CVE-2023-52735

Linux Kernel vulnerability

9.1 CRITICALEPSS 1.22%

Published21 May 2024

Description

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]/

CVSS 3.1 breakdown

Attack vectorNetwork

Attack complexityLow

Privileges requiredNone

User interactionNone

ScopeUnchanged

ConfidentialityHigh

IntegrityNone

AvailabilityHigh

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

Affected products

Linux Kernel≥ 5.16 < 6.1.13 · < 5.15.95 · 6.2

Remediation

Fixed in

Linux Kernel≥ 6.1.13

Frequently asked

Is CVE-2023-52735 being actively exploited?

CVE-2023-52735 is not in the CISA KEV catalog. Its EPSS exploit probability is 1.22%.

How severe is CVE-2023-52735?

CVE-2023-52735 has a CVSS 3.1 base score of 9.1, rated critical. EPSS estimates a 1.22% probability of exploitation.

Which products are affected by CVE-2023-52735?

Affected products include Linux Kernel.

How do I fix CVE-2023-52735?

Upgrade affected software to a fixed version, for example Linux Kernel 6.1.13 or later, then confirm no affected versions remain in your inventory.

How Secuno handles this

Secuno correlates vulnerabilities like CVE-2023-52735 against the real software inventory on every managed device, every day. Rather than a static severity, each match is scored in context: exploit availability, EPSS, the asset's exposure, and business criticality decide where it lands in the queue. If an affected version is present anywhere across your portfolio, it surfaces automatically with a prioritised remediation path.

See how prioritisation works Book a demo

Data from the NVD, CISA KEV catalog and FIRST EPSS. CVSS 3.1 base score shown where available.