CVE-2022-48832
MediumIn the Linux kernel, the following vulnerability has been resolved: audit: don't deref the syscall args when checking the openat2 open_how::flags As reported by Jeff, dereferencing the openat2 syscall argument in audit_match_perm() to obtain the open_how::flags can result in an oops/page-fault. This patch fixes this by using the open_how struct that we store in the audit_context with audit_openat2_how(). Independent of this patch, Richard Guy Briggs posted a similar patch to the audit mailing list roughly 40 minutes after this patch was posted.
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
References
The following references provide additional information about CVE-2022-48832 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/310c9ddfdf1f8d3c9834f02175eae79c8b254b6c
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PatchKernel patch commithttps://git.kernel.org/stable/c/7a82f89de92aac5a244d3735b2bd162c1147620c
Frequently asked questions
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What is CVE-2022-48832?
CVE-2022-48832 is a Medium severity Linux kernel vulnerability with a CVSS score of 5.5 out of 10 . CVE-2022-48832 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-2022-48832?
CVE-2022-48832 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-2022-48832?
No patch is currently available for CVE-2022-48832. Monitor the NIST NVD and your Linux distribution's security advisories for updates.
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Is CVE-2022-48832 actively exploited?
No — CVE-2022-48832 has not been confirmed as actively exploited. It is not listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.