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CVE-2024-38558

10.0 · CRITICAL
Published Jun 19, 2024 linux CWE-665 EPSS 0.82% (55th pctl)

Overview

CVE-2024-38558 is a critical-severity vulnerability affecting linux linux_kernel. It was published on June 19, 2024 and has a CVSS 3.1 base score of 10.0 (CRITICAL).

This vulnerability has a CVSS 3.1 base score of 10.0, rated CRITICAL. 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:

net: openvswitch: fix overwriting ct original tuple for ICMPv6

OVS_PACKET_CMD_EXECUTE has 3 main attributes:

- OVS_PACKET_ATTR_KEY - Packet metadata in a netlink format.

- OVS_PACKET_ATTR_PACKET - Binary packet content.

- OVS_PACKET_ATTR_ACTIONS - Actions to execute on the packet.

OVS_PACKET_ATTR_KEY is parsed first to populate sw_flow_key structure

with the metadata like conntrack state, input port, recirculation id,

etc. Then the packet itself gets parsed to populate the rest of the

keys from the packet headers.

Whenever the packet parsing code starts parsing the ICMPv6 header, it

first zeroes out fields in the key corresponding to Neighbor Discovery

information even if it is not an ND packet.

It is an 'ipv6.nd' field. However, the 'ipv6' is a union that shares

the space between 'nd' and 'ct_orig' that holds the original tuple

conntrack metadata parsed from the OVS_PACKET_ATTR_KEY.

ND packets should not no

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, < 4.19.316 Affected

Frequently Asked Questions

What is CVE-2024-38558?

CVE-2024-38558 is a critical-severity vulnerability affecting linux linux_kernel. It was published on June 19, 2024 and has a CVSS 3.1 base score of 10.0 (CRITICAL).

How severe is CVE-2024-38558?

This vulnerability has a CVSS 3.1 base score of 10.0, rated CRITICAL. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.

How do I fix or remediate CVE-2024-38558?

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-2024-38558?

CyberStrike's AI-powered security agents can automatically detect CVE-2024-38558 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.