bpo-40645: restrict HMAC key len to INT_MAX #20238
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Signed-off-by: Christian Heimes <christian@python.org>
vstinner
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May 19, 2020
| @@ -1403,6 +1403,12 @@ _hashlib_hmac_new_impl(PyObject *module, Py_buffer *key, PyObject *msg_obj, | |||
| HMACobject *self = NULL; | |||
| int r; | |||
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| if (key->len > INT_MAX) { | |||
| PyErr_SetString(PyExc_OverflowError, | |||
| "key is too long."); | |||
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"2 GB key should be enough for everyone" :-D
|
Thanks @tiran for the PR |
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GH-20245 is a backport of this pull request to the 3.9 branch. |
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Signed-off-by: Christian Heimes <christian@python.org> Automerge-Triggered-By: @tiran
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Signed-off-by: Christian Heimes christian@python.org
https://bugs.python.org/issue40645
Automerge-Triggered-By: @tiran