CVE-2023-52448

Severity CVSS v4.0:

Pending analysis

Type:

CWE-476 NULL Pointer Dereference

Publication date:

22/02/2024

Last modified:

04/11/2024

Description

In the Linux kernel, the following vulnerability has been resolved: gfs2: Fix kernel NULL pointer dereference in gfs2_rgrp_dump Syzkaller has reported a NULL pointer dereference when accessing rgd->rd_rgl in gfs2_rgrp_dump(). This can happen when creating rgd->rd_gl fails in read_rindex_entry(). Add a NULL pointer check in gfs2_rgrp_dump() to prevent that.

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::::::::	4.20 (including)	5.4.268 (excluding)
cpe:2.3:o:linux:linux_kernel::::::::	5.5.0 (including)	5.10.209 (excluding)
cpe:2.3:o:linux:linux_kernel::::::::	5.11.0 (including)	5.15.148 (excluding)
cpe:2.3:o:linux:linux_kernel::::::::	5.16.0 (including)	6.1.75 (excluding)
cpe:2.3:o:linux:linux_kernel::::::::	6.2.0 (including)	6.6.14 (excluding)
cpe:2.3:o:linux:linux_kernel::::::::	6.7.0 (including)	6.7.2 (excluding)

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

CVE-2023-52448

Description

Impact

Vulnerable products and versions

References to Advisories, Solutions, and Tools