Vulnerability in Linux

CVE-2024-42132

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.

EPSS: 0.003 (21.5th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 7.6 (High). Vector: CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:H.

Affected products

  • Linux — versions f7e83f2278f06b577e3c92ea2f4e8e8c6fc72a8f, 6.6.2, 84cb0143fb8a03bf941c7aaedd56c938c99dafad
  • Linux Linux_kernel — versions 6.10

Weakness classification (CWE)

References

Frequently asked questions

What is CVE-2024-42132?
CVE-2024-42132 is a high-severity vulnerability in Linux, classified under Release of Invalid Pointer or Reference. CVSS score: 7.6/10. Published 2024-07-30.
How severe is CVE-2024-42132?
High severity. CVSS v3 base score is 7.6 out of 10.