#VU83224 Out-of-bounds read in TensorFlow - CVE-2022-23592

Vulnerability identifier: #VU83224

Vulnerability risk: Low

CVSSv4.0: 2.4 [CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:H/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear]

CVE-ID: CVE-2022-23592

CWE-ID: CWE-125

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
TensorFlow
Server applications / Other server solutions

Vendor: TensorFlow

Description

The vulnerability allows a remote user to gain access to potentially sensitive information.

The vulnerability exists due to heap out-of-bounds read as the bounds checking is done in a `DCHECK` (which is a no-op during production). A remote user can control the `input_idx` variable such that `ix` would be larger than the number of values in `node_t.args` and read contents of memory on the system.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

TensorFlow: 2.7.0 - 2.7.4

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External links
https://github.com/tensorflow/tensorflow/blob/274df9b02330b790aa8de1cee164b70f72b9b244/tensorflow/core/graph/graph.cc#L223-L229
https://github.com/tensorflow/tensorflow/commit/c99d98cd189839dcf51aee94e7437b54b31f8abd
https://github.com/tensorflow/tensorflow/security/advisories/GHSA-vq36-27g6-p492

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Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote authenticated user via the Internet.

Is there known malware, which exploits this vulnerability?

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