CVE-2020-26268 - log back

CVE-2020-26268 edited at 16 Dec 2020 20:40:13
Type
- Insufficient validation
+ Denial of service
CVE-2020-26268 edited at 15 Dec 2020 13:30:33
References
https://github.com/tensorflow/tensorflow/security/advisories/GHSA-hhvc-g5hv-48c6
- https://github.com/tensorflow/tensorflow/commit/c1e1fc899ad5f8c725dcbb6470069890b5060bc7
+ https://github.com/tensorflow/tensorflow/commit/eccdffd4ba5604fd53bcc48a9b20490dd7b732b4
CVE-2020-26268 edited at 11 Dec 2020 14:04:28
Severity
- Unknown
+ Low
Remote
- Unknown
+ Local
Type
- Unknown
+ Insufficient validation
Description
+ In affected versions of TensorFlow the tf.raw_ops.ImmutableConst operation returns a constant tensor created from a memory mapped file which is assumed immutable. However, if the type of the tensor is not an integral type, the operation crashes the Python interpreter as it tries to write to the memory area. If the file is too small, TensorFlow properly returns an error as the memory area has fewer bytes than what is needed for the tensor it creates. However, as soon as there are enough bytes, the above snippet causes a segmentation fault. This is because the allocator used to return the buffer data is not marked as returning an opaque handle since the needed virtual method is not overridden. This is fixed in versions 1.15.5, 2.0.4, 2.1.3, 2.2.2, 2.3.2, and 2.4.0.
References
+ https://github.com/tensorflow/tensorflow/security/advisories/GHSA-hhvc-g5hv-48c6
+ https://github.com/tensorflow/tensorflow/commit/c1e1fc899ad5f8c725dcbb6470069890b5060bc7
Notes
CVE-2020-26268 created at 11 Dec 2020 13:58:53