CVE-2023-52530

High

In the Linux kernel, the following vulnerability has been resolved: wifi: mac80211: fix potential key use-after-free When ieee80211_key_link() is called by ieee80211_gtk_rekey_add() but returns 0 due to KRACK protection (identical key reinstall), ieee80211_gtk_rekey_add() will still return a pointer into the key, in a potential use-after-free. This normally doesn't happen since it's only called by iwlwifi in case of WoWLAN rekey offload which has its own KRACK protection, but still better to fix, do that by returning an error code and converting that to success on the cfg80211 boundary only, leaving the error for bad callers of ieee80211_gtk_rekey_add().

Package Linux Kernel
Published 2024-03-02
Last modified 2025-11-03
CVSS version 3.1
Patch available
Yes

CVSS 3.1 score

7.8

out of 10
High
Attack Vector
Local
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High
Vector string
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Weakness type

CWE-416

CVE-2023-52530 is a Use After Free vulnerability

What is Use After Free?

The product references memory after it has been freed, which may cause it to crash, use unexpected values, or execute code. Learn more on MITRE CWE

Affected versions

Linux kernel versions 3.2.95, 3.16.50, 3.18.82, 4.1.47, 4.4.99, 4.9.63, 4.13.14, 4.14 and later are affected. Fixed in 5.4.285, 5.10.228, 5.15.169, 6.1.57, 6.5.7, 6.6 and their respective stable series.

Affected from
≥ 3.2.95 ≥ 3.16.50 ≥ 3.18.82 ≥ 4.1.47 ≥ 4.4.99 ≥ 4.9.63 ≥ 4.13.14 ≥ 4.14
Fixed in
✓ 5.4.285 5.4.x ✓ 5.10.228 5.10.x ✓ 5.15.169 5.15.x ✓ 6.1.57 6.1.x ✓ 6.5.7 6.5.x ✓ 6.6

References

7 total
Showing 5 of 7 references View all on NVD

Frequently asked questions

  • What is CVE-2023-52530?

    CVE-2023-52530 is a High severity Linux kernel vulnerability with a CVSS score of 7.8 out of 10 , classified as an Use After Free flaw (CWE-416) . It affects Linux kernel versions from 3.2.95 onward and has been patched in 5.4.285, 5.10.228, 5.15.169 and others. CVE-2023-52530 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

  • What is the CVSS score for CVE-2023-52530?

    CVE-2023-52530 has a CVSS score of 7.8 out of 10, rated High severity (CVSS 3.1). The vector string is CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H .

  • Is there a patch available for CVE-2023-52530?

    Yes. CVE-2023-52530 has been patched. Fixed versions include 5.4.285, 5.10.228, 5.15.169 and others. If you are running Linux kernel 3.2.95 or later up to the fix versions, apply the relevant patch for your kernel branch.

  • Is CVE-2023-52530 actively exploited?

    No. CVE-2023-52530 has not been confirmed as actively exploited. It is not listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.

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