Vulnerability Details : CVE-2020-15195
In Tensorflow before versions 1.15.4, 2.0.3, 2.1.2, 2.2.1 and 2.3.1, the implementation of `SparseFillEmptyRowsGrad` uses a double indexing pattern. It is possible for `reverse_index_map(i)` to be an index outside of bounds of `grad_values`, thus resulting in a heap buffer overflow. The issue is patched in commit 390611e0d45c5793c7066110af37c8514e6a6c54, and is released in TensorFlow versions 1.15.4, 2.0.3, 2.1.2, 2.2.1, or 2.3.1.
Vulnerability category: OverflowMemory Corruption
Products affected by CVE-2020-15195
- cpe:2.3:a:google:tensorflow:*:*:*:*:-:*:*:*
- cpe:2.3:a:google:tensorflow:*:*:*:*:-:*:*:*
- cpe:2.3:a:google:tensorflow:*:*:*:*:-:*:*:*
- cpe:2.3:a:google:tensorflow:*:*:*:*:-:*:*:*
- cpe:2.3:a:google:tensorflow:*:*:*:*:-:*:*:*
- cpe:2.3:o:opensuse:leap:15.2:*:*:*:*:*:*:*
Exploit prediction scoring system (EPSS) score for CVE-2020-15195
0.46%
Probability of exploitation activity in the next 30 days
EPSS Score History
~ 74 %
Percentile, the proportion of vulnerabilities that are scored at or less
CVSS scores for CVE-2020-15195
| Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source | First Seen |
|---|---|---|---|---|---|---|
|
6.5
|
MEDIUM | AV:N/AC:L/Au:S/C:P/I:P/A:P |
8.0
|
6.4
|
NIST | |
|
8.8
|
HIGH | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H |
2.8
|
5.9
|
NIST | |
|
8.5
|
HIGH | CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:H |
1.8
|
6.0
|
GitHub, Inc. |
CWE ids for CVE-2020-15195
-
The product performs operations on a memory buffer, but it reads from or writes to a memory location outside the buffer's intended boundary. This may result in read or write operations on unexpected memory locations that could be linked to other variables, data structures, or internal program data.Assigned by: security-advisories@github.com (Secondary)
-
A heap overflow condition is a buffer overflow, where the buffer that can be overwritten is allocated in the heap portion of memory, generally meaning that the buffer was allocated using a routine such as malloc().Assigned by: security-advisories@github.com (Secondary)
-
The product writes data past the end, or before the beginning, of the intended buffer.Assigned by: nvd@nist.gov (Primary)
References for CVE-2020-15195
-
https://github.com/tensorflow/tensorflow/commit/390611e0d45c5793c7066110af37c8514e6a6c54
Fix heap buffer overflow in `tf.raw_ops.SparseFillEmptyRowsGrad`. · tensorflow/tensorflow@390611e · GitHubPatch;Third Party Advisory
-
https://github.com/tensorflow/tensorflow/security/advisories/GHSA-63xm-rx5p-xvqr
Heap buffer overflow in SparseFillEmptyRowsGrad · Advisory · tensorflow/tensorflow · GitHubExploit;Third Party Advisory
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https://github.com/tensorflow/tensorflow/releases/tag/v2.3.1
Release TensorFlow 2.3.1 · tensorflow/tensorflow · GitHubThird Party Advisory
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http://lists.opensuse.org/opensuse-security-announce/2020-10/msg00065.html
[security-announce] openSUSE-SU-2020:1766-1: moderate: Security update fMailing List;Third Party Advisory
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