#VU86613 Buffer overflow in TensorFlow - CVE-2022-41894

Vulnerability identifier: #VU86613

Vulnerability risk: High

CVSSv4.0: 7.2 [CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Amber]

CVE-ID: CVE-2022-41894

CWE-ID: CWE-120

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
TensorFlow
Server applications / Other server solutions

Vendor: TensorFlow

Description

The vulnerability allows a remote attacker to execute arbitrary code on the target system.

The vulnerability exists due to reference kernel of the `CONV_3D_TRANSPOSE` TensorFlow Lite operator wrongly increments the data_ptr when adding the bias to the result. A remote unauthenticated attacker can craft a model with a specific number of input channels to write specific values through the bias of the layer outside the bounds of the buffer

Mitigation
Install updates from vendor's website.

Vulnerable software versions

TensorFlow: 2.8.4, 2.9.3, 2.10.1

---

External links
https://github.com/tensorflow/tensorflow/commit/72c0bdcb25305b0b36842d746cc61d72658d2941
https://github.com/tensorflow/tensorflow/blob/091e63f0ea33def7ecad661a5ac01dcafbafa90b/tensorflow/lite/kernels/internal/reference/conv3d_transpose.h#L121
https://github.com/tensorflow/tensorflow/security/advisories/GHSA-h6q3-vv32-2cq5

---

Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.