CVE-2023-54046
In the Linux kernel, the following vulnerability has been resolved: crypto: essiv - Handle EBUSY correctly As it is essiv only handles the special return value of EINPROGERSS, which means that in all other cases it will free data related to the request. However, as the caller of essiv may specify MAY_BACKLOG, we also need to expect EBUSY and treat it in the same way. Otherwise backlogged requests will trigger a use-after-free.
Affected versions
Linux kernel versions
5.4
and later are affected. Fixed in
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-2023-54046 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/69c67d451fc19d88e54f7d97e8e7c093e08357e1
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PatchKernel patch commithttps://git.kernel.org/stable/c/796e02cca30a67322161f0745e5ce994bbe75605
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PatchKernel patch commithttps://git.kernel.org/stable/c/840a1d3b77c1b062bd62b4733969a5b1efc274ce
Frequently asked questions
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What is CVE-2023-54046?
CVE-2023-54046 is a unscored severity Linux kernel vulnerability . It affects Linux kernel versions from 5.4 onward and has been patched in 5.4.235, 5.10.173, 5.15.99 and others. CVE-2023-54046 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-2023-54046?
Yes — CVE-2023-54046 has been patched. Fixed versions include 5.4.235, 5.10.173, 5.15.99 and others. If you are running Linux kernel 5.4 or later up to the fix versions, apply the relevant patch for your kernel branch.
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Is CVE-2023-54046 actively exploited?
No — CVE-2023-54046 has not been confirmed as actively exploited. It is not listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.