CVE-2021-41197
Crashes due to overflow and `CHECK`-fail in ops with large tensor shapes
Description
TensorFlow is an open source platform for machine learning. In affected versions TensorFlow allows tensor to have a large number of dimensions and each dimension can be as large as desired. However, the total number of elements in a tensor must fit within an `int64_t`. If an overflow occurs, `MultiplyWithoutOverflow` would return a negative result. In the majority of TensorFlow codebase this then results in a `CHECK`-failure. Newer constructs exist which return a `Status` instead of crashing the binary. This is similar to CVE-2021-29584. The fix will be included in TensorFlow 2.7.0. We will also cherrypick this commit on TensorFlow 2.6.1, TensorFlow 2.5.2, and TensorFlow 2.4.4, as these are also affected and still in supported range.
How to fix CVE-2021-41197
To remediate CVE-2021-41197, upgrade the affected package to a fixed version below.
- —upgrade to 2.4.4 or later
- —upgrade to 2.6.1 or later
- —upgrade to a871989d7b6c18cdebf2fb4f0e5c5b62fbc19edf or later
- —upgrade to a871989d7b6c18cdebf2fb4f0e5c5b62fbc19edf or later
- —upgrade to 2.6.1 or later
- —upgrade to a871989d7b6c18cdebf2fb4f0e5c5b62fbc19edf or later
- —upgrade to 2.6.1 or later
Is CVE-2021-41197 being exploited?
Low — EPSS is 0.0%, meaning exploitation activity has not been observed at scale.
Affected packages (7)
- from 0, < 2.4.4, >= 2.5.0, < 2.5.2, >= 2.6.0, < 2.6.1
- >= 2.6.0, < 2.6.1
- from 0, < a871989d7b6c18cdebf2fb4f0e5c5b62fbc19edf, < d81b1351da3e8c884ff836b64458d94e4a157c15, < 7c1692bd417eb4f9b33ead749a41166d6080af85 | from 0, < 2.4.4, >= 2.5.0, < 2.5.2, >= 2.6.0, < 2.6.1, >= 2.7.0rc0, < 2.7.0
- from 0, < a871989d7b6c18cdebf2fb4f0e5c5b62fbc19edf, < d81b1351da3e8c884ff836b64458d94e4a157c15, < 7c1692bd417eb4f9b33ead749a41166d6080af85 | from 0, < 2.4.4, >= 2.5.0, < 2.5.2, >= 2.6.0, < 2.6.1, >= 2.7.0rc0, < 2.7.0
- >= 2.6.0, < 2.6.1
- from 0, < a871989d7b6c18cdebf2fb4f0e5c5b62fbc19edf, < d81b1351da3e8c884ff836b64458d94e4a157c15, < 7c1692bd417eb4f9b33ead749a41166d6080af85 | from 0, < 2.4.4, >= 2.5.0, < 2.5.2, >= 2.6.0, < 2.6.1, >= 2.7.0rc0, < 2.7.0
- >= 2.6.0, < 2.6.1
CVSS scores
| Source | Version | Severity | Vector |
|---|---|---|---|
| osv | CVSS 4.0 | — | CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N |
| osv | CVSS 3.1 | MEDIUM5.5 | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H |