Vulnerability · Published May 14, 2021 · Assigned by GitHub_M

CVE-2021-29570Heap out of bounds read in `MaxPoolGradWithArgmax`

Low 2.5

In plain English

A low-severity out-of-bounds read in tensorflow from tensorflow. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.2% (higher than 5% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.

Severity (CVSS 3.1)2.5Low
Exploit odds (30 days)0.2%top 95.4% of all CVEs
Exploited in the wildNo reportsnot in CISA KEV
Attack toolingNoneno public tooling known

Official description

TensorFlow is an end-to-end open source platform for machine learning. The implementation of `tf.raw_ops.MaxPoolGradWithArgmax` can cause reads outside of bounds of heap allocated data if attacker supplies specially crafted inputs. The implementation(https://github.com/tensorflow/tensorflow/blob/ef0c008ee84bad91ec6725ddc42091e19a30cf0e/tensorflow/core/kernels/maxpooling_op.cc#L1016-L1017) uses the same value to index in two different arrays but there is no guarantee that the sizes are identical. 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.

Affected packages & fixed versions

EcosystemPackageFixed inAdvisory
PyPItensorflow2.3.3GHSA-545v-42p7-98fq
PyPItensorflow2.4.2GHSA-545v-42p7-98fq
PyPItensorflow2.1.4GHSA-545v-42p7-98fq
PyPItensorflow2.1.4, 2.2.3, 2.3.3, 2.4.2PYSEC-2021-207
PyPItensorflow2.2.3GHSA-545v-42p7-98fq
PyPItensorflow-cpu2.4.2GHSA-545v-42p7-98fq
PyPItensorflow-cpu2.1.4GHSA-545v-42p7-98fq
PyPItensorflow-cpu2.2.3GHSA-545v-42p7-98fq
PyPItensorflow-cpu2.3.3GHSA-545v-42p7-98fq
PyPItensorflow-cpu2.1.4, 2.2.3, 2.3.3, 2.4.2PYSEC-2021-498
PyPItensorflow-gpu2.3.3GHSA-545v-42p7-98fq
PyPItensorflow-gpu2.4.2GHSA-545v-42p7-98fq
PyPItensorflow-gpu2.1.4GHSA-545v-42p7-98fq
PyPItensorflow-gpu2.1.4, 2.2.3, 2.3.3, 2.4.2PYSEC-2021-696
PyPItensorflow-gpu2.2.3GHSA-545v-42p7-98fq

Affected products (as reported)

VendorProductVersions
tensorflow tensorflow < 2.1.4>= 2.2.0, < 2.2.3>= 2.3.0, < 2.3.3>= 2.4.0, < 2.4.2

Weakness: CWE-125 · Vector: CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:L

References