CVE-2021-41227

Advisory

TensorFlow versions 2.4.4, 2.5.2 and 2.6.1 include a fix for CVE-2021-41227: In affected versions, the 'ImmutableConst' operation in TensorFlow can be tricked into reading arbitrary memory contents. This is because the 'tstring' TensorFlow string class has a special case for memory mapped strings but the operation itself does not offer any support for this datatype. The fix is also included in TensorFlow 2.7.0.
https://github.com/tensorflow/tensorflow/security/advisories/GHSA-j8c8-67vp-6mx7
https://github.com/tensorflow/tensorflow/commit/1cb6bb6c2a6019417c9adaf9e6843ba75ee2580b
https://github.com/tensorflow/tensorflow/commit/3712a2d3455e6ccb924daa5724a3652a86f6b585

Affected package

Affected versions

Fixed versions

Vulnerability changelog

TensorFlow is an open source platform for machine learning. In affected versions the `ImmutableConst` operation in TensorFlow can be tricked into reading arbitrary memory contents. This is because the `tstring` TensorFlow string class has a special case for memory mapped strings but the operation itself does not offer any support for this datatype. 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. See CVE-2021-41227.


CONFIRM:https://github.com/tensorflow/tensorflow/security/advisories/GHSA-j8c8-67vp-6mx7: https://github.com/tensorflow/tensorflow/security/advisories/GHSA-j8c8-67vp-6mx7
MISC:https://github.com/tensorflow/tensorflow/commit/1cb6bb6c2a6019417c9adaf9e6843ba75ee2580b: https://github.com/tensorflow/tensorflow/commit/1cb6bb6c2a6019417c9adaf9e6843ba75ee2580b
MISC:https://github.com/tensorflow/tensorflow/commit/3712a2d3455e6ccb924daa5724a3652a86f6b585: https://github.com/tensorflow/tensorflow/commit/3712a2d3455e6ccb924daa5724a3652a86f6b585

Resources

• https://github.com/tensorflow/tensorflow/security/advisories/GHSA-j8c8-67vp-6mx7
• https://github.com/tensorflow/tensorflow/commit/1cb6bb6c2a6019417c9adaf9e6843ba75ee2580b
• https://github.com/tensorflow/tensorflow/commit/3712a2d3455e6ccb924daa5724a3652a86f6b585
• https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-41227