CVE-2022-49180
MediumIn the Linux kernel, the following vulnerability has been resolved: LSM: general protection fault in legacy_parse_param The usual LSM hook "bail on fail" scheme doesn't work for cases where a security module may return an error code indicating that it does not recognize an input. In this particular case Smack sees a mount option that it recognizes, and returns 0. A call to a BPF hook follows, which returns -ENOPARAM, which confuses the caller because Smack has processed its data. The SELinux hook incorrectly returns 1 on success. There was a time when this was correct, however the current expectation is that it return 0 on success. This is repaired.
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
5.1
and later are affected. Fixed in
5.4.189,
5.10.110,
5.15.33,
5.16.19,
5.17.2,
5.18
and their respective stable series.
References
The following references provide additional information about CVE-2022-49180 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/00fc07fa0b4a004711b6e1a944f0d2e46f7093b7
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PatchKernel patch commithttps://git.kernel.org/stable/c/2784604c8c6fc523248f8f80a421c313a9d790b7
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PatchKernel patch commithttps://git.kernel.org/stable/c/cadae7c5e477aaafcba819b8e4a3d1c1a1503b62
Frequently asked questions
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What is CVE-2022-49180?
CVE-2022-49180 is a Medium severity Linux kernel vulnerability with a CVSS score of 5.5 out of 10 . It affects Linux kernel versions from 5.1 onward and has been patched in 5.4.189, 5.10.110, 5.15.33 and others. CVE-2022-49180 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-2022-49180?
CVE-2022-49180 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-2022-49180?
Yes — CVE-2022-49180 has been patched. Fixed versions include 5.4.189, 5.10.110, 5.15.33 and others. If you are running Linux kernel 5.1 or later up to the fix versions, apply the relevant patch for your kernel branch.
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Is CVE-2022-49180 actively exploited?
No — CVE-2022-49180 has not been confirmed as actively exploited. It is not listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.