CVE-2022-50087
HighIn the Linux kernel, the following vulnerability has been resolved: firmware: arm_scpi: Ensure scpi_info is not assigned if the probe fails When scpi probe fails, at any point, we need to ensure that the scpi_info is not set and will remain NULL until the probe succeeds. If it is not taken care, then it could result use-after-free as the value is exported via get_scpi_ops() and could refer to a memory allocated via devm_kzalloc() but freed when the probe fails.
CVSS 3.1 score
7.8
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Weakness type
CWE-416CVE-2022-50087 is a Use After Free vulnerability
What is Use After Free?
The product references memory after it has been freed, which may cause it to crash, use unexpected values, or execute code. Learn more on MITRE CWE
Affected versions
Linux kernel versions
4.4
and later are affected. Fixed in
4.19.256,
5.4.211,
5.10.137,
5.15.61,
5.18.18,
5.19.2,
6.0
and their respective stable series.
References
The following references provide additional information about CVE-2022-50087 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/08272646cd7c310642c39b7f54348fddd7987643
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PatchKernel patch commithttps://git.kernel.org/stable/c/0c29e149b6bb498778ed8a1c9597b51acfba7856
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PatchKernel patch commithttps://git.kernel.org/stable/c/18048cba444a7c41dbf42c180d6b46606fc24c51
Frequently asked questions
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What is CVE-2022-50087?
CVE-2022-50087 is a High severity Linux kernel vulnerability with a CVSS score of 7.8 out of 10 , classified as an Use After Free flaw (CWE-416) . It affects Linux kernel versions from 4.4 onward and has been patched in 4.19.256, 5.4.211, 5.10.137 and others. CVE-2022-50087 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.
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What is the CVSS score for CVE-2022-50087?
CVE-2022-50087 has a CVSS score of 7.8 out of 10, rated High severity (CVSS 3.1). The vector string is
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H. -
Is there a patch available for CVE-2022-50087?
Yes — CVE-2022-50087 has been patched. Fixed versions include 4.19.256, 5.4.211, 5.10.137 and others. If you are running Linux kernel 4.4 or later up to the fix versions, apply the relevant patch for your kernel branch.
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Is CVE-2022-50087 actively exploited?
No — CVE-2022-50087 has not been confirmed as actively exploited. It is not listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.
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What is Use After Free (CWE-416)?
The product references memory after it has been freed, which may cause it to crash, use unexpected values, or execute code. View CWE-416 on MITRE CWE →