CVE-2022-49122
MediumIn the Linux kernel, the following vulnerability has been resolved: dm ioctl: prevent potential spectre v1 gadget It appears like cmd could be a Spectre v1 gadget as it's supplied by a user and used as an array index. Prevent the contents of kernel memory from being leaked to userspace via speculative execution by using array_index_nospec.
CVSS 3.1 score
5.5
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Affected versions
Linux kernel versions
2.6.12
and later are affected. Fixed in
4.9.311,
4.14.276,
4.19.238,
5.4.189,
5.10.111,
5.15.34,
5.16.20,
5.17.3,
5.18
and their respective stable series.
References
The following references provide additional information about CVE-2022-49122 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/02cc46f397eb3691c56affbd5073e54f7a82ac32
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PatchKernel patch commithttps://git.kernel.org/stable/c/0320bac5801b31407200227173205d017488f140
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PatchKernel patch commithttps://git.kernel.org/stable/c/44e6cb3ab177faae840bb2c1ebda9a2539876184
Frequently asked questions
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What is CVE-2022-49122?
CVE-2022-49122 is a Medium severity Linux kernel vulnerability with a CVSS score of 5.5 out of 10 . It affects Linux kernel versions from 2.6.12 onward and has been patched in 4.9.311, 4.14.276, 4.19.238 and others. CVE-2022-49122 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-2022-49122?
CVE-2022-49122 has a CVSS score of 5.5 out of 10, rated Medium severity (CVSS 3.1). The vector string is
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H. -
Is there a patch available for CVE-2022-49122?
Yes — CVE-2022-49122 has been patched. Fixed versions include 4.9.311, 4.14.276, 4.19.238 and others. If you are running Linux kernel 2.6.12 or later up to the fix versions, apply the relevant patch for your kernel branch.
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Is CVE-2022-49122 actively exploited?
No — CVE-2022-49122 has not been confirmed as actively exploited. It is not listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.