CVE-2020-15201
Heap buffer overflow in Tensorflow
Description
In Tensorflow before version 2.3.1, the `RaggedCountSparseOutput` implementation does not validate that the input arguments form a valid ragged tensor. In particular, there is no validation that the values in the `splits` tensor generate a valid partitioning of the `values` tensor. Hence, the code is prone to heap buffer overflow. If `split_values` does not end with a value at least `num_values` then the `while` loop condition will trigger a read outside of the bounds of `split_values` once `batch_idx` grows too large. The issue is patched in commit 3cbb917b4714766030b28eba9fb41bb97ce9ee02 and is released in TensorFlow version 2.3.1.
How to fix CVE-2020-15201
To remediate CVE-2020-15201, upgrade the affected package to a fixed version below.
- —upgrade to 2.3.1 or later
- —upgrade to 2.3.1 or later
- —upgrade to 3cbb917b4714766030b28eba9fb41bb97ce9ee02 or later
- —upgrade to 3cbb917b4714766030b28eba9fb41bb97ce9ee02 or later
- —upgrade to 2.3.1 or later
- —upgrade to 3cbb917b4714766030b28eba9fb41bb97ce9ee02 or later
- —upgrade to 2.3.1 or later
Is CVE-2020-15201 being exploited?
Low — EPSS is 0.2%, meaning exploitation activity has not been observed at scale.
Affected packages (7)
- >= 2.3.0, < 2.3.1
- >= 2.3.0, < 2.3.1
- from 0, < 3cbb917b4714766030b28eba9fb41bb97ce9ee02 | from 0, < 2.3.1
- from 0, < 3cbb917b4714766030b28eba9fb41bb97ce9ee02 | from 0, < 2.3.1
- >= 2.3.0, < 2.3.1
- from 0, < 3cbb917b4714766030b28eba9fb41bb97ce9ee02 | from 0, < 2.3.1
- >= 2.3.0, < 2.3.1
CVSS scores
| Source | Version | Severity | Vector |
|---|---|---|---|
| osv | CVSS 4.0 | — | CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N |
| osv | CVSS 3.1 | MEDIUM4.8 | CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:N |