What is CVE-2023-52481?

CVE-2023-52481 is a Medium severity Linux kernel vulnerability with a CVSS score of 4.7 out of 10. CVE-2023-52481 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

What is the CVSS score for CVE-2023-52481?

CVE-2023-52481 has a CVSS score of 4.7 out of 10, rated Medium severity. The vector string is CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:L/I:L/A:L.

Is there a patch available for CVE-2023-52481?

No patch is currently available for CVE-2023-52481. Monitor the NIST NVD and your Linux distribution's security advisories for updates.

Is CVE-2023-52481 actively exploited?

CVE-2023-52481 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

CVE-2023-52481

Medium

In the Linux kernel, the following vulnerability has been resolved: arm64: errata: Add Cortex-A520 speculative unprivileged load workaround Implement the workaround for ARM Cortex-A520 erratum 2966298. On an affected Cortex-A520 core, a speculatively executed unprivileged load might leak data from a privileged load via a cache side channel. The issue only exists for loads within a translation regime with the same translation (e.g. same ASID and VMID). Therefore, the issue only affects the return to EL0. The workaround is to execute a TLBI before returning to EL0 after all loads of privileged data. A non-shareable TLBI to any address is sufficient. The workaround isn't necessary if page table isolation (KPTI) is enabled, but for simplicity it will be. Page table isolation should normally be disabled for Cortex-A520 as it supports the CSV3 feature and the E0PD feature (used when KASLR is enabled).

Package Linux Kernel

Published 2024-02-29

Last modified 2025-04-04

CVSS version 3.1

Patch available

Awaiting data

CVSS 3.1 score

4.7

out of 10

Medium

Attack Vector

Network

Attack Complexity

Low

Privileges Required

High

User Interaction

None

Scope

Unchanged

Confidentiality

Low

Integrity

Low

Availability

Low

Vector string

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

References

The following references provide additional information about CVE-2023-52481 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/32b0a4ffcaea44a00a61e40c0d1bcc50362aee25
Patch
Kernel patch commit
https://git.kernel.org/stable/c/471470bc7052d28ce125901877dd10e4c048e513
Patch
Kernel patch commit
https://git.kernel.org/stable/c/6e3ae2927b432a3b7c8374f14dbc1bd9ebe4372c
Patch

Details

CVE ID CVE-2023-52481

Severity Medium

CVSS score 4.7 / 10

CVSS version 3.1

Published 2024-02-29

Modified 2025-04-04

KEV No

Patch Awaiting data

Package linux

Frequently asked questions

What is CVE-2023-52481?

CVE-2023-52481 is a Medium severity Linux kernel vulnerability with a CVSS score of 4.7 out of 10 . CVE-2023-52481 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.
What is the CVSS score for CVE-2023-52481?

CVE-2023-52481 has a CVSS score of 4.7 out of 10, rated Medium severity (CVSS 3.1). The vector string is CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:L/I:L/A:L.
Is there a patch available for CVE-2023-52481?

No patch is currently available for CVE-2023-52481. Monitor the NIST NVD and your Linux distribution's security advisories for updates.
Is CVE-2023-52481 actively exploited?

No — CVE-2023-52481 has not been confirmed as actively exploited. It is not listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.