Instituto Nacional de ciberseguridad. Sección Incibe
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CVE-2022-48832

Severity CVSS v4.0:
Pending analysis
Type:
Unavailable / Other
Publication date:
16/07/2024
Last modified:
07/10/2025

Description

In the Linux kernel, the following vulnerability has been resolved:<br /> <br /> audit: don&amp;#39;t deref the syscall args when checking the openat2 open_how::flags<br /> <br /> As reported by Jeff, dereferencing the openat2 syscall argument in<br /> audit_match_perm() to obtain the open_how::flags can result in an<br /> oops/page-fault. This patch fixes this by using the open_how struct<br /> that we store in the audit_context with audit_openat2_how().<br /> <br /> Independent of this patch, Richard Guy Briggs posted a similar patch<br /> to the audit mailing list roughly 40 minutes after this patch was<br /> posted.

Impact

Vector 3.x
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H CVSS v3.1 Severity and Metrics:

Base Score: 5.50 MEDIUM
Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Attack Vector (AV): Local
Attack Complexity (AC): Low
Privileges Required (PR): Low
User Interaction (UI): None
Scope (S): Unchanged
Confidentiality (C): None
Integrity (I): None
Availability (A): High

Base Score 3.x
5.50
Severity 3.x
MEDIUM

Vulnerable products and versions

CPE From Up to
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* 5.16 (including) 5.16.10 (excluding)
cpe:2.3:o:linux:linux_kernel:5.17:rc1:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:5.17:rc2:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:5.17:rc3:*:*:*:*:*:*

To consult the complete list of CPE names with products and versions, see this page


References to Advisories, Solutions, and Tools