CVE-2023-53305: Bluetooth: L2CAP: Fix use-after-free
Published Sep 16, 2025
·Updated
In the Linux kernel, the following vulnerability has been resolved:
Bluetooth: L2CAP: Fix use-after-free
Fix potential use-after-free in l2caplecommandrej.
Affected Software
9 affected components
Linux Linux kernel
Linux Linux kernel<4.14.324
Linux Linux kernel>=4.15<4.19.293
Linux Linux kernel>=4.20<5.4.255
Linux Linux kernel>=5.5<5.10.192
Linux Linux kernel>=5.11<5.15.128
Linux Linux kernel>=5.16<6.1.47
Linux Linux kernel>=6.2<6.4.12
IBM Cloud Pak for Data System<=11.3.0.2-IF1
Event History
Sep 16, 2025
CVE Published
via MITRE·04:11 PM
Data Sourced
via MITRE·04:11 PM
DescriptionSeverity
Data Sourced
via Red Hat·05:02 PM
DescriptionSeverityAffected Software
Data Sourced
via NVD·05:15 PM
RemedyDescriptionSeverityWeaknessAffected Software
Aug 28, 2026
Data Sourced
via IBM·12:00 AM
DescriptionAffected Software
Frequently Asked Questions
1
What is the severity of CVE-2023-53305?
CVE-2023-53305 is classified as a medium severity vulnerability in the Linux kernel.
2
How do I fix CVE-2023-53305?
To fix CVE-2023-53305, users should update to the latest version of the Linux kernel where the vulnerability has been addressed.
3
What impact does CVE-2023-53305 have on Linux systems?
CVE-2023-53305 can lead to potential use-after-free issues affecting Bluetooth functionalities in Linux systems.
4
What versions of the Linux kernel are affected by CVE-2023-53305?
CVE-2023-53305 affects specific versions of the Linux kernel where the L2CAP functionalities are implemented.
5
Is CVE-2023-53305 a remote exploit vulnerability?
CVE-2023-53305 is not a remote exploit vulnerability, but it may be triggered by local Bluetooth connections.