && quad_pos + ++pads >= 4) { /* A pad sequence means we should not parse more input. ** We've already interpreted the data from the quad at this point. |