What is CVE-2023-52450?

CVE-2023-52450 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 6.2 onward and patched in 6.6.14, 6.7.2 and 6.8. CVE-2023-52450 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

What is the CVSS score for CVE-2023-52450?

CVE-2023-52450 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-2023-52450?

Yes, CVE-2023-52450 has been patched. Fixed versions include 6.6.14, 6.7.2 and 6.8. If you are running Linux kernel 6.2 or later up to the fix versions, apply the relevant patch for your kernel branch.

Is CVE-2023-52450 actively exploited?

CVE-2023-52450 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-2023-52450

Medium

In the Linux kernel, the following vulnerability has been resolved: perf/x86/intel/uncore: Fix NULL pointer dereference issue in upi_fill_topology() Get logical socket id instead of physical id in discover_upi_topology() to avoid out-of-bound access on 'upi = &type->topology[nid][idx];' line that leads to NULL pointer dereference in upi_fill_topology()

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-2023-52450 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 6.2 and later are affected. Fixed in 6.6.14, 6.7.2, 6.8 and their respective stable series.

Affected from

≥ 6.2

Fixed in

✓ 6.6.14 6.6.x ✓ 6.7.2 6.7.x ✓ 6.8

References

3 total

Kernel Git
https://git.kernel.org/stable/c/1692cf434ba13ee212495b5af795b6a07e986ce4

Patch
Kernel Git
https://git.kernel.org/stable/c/3d6f4a78b104c65e4256c3776c9949f49a1b459e

Patch
Kernel Git
https://git.kernel.org/stable/c/bf1bf09e6b599758851457f3999779622a48d015

Patch

Details

CVE ID CVE-2023-52450

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-2023-52450?

CVE-2023-52450 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 6.2 onward and has been patched in 6.6.14, 6.7.2 and 6.8. CVE-2023-52450 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.
What is the CVSS score for CVE-2023-52450?

CVE-2023-52450 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-2023-52450?

Yes. CVE-2023-52450 has been patched. Fixed versions include 6.6.14, 6.7.2 and 6.8. If you are running Linux kernel 6.2 or later up to the fix versions, apply the relevant patch for your kernel branch.
Is CVE-2023-52450 actively exploited?

No. CVE-2023-52450 has not been confirmed as actively exploited. It is not listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.