Pdsa 2023 006

PDSA-2023-006: FPE in paddle.nanmedian

CVE Number

CVE-2023-38674

Impact

When x dim calculates stride to 0, paddle.nanmedian triggers FPE by numel / stride. The PoC is as follows:

import paddle
import numpy as np

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

Patches

We have patched the issue in commit 9bb6c669206c4bcc3ce3f6daf8a55650e190c1a1. The fix will be included in PaddlePaddle 2.6.0.

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.