What is CVE-2023-52448?

CVE-2023-52448 is a Medium severity Linux kernel vulnerability with a CVSS score of 5.5 out of 10, classified as a NULL Pointer Dereference flaw (CWE-476), affecting Linux kernel versions from 4.20 onward and patched in 5.4.268, 5.10.209, 5.15.148 and others. CVE-2023-52448 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

What is the CVSS score for CVE-2023-52448?

CVE-2023-52448 has a CVSS score of 5.5 out of 10, rated Medium severity. 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-2023-52448?

Yes, CVE-2023-52448 has been patched. Fixed versions include 5.4.268, 5.10.209, 5.15.148 and others. If you are running Linux kernel 4.20 or later up to the fix versions, apply the relevant patch for your kernel branch.

Is CVE-2023-52448 actively exploited?

CVE-2023-52448 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

What is NULL Pointer Dereference (CWE-476)?

The product dereferences a pointer that it expects to be valid but is NULL, typically causing a crash. See MITRE CWE for full details: https://cwe.mitre.org/data/definitions/476.html

CVE-2023-52448

Medium

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.

Package Linux Kernel

Published 2024-02-22

Last modified 2024-11-21

CVSS version 3.1

Patch available

Yes

CVSS 3.1 score

5.5

out of 10

Medium

Attack Vector

Local

Attack Complexity

Low

Privileges Required

Low

User Interaction

None

Scope

Unchanged

Confidentiality

Low

Integrity

None

Availability

High

Vector string

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Weakness type

CWE-476

CVE-2023-52448 is a NULL Pointer Dereference vulnerability

What is NULL Pointer Dereference?

The product dereferences a pointer that it expects to be valid but is NULL, typically causing a crash. Learn more on MITRE CWE

Affected versions

Linux kernel versions 4.20 and later are affected. Fixed in 5.4.268, 5.10.209, 5.15.148, 6.1.75, 6.6.14, 6.7.2, 6.8 and their respective stable series.

Affected from

≥ 4.20

Fixed in

✓ 5.4.268 5.4.x ✓ 5.10.209 5.10.x ✓ 5.15.148 5.15.x ✓ 6.1.75 6.1.x ✓ 6.6.14 6.6.x ✓ 6.7.2 6.7.x ✓ 6.8

References

8 total

Kernel Git
https://git.kernel.org/stable/c/067a7c48c2c70f05f9460d6f0e8423e234729f05

Patch
Kernel Git
https://git.kernel.org/stable/c/5c28478af371a1c3fdb570ca67f110e1ae60fc37

Patch
Kernel Git
https://git.kernel.org/stable/c/8877243beafa7c6bfc42022cbfdf9e39b25bd4fa

Patch
Kernel Git
https://git.kernel.org/stable/c/c323efd620c741168c8e0cc6fc0be04ab57e331a

Patch
Kernel Git
https://git.kernel.org/stable/c/d69d7804cf9e2ba171a27e5f98bc266f13d0414a

Patch

Showing 5 of 8 references View all on NVD

Details

CVE ID CVE-2023-52448

Severity Medium

CVSS score 5.5 / 10

CVSS version 3.1

Published 2024-02-22

Modified 2024-11-21

KEV No

Patch

Yes

Package linux

Frequently asked questions

What is CVE-2023-52448?

CVE-2023-52448 is a Medium severity Linux kernel vulnerability with a CVSS score of 5.5 out of 10 , classified as a NULL Pointer Dereference flaw (CWE-476) . It affects Linux kernel versions from 4.20 onward and has been patched in 5.4.268, 5.10.209, 5.15.148 and others. CVE-2023-52448 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.
What is the CVSS score for CVE-2023-52448?

CVE-2023-52448 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-2023-52448?

Yes. CVE-2023-52448 has been patched. Fixed versions include 5.4.268, 5.10.209, 5.15.148 and others. If you are running Linux kernel 4.20 or later up to the fix versions, apply the relevant patch for your kernel branch.
Is CVE-2023-52448 actively exploited?

No. CVE-2023-52448 has not been confirmed as actively exploited. It is not listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.