Out-of-bounds read in TensorFlow - CVE-2020-26267
Published: December 11, 2020 / Updated: January 7, 2021
Vulnerability identifier: #VU49325
CSH Severity: Low
CVSS v4: 2 [CVSS:4.0/AV:L/AC:L/AT:P/PR:L/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N]
CVE-ID: CVE-2020-26267
CWE-ID: CWE-125
Exploitation vector: Local access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a local user to gain access to potentially sensitive information.
The vulnerability exists due to a boundary condition within the the tf.raw_ops.DataFormatVecPermute API when processing the src_format and dst_format attributes. The code assumes that these two arguments define a permutation of NHWC. A local user can run a specially crafted program to trigger out-of-bounds read error and read contents of memory on the system.
Affected software
TensorFlow
How to mitigate CVE-2020-26267
Install updates from vendor's website.
TensorFlow - addressed in versions 1.15.5, 2.0.4, 2.1.3, 2.2.2, 2.3.2, 2.4.0
External References
- https://github.com/tensorflow/tensorflow/commit/ebc70b7a592420d3d2f359e4b1694c236b82c7ae
- https://github.com/tensorflow/tensorflow/security/advisories/GHSA-c9f3-9wfr-wgh7
- https://github.com/tensorflow/tensorflow/releases/tag/v2.3.2
- https://github.com/tensorflow/tensorflow/releases/tag/v2.2.2
- https://github.com/tensorflow/tensorflow/releases/tag/v2.1.3
- https://github.com/tensorflow/tensorflow/releases/tag/v2.0.4
- https://github.com/tensorflow/tensorflow/releases/tag/v1.15.5