CVE-2023-54214
Unknown Unknown - Not Provided
Use-After-Free Vulnerability in Linux Kernel Bluetooth L2CAP

Publication date: 2025-12-30

Last updated on: 2025-12-30

Assigner: kernel.org

Description
In the Linux kernel, the following vulnerability has been resolved: Bluetooth: L2CAP: Fix potential user-after-free This fixes all instances of which requires to allocate a buffer calling alloc_skb which may release the chan lock and reacquire later which makes it possible that the chan is disconnected in the meantime.
CVSS Scores
EPSS Scores
Probability:
Percentile:
Meta Information
Published
2025-12-30
Last Modified
2025-12-30
Generated
2026-05-07
AI Q&A
2025-12-30
EPSS Evaluated
2026-05-05
NVD
CVE-2023-54214
EUVD
EUVD-2023-60427
Affected Vendors & Products
Showing 1 associated CPE
Vendor Product Version / Range
linux linux_kernel *
Helpful Resources
Exploitability
CWE
CWE Icon
KEV
KEV Icon
CWE ID Description
CWE-UNKNOWN
Attack-Flow Graph
AI Powered Q&A
Can you explain this vulnerability to me?

This vulnerability in the Linux kernel's Bluetooth L2CAP component involves a potential user-after-free issue. It occurs because the code allocates a buffer using alloc_skb, which may release and later reacquire a channel lock. During this time, the channel could be disconnected, leading to a use of memory that has already been freed.


How can this vulnerability impact me? :

This vulnerability can lead to use-after-free conditions, which may cause system instability, crashes, or potentially allow an attacker to execute arbitrary code or cause denial of service via the Bluetooth subsystem.


Ask Our AI Assistant
Need more information? Ask your question to get an AI reply (Powered by our expertise)
0/70
EPSS Chart