1. CVE-Search
  2. CVE-2021-37649
ID CVE-2021-37649
Summary TensorFlow is an end-to-end open source platform for machine learning. The code for `tf.raw_ops.UncompressElement` can be made to trigger a null pointer dereference. The [implementation](https://github.com/tensorflow/tensorflow/blob/f24faa153ad31a4b51578f8181d3aaab77a1ddeb/tensorflow/core/kernels/data/experimental/compression_ops.cc#L50-L53) obtains a pointer to a `CompressedElement` from a `Variant` tensor and then proceeds to dereference it for decompressing. There is no check that the `Variant` tensor contained a `CompressedElement`, so the pointer is actually `nullptr`. We have patched the issue in GitHub commit 7bdf50bb4f5c54a4997c379092888546c97c3ebd. The fix will be included in TensorFlow 2.6.0. We will also cherrypick this commit on TensorFlow 2.5.1, TensorFlow 2.4.3, and TensorFlow 2.3.4, as these are also affected and still in supported range.
References
Vulnerable Configurations
  • cpe:2.3:a:google:tensorflow:2.3.0:-:*:*:*:*:*:*
    cpe:2.3:a:google:tensorflow:2.3.0:-:*:*:*:*:*:*
  • cpe:2.3:a:google:tensorflow:2.3.0:-:*:*:-:*:*:*
    cpe:2.3:a:google:tensorflow:2.3.0:-:*:*:-:*:*:*
  • cpe:2.3:a:google:tensorflow:2.3.0:-:*:*:lite:*:*:*
    cpe:2.3:a:google:tensorflow:2.3.0:-:*:*:lite:*:*:*
  • cpe:2.3:a:google:tensorflow:2.3.0:rc0:*:*:*:*:*:*
    cpe:2.3:a:google:tensorflow:2.3.0:rc0:*:*:*:*:*:*
  • cpe:2.3:a:google:tensorflow:2.3.0:rc0:*:*:-:*:*:*
    cpe:2.3:a:google:tensorflow:2.3.0:rc0:*:*:-:*:*:*
  • cpe:2.3:a:google:tensorflow:2.3.0:rc0:*:*:lite:*:*:*
    cpe:2.3:a:google:tensorflow:2.3.0:rc0:*:*:lite:*:*:*
  • cpe:2.3:a:google:tensorflow:2.3.0:rc1:*:*:*:*:*:*
    cpe:2.3:a:google:tensorflow:2.3.0:rc1:*:*:*:*:*:*
  • cpe:2.3:a:google:tensorflow:2.3.0:rc1:*:*:-:*:*:*
    cpe:2.3:a:google:tensorflow:2.3.0:rc1:*:*:-:*:*:*
  • cpe:2.3:a:google:tensorflow:2.3.0:rc1:*:*:lite:*:*:*
    cpe:2.3:a:google:tensorflow:2.3.0:rc1:*:*:lite:*:*:*
  • cpe:2.3:a:google:tensorflow:2.3.0:rc2:*:*:*:*:*:*
    cpe:2.3:a:google:tensorflow:2.3.0:rc2:*:*:*:*:*:*
  • cpe:2.3:a:google:tensorflow:2.3.0:rc2:*:*:-:*:*:*
    cpe:2.3:a:google:tensorflow:2.3.0:rc2:*:*:-:*:*:*
  • cpe:2.3:a:google:tensorflow:2.3.0:rc2:*:*:lite:*:*:*
    cpe:2.3:a:google:tensorflow:2.3.0:rc2:*:*:lite:*:*:*
  • cpe:2.3:a:google:tensorflow:2.3.1:*:*:*:*:*:*:*
    cpe:2.3:a:google:tensorflow:2.3.1:*:*:*:*:*:*:*
  • cpe:2.3:a:google:tensorflow:2.3.1:*:*:*:-:*:*:*
    cpe:2.3:a:google:tensorflow:2.3.1:*:*:*:-:*:*:*
  • cpe:2.3:a:google:tensorflow:2.3.1:*:*:*:lite:*:*:*
    cpe:2.3:a:google:tensorflow:2.3.1:*:*:*:lite:*:*:*
  • cpe:2.3:a:google:tensorflow:2.3.2:*:*:*:*:*:*:*
    cpe:2.3:a:google:tensorflow:2.3.2:*:*:*:*:*:*:*
  • cpe:2.3:a:google:tensorflow:2.4.0:-:*:*:*:*:*:*
