CVE-2024-42132
HIGH severity · CVSS 7.6 · CWE-763
7.6CVSS HIGH
Summary
In the Linux kernel, the following vulnerability has been resolved: bluetooth/hci: disallow setting handle bigger than HCI_CONN_HANDLE_MAX Syzbot hit warning in hci_conn_del() caused by freeing handle that was not allocated using ida allocator. This is caused by handle bigger than HCI_CONN_HANDLE_MAX passed by hci_le_big_sync_established_evt(), which makes code think it's unset connection. Add same check for handle upper bound as in hci_conn_set_handle() to prevent warning.
Impact & exploitability
Attack vectorAdjacent
Attack complexityLow
Privileges requiredNone
User interactionNone
Confidentiality impactLow
Integrity impactLow
Availability impactHigh
Exploit probability (EPSS)0%
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:H
Affected products we track (1)
Recommendation
Apply the vendor fix promptly. Open any affected product above for its exact safe version.
Official patch: https://git.kernel.org/stable/c/1cc18c2ab2e8c54c355ea7c0423a636e415a0c23 ↗
Additional information
- NVD record
- https://git.kernel.org/stable/c/1cc18c2ab2e8c54c355ea7c0423a636e415a0c23Patch
- https://git.kernel.org/stable/c/4970e48f83dbd21d2a6a7cdaaafc2a71f7f45dc4Patch
- https://git.kernel.org/stable/c/d311036696fed778301d08a71a4bef737b86d8c5Patch
- https://git.kernel.org/stable/c/2ae8d7742a09c275872e670c53337b3dcedaa11c