CVE-2024-35965

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Last Modified: UTC

Description

CVE-2024-35965 is a vulnerability in the Linux kernel's Bluetooth L2CAP implementation, caused by inadequate input length validation in the setsockopt function. This flaw allows overly large user-provided data to be copied into kernel memory, potentially leading to buffer overflows, system instability, or privilege escalation. The issue has been fixed by adding proper checks to ensure data size is within acceptable limits. Users should update their Linux kernel to the patched version to mitigate this risk.

CVE-2024-35965 is a vulnerability in the Linux kernel's Bluetooth L2CAP implementation, caused by inadequate input length validation in the setsockopt function. This flaw allows overly large user-provided data to be copied into kernel memory, potentially leading to buffer overflows, system instability, or privilege escalation. The issue has been fixed by adding proper checks to ensure data size is within acceptable limits. Users should update their Linux kernel to the patched version to mitigate this risk.

Additional information

  • Bugzilla 2281909: kernel: Bluetooth: L2CAP: Fix not validating setsockopt user input
  • FAQ: Frequently asked questions about CVE-2024-35965

Common Vulnerability Scoring System (CVSS) Score Details

Important note

CVSS scores for open source components depend on vendor-specific factors (e.g. version or build chain). Therefore, Red Hat's score and impact rating can be different from NVD and other vendors. Red Hat remains the authoritative CVE Naming Authority (CNA) source for its products and services (see Red Hat classifications).

The following CVSS metrics and score provided are preliminary and subject to review.

CVSS v3 Score Breakdown
Red HatNVD

CVSS v3 Base Score

5.5

N/A

Attack Vector

Local

N/A

Attack Complexity

Low

N/A

Privileges Required

Low

N/A

User Interaction

None

N/A

Scope

Unchanged

N/A

Confidentiality Impact

None

N/A

Integrity Impact

None

N/A

Availability Impact

High

N/A

CVSS v3 Vector

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

Frequently Asked Questions

Why is Red Hat's CVSS v3 score or Impact different from other vendors?

My product is listed as "Under investigation" or "Affected", when will Red Hat release a fix for this vulnerability?

What can I do if my product is listed as "Will not fix"?

What can I do if my product is listed as "Fix deferred"?

What is a mitigation?

I have a Red Hat product but it is not in the above list, is it affected?

Why is my security scanner reporting my product as vulnerable to this vulnerability even though my product version is fixed or not affected?

My product is listed as "Out of Support Scope". What does this mean?

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