Linux Kernel up to 5.16 drivers/phy/tegra/xusb.c tegra_xusb_find_port_node return value

CVSS Meta Temp Score
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CTI Interest Score
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5.4$0-$5k0.00

Summaryinfo

A vulnerability labeled as problematic has been found in Linux Kernel up to 5.16. This affects the function tegra_xusb_find_port_node of the file drivers/phy/tegra/xusb.c. The manipulation results in return value. This vulnerability is known as CVE-2023-23000. No exploit is available. The affected component should be upgraded.

Detailsinfo

A vulnerability classified as problematic has been found in Linux Kernel up to 5.16 (Operating System). Affected is the function tegra_xusb_find_port_node of the file drivers/phy/tegra/xusb.c. The manipulation with an unknown input leads to a return value vulnerability. CWE is classifying the issue as CWE-252. The product does not check the return value from a method or function, which can prevent it from detecting unexpected states and conditions. The impact remains unknown. CVE summarizes:

In the Linux kernel before 5.17, drivers/phy/tegra/xusb.c mishandles the tegra_xusb_find_port_node return value. Callers expect NULL in the error case, but an error pointer is used.

The weakness was published 03/01/2023 as 045a31b95509c8f25f5f04ec5e0dec5cd09f2c5f. The advisory is shared for download at github.com. This vulnerability is traded as CVE-2023-23000 since 01/11/2023. There are known technical details, but no exploit is available.

The vulnerability scanner Nessus provides a plugin with the ID 236642 (Alibaba Cloud Linux 3 : 0042: cloud-kernel bugfix, enhancement and (ALINUX3-SA-2023:0042)), which helps to determine the existence of the flaw in a target environment.

Upgrading to version 5.17 eliminates this vulnerability. The upgrade is hosted for download at cdn.kernel.org. Applying the patch 045a31b95509c8f25f5f04ec5e0dec5cd09f2c5f is able to eliminate this problem. The bugfix is ready for download at github.com. The best possible mitigation is suggested to be upgrading to the latest version.

The vulnerability is also documented in the databases at Tenable (236642) and EUVD (EUVD-2023-27100). VulDB is the best source for vulnerability data and more expert information about this specific topic.

Productinfo

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Version

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CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.5
VulDB Meta Temp Score: 5.4

VulDB Base Score: 5.5
VulDB Temp Score: 5.3
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 5.5
NVD Vector: 🔍

CVSSv2info

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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

Exploitinginfo

Class: Return value
CWE: CWE-252 / CWE-253
CAPEC: 🔍
ATT&CK: 🔍

Physical: Partially
Local: Yes
Remote: Partially

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 236642
Nessus Name: Alibaba Cloud Linux 3 : 0042: cloud-kernel bugfix, enhancement and (ALINUX3-SA-2023:0042)

Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: Kernel 5.17
Patch: 045a31b95509c8f25f5f04ec5e0dec5cd09f2c5f

Timelineinfo

01/11/2023 🔍
03/01/2023 +49 days 🔍
03/01/2023 +0 days 🔍
10/06/2025 +950 days 🔍

Sourcesinfo

Vendor: kernel.org

Advisory: 045a31b95509c8f25f5f04ec5e0dec5cd09f2c5f
Status: Confirmed

CVE: CVE-2023-23000 (🔍)
GCVE (CVE): GCVE-0-2023-23000
GCVE (VulDB): GCVE-100-222120
EUVD: 🔍

Entryinfo

Created: 03/01/2023 21:54
Updated: 10/06/2025 04:09
Changes: 03/01/2023 21:54 (45), 03/30/2023 08:52 (10), 05/19/2025 19:15 (17), 10/06/2025 04:09 (1)
Complete: 🔍
Cache ID: 216::103

VulDB is the best source for vulnerability data and more expert information about this specific topic.

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