CVE-2024-26595

5.5 · MEDIUM

Published Feb 23, 2024 linux CWE-476 EPSS 0.23% (14th pctl) CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Overview

CVE-2024-26595 is a medium-severity vulnerability affecting linux linux_kernel. It was published on February 23, 2024 and has a CVSS 3.1 base score of 5.5 (MEDIUM).

This vulnerability has a CVSS 3.1 base score of 5.5, rated MEDIUM. It requires local or adjacent network access to exploit. Some level of privileges is required for exploitation.

Technical Description

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

mlxsw: spectrum_acl_tcam: Fix NULL pointer dereference in error path

When calling mlxsw_sp_acl_tcam_region_destroy() from an error path after

failing to attach the region to an ACL group, we hit a NULL pointer

dereference upon 'region->group->tcam' [1].

Fix by retrieving the 'tcam' pointer using mlxsw_sp_acl_to_tcam().

[1]

BUG: kernel NULL pointer dereference, address: 0000000000000000

[...]

RIP: 0010:mlxsw_sp_acl_tcam_region_destroy+0xa0/0xd0

[...]

Call Trace:

mlxsw_sp_acl_tcam_vchunk_get+0x88b/0xa20

mlxsw_sp_acl_tcam_ventry_add+0x25/0xe0

mlxsw_sp_acl_rule_add+0x47/0x240

mlxsw_sp_flower_replace+0x1a9/0x1d0

tc_setup_cb_add+0xdc/0x1c0

fl_hw_replace_filter+0x146/0x1f0

fl_change+0xc17/0x1360

tc_new_tfilter+0x472/0xb90

rtnetlink_rcv_msg+0x313/0x3b0

netlink_rcv_skb+0x58/0x100

netlink_unicast+0x244/0x390

netlink_sendmsg+0x1e4/0x440

____sys_sendmsg+0x164/0x260

___sys_sendmsg+0x9a/0xe0

__sys_sendmsg+0x7a/0xc

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	>= 4.11.0, < 6.6.14	Affected

References

Ref git.kernel.org/stable/c/75fa2d8b3c0175b519c99ace54ab8474cfd0077e Ref git.kernel.org/stable/c/817840d125a370626895df269c50c923b79b0a39 Ref git.kernel.org/stable/c/d0a1efe417c97a1e9b914056ee6b86f1ef75fe1f Ref git.kernel.org/stable/c/efeb7dfea8ee10cdec11b6b6ba4e405edbe75809 Ref git.kernel.org/stable/c/817840d125a370626895df269c50c923b79b0a39 Ref git.kernel.org/stable/c/d0a1efe417c97a1e9b914056ee6b86f1ef75fe1f Ref git.kernel.org/stable/c/efeb7dfea8ee10cdec11b6b6ba4e405edbe75809 Ref lists.debian.org/debian-lts-announce/2025/03/msg00001.html

Frequently Asked Questions

What is CVE-2024-26595?

CVE-2024-26595 is a medium-severity vulnerability affecting linux linux_kernel. It was published on February 23, 2024 and has a CVSS 3.1 base score of 5.5 (MEDIUM).

How severe is CVE-2024-26595?

This vulnerability has a CVSS 3.1 base score of 5.5, rated MEDIUM. It requires local or adjacent network access to exploit. Some level of privileges is required for exploitation.

How do I fix or remediate CVE-2024-26595?

How can CyberStrike help with CVE-2024-26595?

CyberStrike's AI-powered security agents can automatically detect CVE-2024-26595 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.

How CyberStrike Helps

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HackBrowser

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