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CVE-2024-42106

5.5 · MEDIUM
Published Jul 30, 2024 linux CWE-908 EPSS 0.26% (17th pctl)

Overview

CVE-2024-42106 is a medium-severity vulnerability affecting linux linux_kernel. It was published on July 30, 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:

inet_diag: Initialize pad field in struct inet_diag_req_v2

KMSAN reported uninit-value access in raw_lookup() [1]. Diag for raw

sockets uses the pad field in struct inet_diag_req_v2 for the

underlying protocol. This field corresponds to the sdiag_raw_protocol

field in struct inet_diag_req_raw.

inet_diag_get_exact_compat() converts inet_diag_req to

inet_diag_req_v2, but leaves the pad field uninitialized. So the issue

occurs when raw_lookup() accesses the sdiag_raw_protocol field.

Fix this by initializing the pad field in

inet_diag_get_exact_compat(). Also, do the same fix in

inet_diag_dump_compat() to avoid the similar issue in the future.

[1]

BUG: KMSAN: uninit-value in raw_lookup net/ipv4/raw_diag.c:49 [inline]

BUG: KMSAN: uninit-value in raw_sock_get+0x657/0x800 net/ipv4/raw_diag.c:71

raw_lookup net/ipv4/raw_diag.c:49 [inline]

raw_sock_get+0x657/0x800 net/ipv4/raw_diag.c:71

raw_diag_dump_one+0xa1/0x660 net/i

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 >= 4.10, < 4.19.318 Affected

References

Ref git.kernel.org/stable/c/0184bf0a349f4cf9e663abbe862ff280e8e4dfa2 Ref git.kernel.org/stable/c/61cf1c739f08190a4cbf047b9fbb192a94d87e3f Ref git.kernel.org/stable/c/7094a5fd20ab66028f1da7f06e0f2692d70346f9 Ref git.kernel.org/stable/c/76965648fe6858db7c5f3c700fef7aa5f124ca1c Ref git.kernel.org/stable/c/7ef519c8efde152e0d632337f2994f6921e0b7e4 Ref git.kernel.org/stable/c/8366720519ea8d322a20780debdfd23d9fc0904a Ref git.kernel.org/stable/c/d6f487e0704de2f2d15f8dd5d7d723210f2b2fdb Ref git.kernel.org/stable/c/f9b2010e8af49fac9d9562146fb81744d8a9b051 Ref git.kernel.org/stable/c/0184bf0a349f4cf9e663abbe862ff280e8e4dfa2 Ref git.kernel.org/stable/c/61cf1c739f08190a4cbf047b9fbb192a94d87e3f

Frequently Asked Questions

What is CVE-2024-42106?

CVE-2024-42106 is a medium-severity vulnerability affecting linux linux_kernel. It was published on July 30, 2024 and has a CVSS 3.1 base score of 5.5 (MEDIUM).

How severe is CVE-2024-42106?

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-2024-42106?

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-2024-42106?

CyberStrike's AI-powered security agents can automatically detect CVE-2024-42106 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

Autonomous Discovery

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