CVE-2021-41208

Summary

TensorFlow is an open source platform for machine learning. In affected versions the code for boosted trees in TensorFlow is still missing validation. As a result, attackers can trigger denial of service (via dereferencing nullptrs or via CHECK-failures) as well as abuse undefined behavior (binding references to nullptrs). An attacker can also read and write from heap buffers, depending on the API that gets used and the arguments that are passed to the call. Given that the boosted trees implementation in TensorFlow is unmaintained, it is recommend to no longer use these APIs. We will deprecate TensorFlow's boosted trees APIs in subsequent releases. 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.

Affected Software

VendorProductVersion RangeStatus
tensorflowtensorflow>= 2.6.0, < 2.6.1affected
tensorflowtensorflow>= 2.5.0, < 2.5.2affected
tensorflowtensorflow< 2.4.4affected

Weaknesses

  • CWE-476: CWE-476: NULL Pointer Dereference
  • CWE-824: CWE-824: Access of Uninitialized Pointer

ADP Enrichment

CVE Program Container

Additional References

References