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HighVulnerability

CVE-2022-21727: Tensorflow integer overflow in shape inference for Dequantize

Identifier
CVE-2022-21727
Published
Record updated
View JSON
Affected
  • tensorflow < 2.5.3, fixed in 2.5.3, released February 2, 2022, 1 day before disclosure
  • tensorflow >= 2.6.0, < 2.6.3, fixed in 2.6.3, released February 2, 2022, 1 day before disclosure
  • tensorflow = 2.7.0, fixed in 2.7.1, released February 2, 2022, 1 day before disclosure
  • and 6 more
Known exploitation
Not listed in the CISA Known Exploited Vulnerabilities catalog at the last check.
EPSS
0.7%

Summary

TensorFlow's shape inference for `Dequantize` contains an integer overflow flaw. The `axis` argument can be `-1` or any positive value up to the input's number of dimensions, but the upper bound is never checked, and the code computes `axis + 1`, so an attacker can trigger the overflow.

Mitigation

The fix will be included in TensorFlow 2.8.0. The commit will also be cherry-picked to TensorFlow 2.7.1, TensorFlow 2.6.3, and TensorFlow 2.5.3.