CVE-2021-37687
CVSS V2 Low 2.1
CVSS V3 Medium 5.5
Description
TensorFlow is an end-to-end open source platform for machine learning. In affected versions TFLite's [`GatherNd` implementation](https://github.com/tensorflow/tensorflow/blob/149562d49faa709ea80df1d99fc41d005b81082a/tensorflow/lite/kernels/gather_nd.cc#L124) does not support negative indices but there are no checks for this situation. Hence, an attacker can read arbitrary data from the heap by carefully crafting a model with negative values in `indices`. Similar issue exists in [`Gather` implementation](https://github.com/tensorflow/tensorflow/blob/149562d49faa709ea80df1d99fc41d005b81082a/tensorflow/lite/kernels/gather.cc). We have patched the issue in GitHub commits bb6a0383ed553c286f87ca88c207f6774d5c4a8f and eb921122119a6b6e470ee98b89e65d721663179d. 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.
Overview
- CVE ID
- CVE-2021-37687
- Assigner
- security-advisories@github.com
- Vulnerability Status
- Analyzed
- Published Version
- 2021-08-12T23:15:08
- Last Modified Date
- 2021-08-18T21:18:59
Weakness Enumerations
CPE Configuration (Product)
| CPE | Vulnerable | Operator | Version Start | Version End |
|---|---|---|---|---|
| cpe:2.3:a:google:tensorflow:*:*:*:*:*:*:*:* | 1 | OR | 2.3.0 | 2.3.4 |
| cpe:2.3:a:google:tensorflow:*:*:*:*:*:*:*:* | 1 | OR | 2.4.0 | 2.4.3 |
| cpe:2.3:a:google:tensorflow:2.5.0:*:*:*:*:*:*:* | 1 | OR | ||
| cpe:2.3:a:google:tensorflow:2.6.0:rc0:*:*:*:*:*:* | 1 | OR | ||
| cpe:2.3:a:google:tensorflow:2.6.0:rc1:*:*:*:*:*:* | 1 | OR | ||
| cpe:2.3:a:google:tensorflow:2.6.0:rc2:*:*:*:*:*:* | 1 | OR |
CVSS Version 2
- Version
- 2.0
- Vector String
- AV:L/AC:L/Au:N/C:P/I:N/A:N
- Access Vector
- LOCAL
- Access Compatibility
- LOW
- Authentication
- NONE
- Confidentiality Impact
- PARTIAL
- Integrity Impact
- NONE
- Availability Impact
- NONE
- Base Score
- 2.1
- Severity
- LOW
- Exploitability Score
- 3.9
- Impact Score
- 2.9
CVSS Version 3
- Version
- 3.1
- Vector String
- CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
- Attack Vector
- LOCAL
- Attack Compatibility
- LOW
- Privileges Required
- LOW
- User Interaction
- NONE
- Scope
- UNCHANGED
- Confidentiality Impact
- HIGH
- Availability Impact
- NONE
- Base Score
- 5.5
- Base Severity
- MEDIUM
- Exploitability Score
- 1.8
- Impact Score
- 3.6
References
| Reference URL | Reference Tags |
|---|---|
| https://github.com/tensorflow/tensorflow/commit/eb921122119a6b6e470ee98b89e65d721663179d | Third Party Advisory |
| https://github.com/tensorflow/tensorflow/commit/bb6a0383ed553c286f87ca88c207f6774d5c4a8f | Patch Third Party Advisory |
| https://github.com/tensorflow/tensorflow/security/advisories/GHSA-jwf9-w5xm-f437 | Third Party Advisory |
Sources
| Source Name | Source URL |
|---|---|
| NIST | https://nvd.nist.gov/vuln/detail/CVE-2021-37687 |
| MITRE | https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-37687 |
History
| Created | Old Value | New Value | Data Type | Notes |
|---|---|---|---|---|
| 2022-05-10 06:56:43 | Added to TrackCVE | |||
| 2022-12-05 08:10:44 | 2021-08-12T23:15Z | 2021-08-12T23:15:08 | CVE Published Date | updated |
| 2022-12-05 08:10:44 | 2021-08-18T21:18:59 | CVE Modified Date | updated | |
| 2022-12-05 08:10:44 | Analyzed | Vulnerability Status | updated |