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CVE-2024-41040

9.8 · CRITICAL
Published Jul 29, 2024 linux CWE-416 EPSS 1.00% (60th pctl)

Overview

CVE-2024-41040 is a critical-severity vulnerability affecting linux linux_kernel. It was published on July 29, 2024 and has a CVSS 3.1 base score of 9.8 (CRITICAL).

This vulnerability has a CVSS 3.1 base score of 9.8, 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/sched: Fix UAF when resolving a clash

KASAN reports the following UAF:

BUG: KASAN: slab-use-after-free in tcf_ct_flow_table_process_conn+0x12b/0x380 [act_ct]

Read of size 1 at addr ffff888c07603600 by task handler130/6469

Call Trace:

<IRQ>

dump_stack_lvl+0x48/0x70

print_address_description.constprop.0+0x33/0x3d0

print_report+0xc0/0x2b0

kasan_report+0xd0/0x120

__asan_load1+0x6c/0x80

tcf_ct_flow_table_process_conn+0x12b/0x380 [act_ct]

tcf_ct_act+0x886/0x1350 [act_ct]

tcf_action_exec+0xf8/0x1f0

fl_classify+0x355/0x360 [cls_flower]

__tcf_classify+0x1fd/0x330

tcf_classify+0x21c/0x3c0

sch_handle_ingress.constprop.0+0x2c5/0x500

__netif_receive_skb_core.constprop.0+0xb25/0x1510

__netif_receive_skb_list_core+0x220/0x4c0

netif_receive_skb_list_internal+0x446/0x620

napi_complete_done+0x157/0x3d0

gro_cell_poll+0xcf/0x100

__napi_poll+0x65/0x310

net_rx_action+0x30c/0x5c0

__do_soft

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 >= 5.10.43, < 5.10.222 Affected

Frequently Asked Questions

What is CVE-2024-41040?

CVE-2024-41040 is a critical-severity vulnerability affecting linux linux_kernel. It was published on July 29, 2024 and has a CVSS 3.1 base score of 9.8 (CRITICAL).

How severe is CVE-2024-41040?

This vulnerability has a CVSS 3.1 base score of 9.8, 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-2024-41040?

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-2024-41040?

CyberStrike's AI-powered security agents can automatically detect CVE-2024-41040 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.