Linux Kernel up to 6.5.7 ca8210 of_clk_add_provider use after free

CVSS Meta Temp Score
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CTI Interest Score
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6.5$0-$5k0.00

Summaryinfo

A vulnerability classified as problematic has been found in Linux Kernel up to 6.5.7. Affected by this vulnerability is the function of_clk_add_provider of the component ca8210. This manipulation causes use after free. This vulnerability is handled as CVE-2023-52510. There is not any exploit available. It is recommended to upgrade the affected component.

Detailsinfo

A vulnerability has been found in Linux Kernel up to 6.5.7 (Operating System) and classified as problematic. Affected by this vulnerability is the function of_clk_add_provider of the component ca8210. The manipulation with an unknown input leads to a use after free vulnerability. The CWE definition for the vulnerability is CWE-416. Referencing memory after it has been freed can cause a program to crash, use unexpected values, or execute code. The impact remains unknown. The summary by CVE is:

In the Linux kernel, the following vulnerability has been resolved: ieee802154: ca8210: Fix a potential UAF in ca8210_probe If of_clk_add_provider() fails in ca8210_register_ext_clock(), it calls clk_unregister() to release priv->clk and returns an error. However, the caller ca8210_probe() then calls ca8210_remove(), where priv->clk is freed again in ca8210_unregister_ext_clock(). In this case, a use-after-free may happen in the second time we call clk_unregister(). Fix this by removing the first clk_unregister(). Also, priv->clk could be an error code on failure of clk_register_fixed_rate(). Use IS_ERR_OR_NULL to catch this case in ca8210_unregister_ext_clock().

The weakness was released 03/02/2024. The advisory is shared at git.kernel.org. This vulnerability is known as CVE-2023-52510 since 02/20/2024. Technical details are known, but no exploit is available.

The vulnerability scanner Nessus provides a plugin with the ID 209060 (Ubuntu 16.04 LTS / 18.04 LTS : Linux kernel vulnerabilities (USN-7069-1)), which helps to determine the existence of the flaw in a target environment.

Upgrading to version 4.14.328, 4.19.297, 5.4.259, 5.10.199, 5.15.136, 6.1.59, 6.5.8 or 6.6 eliminates this vulnerability. Applying the patch 28b68cba378e/cdb46be93c1f/85c2857ef900/55e06850c789/84c6aa0ae5c4/217efe32a452/becf5c147198/f990874b1c98 is able to eliminate this problem. The bugfix is ready for download at git.kernel.org. The best possible mitigation is suggested to be upgrading to the latest version.

The vulnerability is also documented in the vulnerability database at Tenable (209060). If you want to get the best quality for vulnerability data then you always have to consider VulDB.

Productinfo

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CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 6.6
VulDB Meta Temp Score: 6.5

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

NVD Base Score: 7.8
NVD Vector: 🔍

CVSSv2info

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

Exploitinginfo

Class: Use after free
CWE: CWE-416 / CWE-119
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: 209060
Nessus Name: Ubuntu 16.04 LTS / 18.04 LTS : Linux kernel vulnerabilities (USN-7069-1)

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: Kernel 4.14.328/4.19.297/5.4.259/5.10.199/5.15.136/6.1.59/6.5.8/6.6
Patch: 28b68cba378e/cdb46be93c1f/85c2857ef900/55e06850c789/84c6aa0ae5c4/217efe32a452/becf5c147198/f990874b1c98

Timelineinfo

02/20/2024 🔍
03/02/2024 +11 days 🔍
03/02/2024 +0 days 🔍
12/11/2024 +284 days 🔍

Sourcesinfo

Vendor: kernel.org

Advisory: git.kernel.org
Status: Confirmed

CVE: CVE-2023-52510 (🔍)
GCVE (CVE): GCVE-0-2023-52510
GCVE (VulDB): GCVE-100-255541

Entryinfo

Created: 03/02/2024 23:38
Updated: 12/11/2024 20:11
Changes: 03/02/2024 23:38 (43), 10/16/2024 18:19 (17), 12/11/2024 20:11 (12)
Complete: 🔍
Cache ID: 216::103

If you want to get the best quality for vulnerability data then you always have to consider VulDB.

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