What is CVE-2023-52581?

CVE-2023-52581 is a Medium severity Linux kernel vulnerability with a CVSS score of 6.3 out of 10, classified as a Memory Leak flaw (CWE-401). CVE-2023-52581 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

What is the CVSS score for CVE-2023-52581?

CVE-2023-52581 has a CVSS score of 6.3 out of 10, rated Medium severity. The vector string is CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:H.

Is there a patch available for CVE-2023-52581?

No patch is currently available for CVE-2023-52581. Monitor the NIST NVD and your Linux distribution's security advisories for updates.

Is CVE-2023-52581 actively exploited?

CVE-2023-52581 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

What is Memory Leak (CWE-401)?

The product does not release memory after use, causing gradual resource exhaustion. See MITRE CWE for full details: https://cwe.mitre.org/data/definitions/401.html

CVE-2023-52581

Medium

In the Linux kernel, the following vulnerability has been resolved: netfilter: nf_tables: fix memleak when more than 255 elements expired When more than 255 elements expired we're supposed to switch to a new gc container structure. This never happens: u8 type will wrap before reaching the boundary and nft_trans_gc_space() always returns true. This means we recycle the initial gc container structure and lose track of the elements that came before. While at it, don't deref 'gc' after we've passed it to call_rcu.

Package Linux Kernel

Published 2024-03-02

Last modified 2025-04-04

CVSS version 3.1

Patch available

Awaiting data

CVSS 3.1 score

6.3

out of 10

Medium

Attack Vector

Local

Attack Complexity

High

Privileges Required

Low

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

None

Availability

High

Vector string

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

Weakness type

CWE-401

CVE-2023-52581 is a Memory Leak vulnerability

What is Memory Leak?

The product does not release memory after use, causing gradual resource exhaustion. Learn more on MITRE CWE

References

The following references provide additional information about CVE-2023-52581 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/09c85f2d21ab6b5acba31a037985b13e8e6565b8
Patch
Kernel patch commit
https://git.kernel.org/stable/c/4aea243b6853d06c1d160a9955b759189aa02b14
Patch
Kernel patch commit
https://git.kernel.org/stable/c/7cf055b43756b10aa2b851c927c940f5ed652125
Patch

7 patch commits total View all on NVD

Details

CVE ID CVE-2023-52581

Severity Medium

CVSS score 6.3 / 10

CVSS version 3.1

Published 2024-03-02

Modified 2025-04-04

KEV No

Patch Awaiting data

Package linux

Frequently asked questions

What is CVE-2023-52581?

CVE-2023-52581 is a Medium severity Linux kernel vulnerability with a CVSS score of 6.3 out of 10 , classified as a Memory Leak flaw (CWE-401) . CVE-2023-52581 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.
What is the CVSS score for CVE-2023-52581?

CVE-2023-52581 has a CVSS score of 6.3 out of 10, rated Medium severity (CVSS 3.1). The vector string is CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:H.
Is there a patch available for CVE-2023-52581?

No patch is currently available for CVE-2023-52581. Monitor the NIST NVD and your Linux distribution's security advisories for updates.
Is CVE-2023-52581 actively exploited?

No — CVE-2023-52581 has not been confirmed as actively exploited. It is not listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.
What is Memory Leak (CWE-401)?

The product does not release memory after use, causing gradual resource exhaustion. View CWE-401 on MITRE CWE →