Vulnerability Details : CVE-2021-29598
TensorFlow is an end-to-end open source platform for machine learning. The implementation of the `SVDF` TFLite operator is vulnerable to a division by zero error(https://github.com/tensorflow/tensorflow/blob/7f283ff806b2031f407db64c4d3edcda8fb9f9f5/tensorflow/lite/kernels/svdf.cc#L99-L102). An attacker can craft a model such that `params->rank` would be 0. 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.
Exploit prediction scoring system (EPSS) score for CVE-2021-29598
Probability of exploitation activity in the next 30 days: 0.05%
Percentile, the proportion of vulnerabilities that are scored at or less: ~ 15 % EPSS Score History EPSS FAQ
CVSS scores for CVE-2021-29598
Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Source |
---|---|---|---|---|---|
4.6
|
MEDIUM | AV:L/AC:L/Au:N/C:P/I:P/A:P |
3.9
|
6.4
|
nvd@nist.gov |
7.8
|
HIGH | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H |
1.8
|
5.9
|
nvd@nist.gov |
2.5
|
LOW | CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:L |
1.0
|
1.4
|
security-advisories@github.com |
CWE ids for CVE-2021-29598
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The product divides a value by zero.Assigned by: security-advisories@github.com (Primary)
References for CVE-2021-29598
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https://github.com/tensorflow/tensorflow/security/advisories/GHSA-pmpr-55fj-r229
Division by zero in TFLite's implementation of `SVDF` · Advisory · tensorflow/tensorflow · GitHubExploit;Patch;Third Party Advisory
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https://github.com/tensorflow/tensorflow/commit/6841e522a3e7d48706a02e8819836e809f738682
Prevent division by 0 · tensorflow/tensorflow@6841e52 · GitHubPatch;Third Party Advisory
Products affected by CVE-2021-29598
- cpe:2.3:a:google:tensorflow:*:*:*:*:*:*:*:*
- cpe:2.3:a:google:tensorflow:*:*:*:*:*:*:*:*
- cpe:2.3:a:google:tensorflow:*:*:*:*:*:*:*:*
- cpe:2.3:a:google:tensorflow:*:*:*:*:*:*:*:*