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CVE-2024-46858

8.1 · HIGH
Published Sep 27, 2024 linux CWE-416 EPSS 0.59% (46th pctl)

Overview

CVE-2024-46858 is a high-severity vulnerability affecting linux linux_kernel. It was published on September 27, 2024 and has a CVSS 3.1 base score of 8.1 (HIGH).

This vulnerability has a CVSS 3.1 base score of 8.1, 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:

mptcp: pm: Fix uaf in __timer_delete_sync

There are two paths to access mptcp_pm_del_add_timer, result in a race

condition:

CPU1 CPU2

==== ====

net_rx_action

napi_poll netlink_sendmsg

__napi_poll netlink_unicast

process_backlog netlink_unicast_kernel

__netif_receive_skb genl_rcv

__netif_receive_skb_one_core netlink_rcv_skb

NF_HOOK genl_rcv_msg

ip_local_deliver_finish genl_family_rcv_msg

ip_protocol_deliver_rcu genl_family_rcv_msg_doit

tcp_v4_rcv mptcp_pm_nl_flush_addrs_doit

tcp_v4_do_rcv mptcp_nl_remove_addrs_list

tcp_rcv_established mptcp_pm_remove_addrs_and_subflows

tcp_data_queue remove_anno_li

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 >= 5.10, < 6.1.111 Affected

Frequently Asked Questions

What is CVE-2024-46858?

CVE-2024-46858 is a high-severity vulnerability affecting linux linux_kernel. It was published on September 27, 2024 and has a CVSS 3.1 base score of 8.1 (HIGH).

How severe is CVE-2024-46858?

This vulnerability has a CVSS 3.1 base score of 8.1, 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-2024-46858?

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-2024-46858?

CyberStrike's AI-powered security agents can automatically detect CVE-2024-46858 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.