What is CVE-2023-52646?

CVE-2023-52646 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). CVE-2023-52646 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

What is the CVSS score for CVE-2023-52646?

CVE-2023-52646 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-2023-52646?

No patch is currently available for CVE-2023-52646. Monitor the NIST NVD and your Linux distribution's security advisories for updates.

Is CVE-2023-52646 actively exploited?

CVE-2023-52646 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-2023-52646

Medium

In the Linux kernel, the following vulnerability has been resolved: aio: fix mremap after fork null-deref Commit e4a0d3e720e7 ("aio: Make it possible to remap aio ring") introduced a null-deref if mremap is called on an old aio mapping after fork as mm->ioctx_table will be set to NULL. [[email protected]: fix 80 column issue]

Package Linux Kernel

Published 2024-04-26

Last modified 2025-01-27

CVSS version 3.1

Patch available

Awaiting data

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-2023-52646 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

References

The following references provide additional information about CVE-2023-52646 including vendor advisories, patch commits, exploit details, and third-party analysis. Links are sourced from the NIST NVD database.

Kernel patch commit
https://git.kernel.org/stable/c/178993157e8c50aef7f35d7d6d3b44bb428199e1
Patch
Kernel patch commit
https://git.kernel.org/stable/c/4326d0080f7e84fba775da41d158f46cf9d3f1c2
Patch
Kernel patch commit
https://git.kernel.org/stable/c/808f1e4b5723ae4eda724d2ad6f6638905eefd95
Patch

7 patch commits total View all on NVD

Details

CVE ID CVE-2023-52646

Severity Medium

CVSS score 5.5 / 10

CVSS version 3.1

Published 2024-04-26

Modified 2025-01-27

KEV No

Patch Awaiting data

Package linux

Frequently asked questions

What is CVE-2023-52646?

CVE-2023-52646 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) . CVE-2023-52646 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.
What is the CVSS score for CVE-2023-52646?

CVE-2023-52646 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-2023-52646?

No patch is currently available for CVE-2023-52646. Monitor the NIST NVD and your Linux distribution's security advisories for updates.
Is CVE-2023-52646 actively exploited?

No — CVE-2023-52646 has not been confirmed as actively exploited. It is not listed in the CISA Known Exploited Vulnerabilities (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. View CWE-476 on MITRE CWE →