CVE-2023-54214
In the Linux kernel, the following vulnerability has been resolved: Bluetooth: L2CAP: Fix potential user-after-free This fixes all instances of which requires to allocate a buffer calling alloc_skb which may release the chan lock and reacquire later which makes it possible that the chan is disconnected in the meantime.
Affected versions
Linux kernel versions
3.5
and later are affected. Fixed in
4.14.308,
4.19.276,
5.4.235,
5.10.173,
5.15.99,
6.1.16,
6.2.3,
6.3
and their respective stable series.
References
The following references provide additional information about CVE-2023-54214 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/31a288a4df7f6a28e65da22a4ab2add4a963738e
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PatchKernel patch commithttps://git.kernel.org/stable/c/60aaccf16d1e099c16bebfb96428ae762cb528f7
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PatchKernel patch commithttps://git.kernel.org/stable/c/64e28ecf44e46de9f01915a4146706a21c3469d2
Frequently asked questions
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What is CVE-2023-54214?
CVE-2023-54214 is a unscored severity Linux kernel vulnerability . It affects Linux kernel versions from 3.5 onward and has been patched in 4.14.308, 4.19.276, 5.4.235 and others. CVE-2023-54214 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-2023-54214?
Yes — CVE-2023-54214 has been patched. Fixed versions include 4.14.308, 4.19.276, 5.4.235 and others. If you are running Linux kernel 3.5 or later up to the fix versions, apply the relevant patch for your kernel branch.
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Is CVE-2023-54214 actively exploited?
No — CVE-2023-54214 has not been confirmed as actively exploited. It is not listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.