What’s Vulnerable › Vulnerabilities

CVE-2024-42133: Bluetooth: Ignore too large handle values in BIG

• Severity: medium (CVSS 5.5 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.3% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2024-07-30 · updated 2026-08-04

Description

In the Linux kernel, the following vulnerability has been resolved: Bluetooth: Ignore too large handle values in BIG hci_le_big_sync_established_evt is necessary to filter out cases where the handle value is belonging to ida id range, otherwise ida will be erroneously released in hci_conn_cleanup.

Affected products

• Linux kernel: from 6.5.12 before 6.6; from 6.6.2 before 6.6.39; from 6.7 before 6.9.9; 6.10-rc1, 6.10-rc2, 6.10-rc3, 6.10-rc4, 6.10-rc5, 6.10-rc6 — fixed in 6.6, 6.6.39, 6.9.9

How to fix

Upgrade to a fixed version: Linux kernel 6.6, 6.6.39, 6.9.9. Check the vendor advisory for mitigations.

References

• https://git.kernel.org/stable/c/015d79c96d62cd8a4a359fcf5be40d58088c936b
• https://git.kernel.org/stable/c/38263088b845abeeeb98dda5b87c0de3063b6dbb
• https://git.kernel.org/stable/c/a06a8cc80fa203fde828a8429583f7e4fe27eca4
• https://git.kernel.org/stable/c/dad0003ccc68457baf005a6ed75b4d321463fe3d
• https://git.kernel.org/stable/c/015d79c96d62cd8a4a359fcf5be40d58088c936b
• https://git.kernel.org/stable/c/38263088b845abeeeb98dda5b87c0de3063b6dbb
• https://git.kernel.org/stable/c/dad0003ccc68457baf005a6ed75b4d321463fe3d

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