CVE-2021-41228

Description

TensorFlow is an open source platform for machine learning. In affected versions TensorFlow's `saved_model_cli` tool is vulnerable to a code injection as it calls `eval` on user supplied strings. This can be used by attackers to run arbitrary code on the plaform where the CLI tool runs. However, given that the tool is always run manually, the impact of this is not severe. We have patched this by adding a `safe` flag which defaults to `True` and an explicit warning for users. 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-2021-41228

To remediate CVE-2021-41228, upgrade the affected package to a fixed version below.

—upgrade to 2.4.4 or later
—upgrade to 2.5.2 or later
—upgrade to 8b202f08d52e8206af2bdb2112a62fafbc546ec7 or later
—upgrade to 8b202f08d52e8206af2bdb2112a62fafbc546ec7 or later
—upgrade to 2.5.2 or later
—upgrade to 8b202f08d52e8206af2bdb2112a62fafbc546ec7 or later
—upgrade to 2.5.2 or later

Is CVE-2021-41228 being exploited?

Low — EPSS is 0.0%, meaning exploitation activity has not been observed at scale.

Affected packages (7)

>= 2.4.0, < 2.4.4, >= 2.5.0, < 2.5.2, >= 2.6.0, < 2.6.1
>= 2.5.0, < 2.5.2
from 0, < 8b202f08d52e8206af2bdb2112a62fafbc546ec7 | 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, < 8b202f08d52e8206af2bdb2112a62fafbc546ec7 | from 0, < 2.4.4, >= 2.5.0, < 2.5.2, >= 2.6.0, < 2.6.1, >= 2.7.0rc0, < 2.7.0
>= 2.5.0, < 2.5.2
from 0, < 8b202f08d52e8206af2bdb2112a62fafbc546ec7 | from 0, < 2.4.4, >= 2.5.0, < 2.5.2, >= 2.6.0, < 2.6.1, >= 2.7.0rc0, < 2.7.0
>= 2.5.0, < 2.5.2

CVSS scores

Source	Version	Severity	Vector
osv	CVSS 4.0	—	CVSS:4.0/AV:L/AC:L/AT:P/PR:H/UI:N/VC:N/VI:N/VA:N/SC:H/SI:H/SA:H
osv	CVSS 3.1	HIGH7.5	CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:C/C:H/I:H/A:H