Skip to main content
← All vulnerabilities
CVE-2023-53828

Bluetooth: hci_sync: Avoid use-after-free in dbg for hci_add_adv_monitor()

Published
Last modified
published
Not listed in CISA KEV
Fix
Fixed in 6.1.53, 6.4.16, 6.5.3
None on Exploit-DB, Metasploit or GitHub
  • Exploitation: none
  • Automatable: no
  • Technical impact: total

Summary

In the Linux kernel, the following vulnerability has been resolved: Bluetooth: hci_sync: Avoid use-after-free in dbg for hci_add_adv_monitor() KSAN reports use-after-free in hci_add_adv_monitor(). While adding an adv monitor, hci_add_adv_monitor() calls -> msft_add_monitor_pattern() calls -> msft_add_monitor_sync() calls -> msft_le_monitor_advertisement_cb() calls in an error case -> hci_free_adv_monitor() which frees the *moniter. This is referenced by bt_dev_dbg() in hci_add_adv_monitor(). Fix the bt_dev_dbg() by using handle instead of monitor->handle.

Timeline

  1. CVE published
  2. CISA SSVC assessment

    Exploitation: none · Automatable: no · Technical impact: total

  3. Record last updated

Affected versions

  • Linux Linux

    From b747a83690c8f53bc7a3f75899415c699b2c51aa · fixed in 81d8e9f59df63b8358751c1ffed9f1cf5c796909; From b747a83690c8f53bc7a3f75899415c699b2c51aa · fixed in aafda69d4807f5edf3558c9534be9b911774e63a; From b747a83690c8f53bc7a3f75899415c699b2c51aa · fixed in 8d66f7ced51cb924bc90278d6a0a26a52877271a; From b747a83690c8f53bc7a3f75899415c699b2c51aa · fixed in a2bcd2b63271a93a695fabbfbf459c603d956d48

  • Linux Linux

    6.0

  • KernelLinux

    From 6.0.0 · fixed in 6.1.53; From 6.2.0 · fixed in 6.4.16; From 6.5.0 · fixed in 6.5.3

References 4

git.kernel.org