Linux Kernel Bluetooth l1oip_core.c del_timer use after free
Summary
A vulnerability labeled as critical has been found in Linux Kernel. This impacts the function del_timer of the file drivers/isdn/mISDN/l1oip_core.c of the component Bluetooth. Such manipulation leads to use after free.
This vulnerability is listed as CVE-2022-3565. There is no available exploit.
Applying a patch is advised to resolve this issue.
Details
A vulnerability, which was classified as critical, has been found in Linux Kernel (Operating System) (the affected version unknown). Affected by this issue is the function del_timer of the file drivers/isdn/mISDN/l1oip_core.c of the component Bluetooth. The manipulation with an unknown input leads to a use after free vulnerability. 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. Impacted is confidentiality, integrity, and availability.
The weakness was presented 10/17/2022. The advisory is shared for download at git.kernel.org. This vulnerability is handled as CVE-2022-3565. There are known technical details, but no exploit is available.
The vulnerability scanner Nessus provides a plugin with the ID 236648 (Alibaba Cloud Linux 3 : 0002: cloud-kernel bugfix, enhancement and (ALINUX3-SA-2023:0002)), which helps to determine the existence of the flaw in a target environment.
Applying a patch is able to eliminate this problem. The bugfix is ready for download at git.kernel.org.
The vulnerability is also documented in the vulnerability database at Tenable (236648). VulDB is the best source for vulnerability data and more expert information about this specific topic.
Product
Type
Vendor
Name
License
Website
- Vendor: https://www.kernel.org/
CPE 2.3
CPE 2.2
CVSSv4
VulDB Vector: 🔍VulDB Reliability: 🔍
CVSSv3
VulDB Meta Base Score: 4.6VulDB Meta Temp Score: 4.4
VulDB Base Score: 4.6
VulDB Temp Score: 4.4
VulDB Vector: 🔍
VulDB Reliability: 🔍
CVSSv2
| AV | AC | Au | C | I | A |
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍
Exploiting
Class: Use after freeCWE: CWE-416 / CWE-119
CAPEC: 🔍
ATT&CK: 🔍
Physical: No
Local: No
Remote: Partially
Availability: 🔍
Status: Not defined
EPSS Score: 🔍
EPSS Percentile: 🔍
Price Prediction: 🔍
Current Price Estimation: 🔍
| 0-Day | Unlock | Unlock | Unlock | Unlock |
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Nessus ID: 236648
Nessus Name: Alibaba Cloud Linux 3 : 0002: cloud-kernel bugfix, enhancement and (ALINUX3-SA-2023:0002)
Threat Intelligence
Interest: 🔍Active Actors: 🔍
Active APT Groups: 🔍
Countermeasures
Recommended: PatchStatus: 🔍
0-Day Time: 🔍
Patch: git.kernel.org
Timeline
10/17/2022 🔍10/17/2022 🔍
10/17/2022 🔍
05/18/2025 🔍
Sources
Vendor: kernel.orgAdvisory: git.kernel.org
Status: Confirmed
CVE: CVE-2022-3565 (🔍)
GCVE (CVE): GCVE-0-2022-3565
GCVE (VulDB): GCVE-100-211088
Entry
Created: 10/17/2022 19:47Updated: 05/18/2025 21:54
Changes: 10/17/2022 19:47 (41), 11/09/2022 23:40 (2), 05/18/2025 21:54 (16)
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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