NULL pointer dereference in Google Tensorflow
CVE-2020-15191
In Tensorflow before versions 2.2.1 and 2.3.1, if a user passes an invalid argument to `dlpack.to_dlpack` the expected validations will cause variables to bind to `nullptr` while setting a `status` variable to the error condition. However, this `status` argument is not properly checked. Hence, code following these methods will bind references to null pointers. This is undefined behavior and reported as an error if compiling with `-fsanitize=null`. The issue is patched in commit 22e07fb204386768e5bcbea563641ea11f96ceb8 and is released in TensorFlow versions 2.2.1, or 2.3.1.
Vulnerability class: Drupalgeddon 2 (CVE-2018-7600)
Published · last modified .
CVSS v3 metric
CVSS v3 base score 5.3 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L.
EPSS exploit prediction
EPSS: 0.009 (58.1th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 58th percentile — 58.1% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.009 · newest: 0.009 · change: 0.000
Affected products
- Google Tensorflow — versions 2.2.0, 2.3.0
- Tensorflow — versions = 2.2.0, = 2.3.0
- openSUSE Leap — versions 15.2
Weakness classification (CWE)
References
- github.com/tensorflow/tensorflow/releases/tag/v2.3.1 (Third Party Advisory)
- github.com/tensorflow/tensorflow/commit/22e07fb204386768e5bcbea563641ea11f96ceb8 (Patch, Third Party Advisory)
- github.com/tensorflow/tensorflow/security/advisories/GHSA-q8qj-fc9q-cphr (Exploit, Third Party Advisory)
- lists.opensuse.org/opensuse-security-announce/2020-10/msg00065.html (vendor-advisory, Mailing List, Third Party Advisory)
Frequently asked questions
- What is CVE-2020-15191?
- CVE-2020-15191 is a medium-severity vulnerability in Google Tensorflow, classified under Improper Input Validation. CVSS score: 5.3/10. Published 2020-09-25.
- How severe is CVE-2020-15191?
- Medium severity. CVSS v3 base score is 5.3 out of 10.