CVE-2023-54279
In the Linux kernel, the following vulnerability has been resolved: MIPS: fw: Allow firmware to pass a empty env fw_getenv will use env entry to determine style of env, however it is legal for firmware to just pass a empty list. Check if first entry exist before running strchr to avoid null pointer dereference.
Affected versions
Linux kernel versions
3.10
and later are affected. Fixed in
4.14.315,
4.19.283,
5.4.243,
5.10.180,
5.15.111,
6.1.28,
6.2.15,
6.3.2,
6.4
and their respective stable series.
References
The following references provide additional information about CVE-2023-54279 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/0f91290774c798199ba4b8df93de5c3156b5163d
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PatchKernel patch commithttps://git.kernel.org/stable/c/3ef93b7bd9e042db240843f24a80e14da38c6830
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PatchKernel patch commithttps://git.kernel.org/stable/c/47e61cadc7a5f3dffd42d2d6fda81be163f1ab82
Frequently asked questions
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What is CVE-2023-54279?
CVE-2023-54279 is a unscored severity Linux kernel vulnerability . It affects Linux kernel versions from 3.10 onward and has been patched in 4.14.315, 4.19.283, 5.4.243 and others. CVE-2023-54279 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-2023-54279?
Yes — CVE-2023-54279 has been patched. Fixed versions include 4.14.315, 4.19.283, 5.4.243 and others. If you are running Linux kernel 3.10 or later up to the fix versions, apply the relevant patch for your kernel branch.
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Is CVE-2023-54279 actively exploited?
No — CVE-2023-54279 has not been confirmed as actively exploited. It is not listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.