CVE-2023-53828
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.
Affected versions
Linux kernel versions
6.0
and later are affected. Fixed in
6.1.53,
6.4.16,
6.5.3,
6.6
and their respective stable series.
References
The following references provide additional information about CVE-2023-53828 including vendor advisories, patch commits, exploit details, and third-party analysis. Links are sourced from the NIST NVD database.
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PatchKernel patch commithttps://git.kernel.org/stable/c/81d8e9f59df63b8358751c1ffed9f1cf5c796909
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PatchKernel patch commithttps://git.kernel.org/stable/c/8d66f7ced51cb924bc90278d6a0a26a52877271a
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PatchKernel patch commithttps://git.kernel.org/stable/c/a2bcd2b63271a93a695fabbfbf459c603d956d48
Frequently asked questions
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What is CVE-2023-53828?
CVE-2023-53828 is a unscored severity Linux kernel vulnerability . It affects Linux kernel versions from 6.0 onward and has been patched in 6.1.53, 6.4.16, 6.5.3 and others. CVE-2023-53828 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.
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Is there a patch available for CVE-2023-53828?
Yes — CVE-2023-53828 has been patched. Fixed versions include 6.1.53, 6.4.16, 6.5.3 and others. If you are running Linux kernel 6.0 or later up to the fix versions, apply the relevant patch for your kernel branch.
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Is CVE-2023-53828 actively exploited?
No — CVE-2023-53828 has not been confirmed as actively exploited. It is not listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.