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CVE-2024-26863

5.5 · MEDIUM
Published Apr 17, 2024 linux CWE-908 EPSS 0.25% (16th pctl)

Overview

CVE-2024-26863 is a medium-severity vulnerability affecting linux linux_kernel. It was published on April 17, 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:

hsr: Fix uninit-value access in hsr_get_node()

KMSAN reported the following uninit-value access issue [1]:

=====================================================

BUG: KMSAN: uninit-value in hsr_get_node+0xa2e/0xa40 net/hsr/hsr_framereg.c:246

hsr_get_node+0xa2e/0xa40 net/hsr/hsr_framereg.c:246

fill_frame_info net/hsr/hsr_forward.c:577 [inline]

hsr_forward_skb+0xe12/0x30e0 net/hsr/hsr_forward.c:615

hsr_dev_xmit+0x1a1/0x270 net/hsr/hsr_device.c:223

__netdev_start_xmit include/linux/netdevice.h:4940 [inline]

netdev_start_xmit include/linux/netdevice.h:4954 [inline]

xmit_one net/core/dev.c:3548 [inline]

dev_hard_start_xmit+0x247/0xa10 net/core/dev.c:3564

__dev_queue_xmit+0x33b8/0x5130 net/core/dev.c:4349

dev_queue_xmit include/linux/netdevice.h:3134 [inline]

packet_xmit+0x9c/0x6b0 net/packet/af_packet.c:276

packet_snd net/packet/af_packet.c:3087 [inline]

packet_sendmsg+0x8b1d/0x9f30 net/packet/af_packet.c:311

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 >= 3.17, < 4.19.311 Affected

Frequently Asked Questions

What is CVE-2024-26863?

CVE-2024-26863 is a medium-severity vulnerability affecting linux linux_kernel. It was published on April 17, 2024 and has a CVSS 3.1 base score of 5.5 (MEDIUM).

How severe is CVE-2024-26863?

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-2024-26863?

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-2024-26863?

CyberStrike's AI-powered security agents can automatically detect CVE-2024-26863 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.