CVE-2023-53374
BaseFortify
Publication date: 2025-09-18
Last updated on: 2025-12-12
Assigner: kernel.org
Description
Description
CVSS Scores
EPSS Scores
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Meta Information
Affected Vendors & Products
| Vendor | Product | Version / Range |
|---|---|---|
| linux | linux_kernel | From 6.3.8 (inc) to 6.4 (exc) |
| linux | linux_kernel | From 6.4.1 (inc) to 6.4.16 (exc) |
| linux | linux_kernel | From 6.5 (inc) to 6.5.3 (exc) |
| linux | linux_kernel | 6.4 |
| linux | linux_kernel | 6.4 |
| linux | linux_kernel | 6.4 |
| linux | linux_kernel | 6.4 |
| linux | linux_kernel | 6.4 |
Helpful Resources
Exploitability
| CWE ID | Description |
|---|---|
| CWE-416 | The product reuses or references memory after it has been freed. At some point afterward, the memory may be allocated again and saved in another pointer, while the original pointer references a location somewhere within the new allocation. Any operations using the original pointer are no longer valid because the memory "belongs" to the code that operates on the new pointer. |
Attack-Flow Graph
AI Powered Q&A
Can you explain this vulnerability to me?
This vulnerability in the Linux kernel's Bluetooth subsystem involves improper handling of SCO and ISO connections when the parent ACL connection is deleted prematurely. Specifically, failing to call certain confirmation functions before deleting a connection referenced by a socket can lead to a use-after-free condition. The fix involves using hci_conn_failed to properly clean up these connections to prevent this issue.
How can this vulnerability impact me? :
The vulnerability can lead to use-after-free conditions in the Bluetooth connection handling code, which may cause system instability, crashes, or potentially allow an attacker to execute arbitrary code or cause denial of service on affected systems.