    cpe:2.3:a:google:tensorflow:2.4.0:-:*:*:*:*:*:*
  • cpe:2.3:a:google:tensorflow:2.4.0:-:*:*:-:*:*:*
    cpe:2.3:a:google:tensorflow:2.4.0:-:*:*:-:*:*:*
  • cpe:2.3:a:google:tensorflow:2.4.0:rc0:*:*:*:*:*:*
    cpe:2.3:a:google:tensorflow:2.4.0:rc0:*:*:*:*:*:*
  • cpe:2.3:a:google:tensorflow:2.4.0:rc0:*:*:-:*:*:*
    cpe:2.3:a:google:tensorflow:2.4.0:rc0:*:*:-:*:*:*
  • cpe:2.3:a:google:tensorflow:2.4.0:rc0:*:*:lite:*:*:*
    cpe:2.3:a:google:tensorflow:2.4.0:rc0:*:*:lite:*:*:*
  • cpe:2.3:a:google:tensorflow:2.4.0:rc1:*:*:*:*:*:*
    cpe:2.3:a:google:tensorflow:2.4.0:rc1:*:*:*:*:*:*
  • cpe:2.3:a:google:tensorflow:2.4.0:rc1:*:*:-:*:*:*
    cpe:2.3:a:google:tensorflow:2.4.0:rc1:*:*:-:*:*:*
  • cpe:2.3:a:google:tensorflow:2.4.0:rc1:*:*:lite:*:*:*
    cpe:2.3:a:google:tensorflow:2.4.0:rc1:*:*:lite:*:*:*
  • cpe:2.3:a:google:tensorflow:2.4.0:rc2:*:*:*:*:*:*
    cpe:2.3:a:google:tensorflow:2.4.0:rc2:*:*:*:*:*:*
  • cpe:2.3:a:google:tensorflow:2.4.0:rc2:*:*:-:*:*:*
    cpe:2.3:a:google:tensorflow:2.4.0:rc2:*:*:-:*:*:*
  • cpe:2.3:a:google:tensorflow:2.4.0:rc2:*:*:lite:*:*:*
    cpe:2.3:a:google:tensorflow:2.4.0:rc2:*:*:lite:*:*:*
  • cpe:2.3:a:google:tensorflow:2.4.0:rc3:*:*:*:*:*:*
    cpe:2.3:a:google:tensorflow:2.4.0:rc3:*:*:*:*:*:*
  • cpe:2.3:a:google:tensorflow:2.4.0:rc3:*:*:-:*:*:*
    cpe:2.3:a:google:tensorflow:2.4.0:rc3:*:*:-:*:*:*
  • cpe:2.3:a:google:tensorflow:2.4.0:rc3:*:*:lite:*:*:*
    cpe:2.3:a:google:tensorflow:2.4.0:rc3:*:*:lite:*:*:*
  • cpe:2.3:a:google:tensorflow:2.4.0:rc4:*:*:*:*:*:*
    cpe:2.3:a:google:tensorflow:2.4.0:rc4:*:*:*:*:*:*
  • cpe:2.3:a:google:tensorflow:2.4.0:rc4:*:*:-:*:*:*
    cpe:2.3:a:google:tensorflow:2.4.0:rc4:*:*:-:*:*:*
  • cpe:2.3:a:google:tensorflow:2.4.1:*:*:*:*:*:*:*
    cpe:2.3:a:google:tensorflow:2.4.1:*:*:*:*:*:*:*
  • cpe:2.3:a:google:tensorflow:2.4.2:*:*:*:*:*:*:*
    cpe:2.3:a:google:tensorflow:2.4.2:*:*:*:*:*:*:*
  • cpe:2.3:a:google:tensorflow:2.5.0:*:*:*:*:*:*:*
    cpe:2.3:a:google:tensorflow:2.5.0:*:*:*:*:*:*:*
  • cpe:2.3:a:google:tensorflow:2.6.0:rc0:*:*:*:*:*:*
    cpe:2.3:a:google:tensorflow:2.6.0:rc0:*:*:*:*:*:*
  • cpe:2.3:a:google:tensorflow:2.6.0:rc1:*:*:*:*:*:*
    cpe:2.3:a:google:tensorflow:2.6.0:rc1:*:*:*:*:*:*
  • cpe:2.3:a:google:tensorflow:2.6.0:rc2:*:*:*:*:*:*
    cpe:2.3:a:google:tensorflow:2.6.0:rc2:*:*:*:*:*:*
CVSS
Base: 2.1 (as of 18-08-2021 - 16:26)
Impact:
Exploitability:
CWE CWE-476
CAPEC
Access
VectorComplexityAuthentication
LOCAL LOW NONE
Impact
ConfidentialityIntegrityAvailability
NONE NONE PARTIAL
cvss-vector via4 AV:L/AC:L/Au:N/C:N/I:N/A:P
Last major update 18-08-2021 - 16:26
Published 12-08-2021 - 19:15
Last modified 18-08-2021 - 16:26
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