Linux Kernel up to 5.15.29/5.16.15 Bluetooth hci_core: use after free

Summaryinfo

A vulnerability was found in Linux Kernel up to 5.15.29/5.16.15. It has been declared as problematic. Affected by this vulnerability is the function hci_core: of the component Bluetooth. Such manipulation leads to an unknown weakness. This vulnerability is traded as CVE-2022-48844. There is no exploit available. It is recommended to upgrade the affected component.

Detailsinfo

A vulnerability was found in Linux Kernel up to 5.15.29/5.16.15 and classified as problematic. Affected by this issue is the function hci_core: of the component Bluetooth. Using CWE to declare the problem leads to 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. CVE summarizes:

In the Linux kernel, the following vulnerability has been resolved: Bluetooth: hci_core: Fix leaking sent_cmd skb sent_cmd memory is not freed before freeing hci_dev causing it to leak it contents.

The advisory is available at git.kernel.org. This vulnerability is handled as CVE-2022-48844 since 07/16/2024. Technical details are known, but there is no available exploit. The structure of the vulnerability defines a possible price range of USD $0-$5k at the moment (estimation calculated on 10/11/2024).

The vulnerability scanner Nessus provides a plugin with the ID 208672 (SUSE SLES12 Security Update : kernel (SUSE-SU-2024:3566-1)), which helps to determine the existence of the flaw in a target environment.

Upgrading to version 5.15.30 or 5.16.16 eliminates this vulnerability. Applying the patch 3679ccc09d88/9473d06bd1c8/dd3b1dc3dd05 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 (208672). If you want to get best quality of vulnerability data, you may have to visit VulDB.

Productinfo

Type

• Operating System

Vendor

• Linux

Name

• Kernel

Version

• 5.15.0
• 5.15.1
• 5.15.2
• 5.15.3
• 5.15.4
• 5.15.5
• 5.15.6
• 5.15.7
• 5.15.8
• 5.15.9
• 5.15.10
• 5.15.11
• 5.15.12
• 5.15.13
• 5.15.14
• 5.15.15
• 5.15.16
• 5.15.17
• 5.15.18
• 5.15.19
• 5.15.20
• 5.15.21
• 5.15.22
• 5.15.23
• 5.15.24
• 5.15.25
• 5.15.26
• 5.15.27
• 5.15.28
• 5.15.29
• 5.16.0
• 5.16.1
• 5.16.2
• 5.16.3
• 5.16.4
• 5.16.5
• 5.16.6
• 5.16.7
• 5.16.8
• 5.16.9
• 5.16.10
• 5.16.11
• 5.16.12
• 5.16.13
• 5.16.14
• 5.16.15

License

• open-source

Website

• Vendor: https://www.kernel.org/

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Entryinfo

If you want to get best quality of vulnerability data, you may have to visit VulDB.

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