CVE-2020-5215
Severity CVSS v4.0:
Pending analysis
Type:
CWE-20
Input Validation
Publication date:
28/01/2020
Last modified:
05/02/2020
Description
In TensorFlow before 1.15.2 and 2.0.1, converting a string (from Python) to a tf.float16 value results in a segmentation fault in eager mode as the format checks for this use case are only in the graph mode. This issue can lead to denial of service in inference/training where a malicious attacker can send a data point which contains a string instead of a tf.float16 value. Similar effects can be obtained by manipulating saved models and checkpoints whereby replacing a scalar tf.float16 value with a scalar string will trigger this issue due to automatic conversions. This can be easily reproduced by tf.constant("hello", tf.float16), if eager execution is enabled. This issue is patched in TensorFlow 1.15.1 and 2.0.1 with this vulnerability patched. TensorFlow 2.1.0 was released after we fixed the issue, thus it is not affected. Users are encouraged to switch to TensorFlow 1.15.1, 2.0.1 or 2.1.0.
Impact
Base Score 3.x
7.50
Severity 3.x
HIGH
Base Score 2.0
4.30
Severity 2.0
MEDIUM
Vulnerable products and versions
| CPE | From | Up to |
|---|---|---|
| cpe:2.3:a:google:tensorflow:*:*:*:*:*:*:*:* | 1.15.2 (excluding) | |
| cpe:2.3:a:google:tensorflow:*:*:*:*:*:*:*:* | 2.0.0 (including) | 2.0.1 (excluding) |
To consult the complete list of CPE names with products and versions, see this page