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PDSA-2023-004: FPE in paddle.linalg.matrix_power

CVE Number

CVE-2023-38672

Impact

When dim contains 0, paddle.linalg.matrix_power will trigger a float point exception. The PoC is as follows:

import paddle
import numpy as np
from paddle.linalg import matrix_power

x = paddle.to_tensor(np.random.uniform(-10, 10, [1, 1, 0, 0]).astype(np.float32))

matrix_power(x, -1)

Patches

We have patched the issue in commit 09926af166b060c9a9845c309110d3baa82921fd. The fix will be included in PaddlePaddle 2.5.0.

For more information

Please consult our security guide for more information regarding the security model and how to contact us with issues and questions.

Attribution

This vulnerability has been reported by Tong Liu of ShanghaiTech University.