CVE-2021-29533

critical
Published 2021-05-21 · Modified 2023-12-06
CVSS v3
CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:L
CVSS v2
VIR risk
9.5

Description

TensorFlow is an end-to-end open source platform for machine learning. An attacker can trigger a denial of service via a `CHECK` failure by passing an empty image to `tf.raw_ops.DrawBoundingBoxes`. This is because the implementation(https://github.com/tensorflow/tensorflow/blob/ea34a18dc3f5c8d80a40ccca1404f343b5d55f91/tensorflow/core/kernels/image/draw_bounding_box_op.cc#L148-L165) uses `CHECK_*` assertions instead of `OP_REQUIRES` to validate user controlled inputs. Whereas `OP_REQUIRES` allows returning an error condition back to the user, the `CHECK_*` macros result in a crash if the condition is false, similar to `assert`. In this case, `height` is 0 from the `images` input. This results in `max_box_row_clamp` being negative and the assertion being falsified, followed by aborting program execution. The fix will be included in TensorFlow 2.5.0. We will also cherrypick this commit on TensorFlow 2.4.2, TensorFlow 2.3.3, TensorFlow 2.2.3 and TensorFlow 2.1.4, as these are also affected and still in supported range.

Predictions

Exploit likelihood
20%
Patch ETA

Heuristic predictions, AS-IS, for prioritization only.

Mitigations

vendor Authored 2026-05-27

Vendor advisory: debian — https://security-tracker.debian.org/tracker/CVE-2021-29533

OS impact

OSVersionStatusFixed in
arch archfixed2.5.0-1
debian debianforkyfixed0
debian debiansidfixed0

Package impact

EcosystemPackageVulnerableFixed
python PyPItensorflow<2.1.42.1.4
python PyPItensorflow>=2.2.0,<2.2.32.2.3
python PyPItensorflow>=2.4.0,<2.4.22.4.2
python PyPItensorflow-gpu>=2.3.0,<2.3.32.3.3
python PyPItensorflow-gpu>=2.2.0,<2.2.32.2.3
python PyPItensorflow-cpu>=2.3.0,<2.3.32.3.3
python PyPItensorflow-cpu>=2.2.0,<2.2.32.2.3
python PyPItensorflow-cpu<2.1.42.1.4
python PyPItensorflow-cpu>=2.4.0,<2.4.22.4.2
python PyPItensorflow-gpu<2.1.42.1.4
python PyPItensorflow>=2.3.0,<2.3.32.3.3
python PyPItensorflow-gpu>=2.4.0,<2.4.22.4.2
python PyPItensorflow<b432a38fe0e1b4b904a6c222cbce794c39703e87||>=2.4.0,<2.4.3b432a38fe0e1b4b904a6c222cbce794c39703e87
python PyPItensorflow-cpu<b432a38fe0e1b4b904a6c222cbce794c39703e87||>=2.4.0,<2.4.3b432a38fe0e1b4b904a6c222cbce794c39703e87
python PyPItensorflow-gpu<b432a38fe0e1b4b904a6c222cbce794c39703e87||>=2.4.0,<2.4.3b432a38fe0e1b4b904a6c222cbce794c39703e87

References

Verify integrity in audit chain (admin only). AS-IS.