What is CVE-2023-52735?

CVE-2023-52735 is a Critical severity Linux kernel vulnerability with a CVSS score of 9.1 out of 10, affecting Linux kernel versions from 5.15.3 onward and patched in 5.15.95, 6.1.13 and 6.2. CVE-2023-52735 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

What is the CVSS score for CVE-2023-52735?

CVE-2023-52735 has a CVSS score of 9.1 out of 10, rated Critical severity. The vector string is CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H.

Is there a patch available for CVE-2023-52735?

Yes, CVE-2023-52735 has been patched. Fixed versions include 5.15.95, 6.1.13 and 6.2. If you are running Linux kernel 5.15.3 or later up to the fix versions, apply the relevant patch for your kernel branch.

Is CVE-2023-52735 actively exploited?

CVE-2023-52735 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

CVE-2023-52735

Critical

In the Linux kernel, the following vulnerability has been resolved: bpf, sockmap: Don't let sock_map_{close,destroy,unhash} call itself sock_map proto callbacks should never call themselves by design. Protect against bugs like [1] and break out of the recursive loop to avoid a stack overflow in favor of a resource leak. [1] https://lore.kernel.org/all/[email protected]/

Package Linux Kernel

Published 2024-05-21

Last modified 2025-04-02

CVSS version 3.1

Patch available

Yes

CVSS 3.1 score

9.1

out of 10

Critical

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

None

Availability

High

Vector string

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

Weakness type

CWE-120

CVE-2023-52735 is classified as CWE-120

See CWE-120 on MITRE CWE for full details on this weakness type.

Affected versions

Linux kernel versions 5.15.3, 5.14.19, 5.16 and later are affected. Fixed in 5.15.95, 6.1.13, 6.2 and their respective stable series.

Affected from

≥ 5.15.3 ≥ 5.14.19 ≥ 5.16

Fixed in

✓ 5.15.95 5.15.x ✓ 6.1.13 6.1.x ✓ 6.2

References

3 total

Kernel Git
https://git.kernel.org/stable/c/5b4a79ba65a1ab479903fff2e604865d229b70a9

Patch
Kernel Git
https://git.kernel.org/stable/c/7499859881488da97589f3c79cc66fa75748ad49

Patch
Kernel Git
https://git.kernel.org/stable/c/f312367f5246e04df564d341044286e9e37a97ba

Patch

Details

CVE ID CVE-2023-52735

Severity Critical

CVSS score 9.1 / 10

CVSS version 3.1

Published 2024-05-21

Modified 2025-04-02

KEV No

Patch

Yes

Package linux

Frequently asked questions

What is CVE-2023-52735?

CVE-2023-52735 is a Critical severity Linux kernel vulnerability with a CVSS score of 9.1 out of 10 . It affects Linux kernel versions from 5.15.3 onward and has been patched in 5.15.95, 6.1.13 and 6.2. CVE-2023-52735 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.
What is the CVSS score for CVE-2023-52735?

CVE-2023-52735 has a CVSS score of 9.1 out of 10, rated Critical severity (CVSS 3.1). The vector string is CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H.
Is there a patch available for CVE-2023-52735?

Yes. CVE-2023-52735 has been patched. Fixed versions include 5.15.95, 6.1.13 and 6.2. If you are running Linux kernel 5.15.3 or later up to the fix versions, apply the relevant patch for your kernel branch.
Is CVE-2023-52735 actively exploited?

No. CVE-2023-52735 has not been confirmed as actively exploited. It is not listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.