High severity · published Sep 25, 2020
CVE-2020-15193
In Tensorflow before versions 2.2.1 and 2.3.1, the implementation of `dlpack.to_dlpack` can be made to use uninitialized memory resulting in further memory corruption
7.1
CVSS
0.8%
EPSS
No
On KEV
Description
In Tensorflow before versions 2.2.1 and 2.3.1, the implementation of `dlpack.to_dlpack` can be made to use uninitialized memory resulting in further memory corruption. This is because the pybind11 glue code assumes that the argument is a tensor. However, there is nothing stopping users from passing in a Python object instead of a tensor. The uninitialized memory address is due to a `reinterpret_cast` Since the `PyObject` is a Python object, not a TensorFlow Tensor, the cast to `EagerTensor` fails. The issue is patched in commit 22e07fb204386768e5bcbea563641ea11f96ceb8 and is released in TensorFlow versions 2.2.1, or 2.3.1.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:L
Attack vector
Network
Complexity
Low
Privileges
Low
User interaction
None
Confidentiality
None
Integrity
High
Availability
Low
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.8% · higher than 57% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
LE
Leap · Opensuse
15.2 · source: NVD
TE
Tensorflow · Google
2.2.0; 2.3.0 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2020-15193
CVE.org
https://www.cve.org/CVERecord?id=CVE-2020-15193
Mailing List
http://lists.opensuse.org/opensuse-security-announce/2020-10/msg00065.html
Patch
https://github.com/tensorflow/tensorflow/commit/22e07fb204386768e5bcbea563641ea11f96ceb8
Third Party Advisory
https://github.com/tensorflow/tensorflow/releases/tag/v2.3.1
Exploit
https://github.com/tensorflow/tensorflow/security/advisories/GHSA-rjjg-hgv6-h69v
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