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CVE-2024-26611

7.5 · HIGH
Published Mar 11, 2024 linux CWE-476 EPSS 0.64% (48th pctl)

Overview

CVE-2024-26611 is a high-severity vulnerability affecting linux linux_kernel. It was published on March 11, 2024 and has a CVSS 3.1 base score of 7.5 (HIGH).

This vulnerability has a CVSS 3.1 base score of 7.5, rated HIGH. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.

Technical Description

In the Linux kernel, the following vulnerability has been resolved:

xsk: fix usage of multi-buffer BPF helpers for ZC XDP

Currently when packet is shrunk via bpf_xdp_adjust_tail() and memory

type is set to MEM_TYPE_XSK_BUFF_POOL, null ptr dereference happens:

[1136314.192256] BUG: kernel NULL pointer dereference, address:

0000000000000034

[1136314.203943] #PF: supervisor read access in kernel mode

[1136314.213768] #PF: error_code(0x0000) - not-present page

[1136314.223550] PGD 0 P4D 0

[1136314.230684] Oops: 0000 [#1] PREEMPT SMP NOPTI

[1136314.239621] CPU: 8 PID: 54203 Comm: xdpsock Not tainted 6.6.0+ #257

[1136314.250469] Hardware name: Intel Corporation S2600WFT/S2600WFT,

BIOS SE5C620.86B.02.01.0008.031920191559 03/19/2019

[1136314.265615] RIP: 0010:__xdp_return+0x6c/0x210

[1136314.274653] Code: ad 00 48 8b 47 08 49 89 f8 a8 01 0f 85 9b 01 00 00 0f 1f 44 00 00 f0 41 ff 48 34 75 32 4c 89 c7 e9 79 cd 80 ff 83 fe 03 75 17 <f6> 41 34 01 0f 85 02 01 00 00 48 89 cf e9 22 cc 1e 00 e9 3d

Remediation

Check the references section for vendor advisories and patches from linux. Update linux_kernel to the latest patched version. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

Affected Products

Vendor Product Versions Status
linux linux_kernel >= 6.6, < 6.6.15 Affected

Frequently Asked Questions

What is CVE-2024-26611?

CVE-2024-26611 is a high-severity vulnerability affecting linux linux_kernel. It was published on March 11, 2024 and has a CVSS 3.1 base score of 7.5 (HIGH).

How severe is CVE-2024-26611?

This vulnerability has a CVSS 3.1 base score of 7.5, rated HIGH. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.

How do I fix or remediate CVE-2024-26611?

Check the references section for vendor advisories and patches from linux. Update linux_kernel to the latest patched version. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

How can CyberStrike help with CVE-2024-26611?

CyberStrike's AI-powered security agents can automatically detect CVE-2024-26611 across your infrastructure using autonomous pentesting, DAST scanning, and HackBrowser. The platform continuously monitors for known vulnerabilities and provides actionable remediation guidance prioritized by real-world exploitability.