CVE-2023-54309
In the Linux kernel, the following vulnerability has been resolved: tpm: tpm_vtpm_proxy: fix a race condition in /dev/vtpmx creation /dev/vtpmx is made visible before 'workqueue' is initialized, which can lead to a memory corruption in the worst case scenario. Address this by initializing 'workqueue' as the very first step of the driver initialization.
Affected versions
Linux kernel versions
4.8
and later are affected. Fixed in
4.14.322,
4.19.291,
5.4.251,
5.10.188,
5.15.121,
6.1.40,
6.4.5,
6.5
and their respective stable series.
References
The following references provide additional information about CVE-2023-54309 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/04e8697d26613ccea760cf57eb20a5a27f788c0f
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PatchKernel patch commithttps://git.kernel.org/stable/c/092db954e2c3c5ba6c0ce990c7da72cf8f3b9c51
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PatchKernel patch commithttps://git.kernel.org/stable/c/509d21f1c4bb9d35d397fca3226165b156a7639f
Frequently asked questions
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What is CVE-2023-54309?
CVE-2023-54309 is a unscored severity Linux kernel vulnerability . It affects Linux kernel versions from 4.8 onward and has been patched in 4.14.322, 4.19.291, 5.4.251 and others. CVE-2023-54309 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-2023-54309?
Yes — CVE-2023-54309 has been patched. Fixed versions include 4.14.322, 4.19.291, 5.4.251 and others. If you are running Linux kernel 4.8 or later up to the fix versions, apply the relevant patch for your kernel branch.
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Is CVE-2023-54309 actively exploited?
No — CVE-2023-54309 has not been confirmed as actively exploited. It is not listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.