CVE-2022-48832
In 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…
Does this matter?
Lower severity and a low EPSS score (0.22%). Track it; it rarely justifies an emergency change on its own.
Description
In 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
- 5.5 MEDIUMCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
- EPSS
- 0.22% probability · 12th percentile
- CISA KEV
- Not listed
- Affected
- linux/linux kernel
- Source
- 416baaa9-dc9f-4396-8d5f-8c081fb06d67
References
- https://git.kernel.org/stable/c/310c9ddfdf1f8d3c9834f02175eae79c8b254b6cPatch
- https://git.kernel.org/stable/c/7a82f89de92aac5a244d3735b2bd162c1147620cPatch
- https://git.kernel.org/stable/c/310c9ddfdf1f8d3c9834f02175eae79c8b254b6cPatch
- https://git.kernel.org/stable/c/7a82f89de92aac5a244d3735b2bd162c1147620cPatch
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.