CVE-2024-53123

5.5 · MEDIUM

Published Dec 2, 2024 linux CWE-362 EPSS 0.18% (7th pctl) CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Overview

CVE-2024-53123 is a medium-severity vulnerability affecting linux linux_kernel. It was published on December 2, 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:

mptcp: error out earlier on disconnect

Eric reported a division by zero splat in the MPTCP protocol:

Oops: divide error: 0000 [#1] PREEMPT SMP KASAN PTI

CPU: 1 UID: 0 PID: 6094 Comm: syz-executor317 Not tainted

6.12.0-rc5-syzkaller-00291-g05b92660cdfe #0

Hardware name: Google Google Compute Engine/Google Compute Engine,

BIOS Google 09/13/2024

RIP: 0010:__tcp_select_window+0x5b4/0x1310 net/ipv4/tcp_output.c:3163

Code: f6 44 01 e3 89 df e8 9b 75 09 f8 44 39 f3 0f 8d 11 ff ff ff e8

0d 74 09 f8 45 89 f4 e9 04 ff ff ff e8 00 74 09 f8 44 89 f0 99 <f7> 7c

24 14 41 29 d6 45 89 f4 e9 ec fe ff ff e8 e8 73 09 f8 48 89

RSP: 0018:ffffc900041f7930 EFLAGS: 00010293

RAX: 0000000000017e67 RBX: 0000000000017e67 RCX: ffffffff8983314b

RDX: 0000000000000000 RSI: ffffffff898331b0 RDI: 0000000000000004

RBP: 00000000005d6000 R08: 0000000000000004 R09: 0000000000017e67

R10: 0000000000003e80 R11: 0000000000000000 R12: 0000000000003e80

R13: f

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	>= 6.1.60, < 6.1.119	Affected

References

Ref git.kernel.org/stable/c/581302298524e9d77c4c44ff5156a6cd112227ae Ref git.kernel.org/stable/c/955388e1d5d222c4101c596b536d41b91a8b212e Ref git.kernel.org/stable/c/a66805c9b22caf4e42af7a616f6c6b83c90d1010 Ref git.kernel.org/stable/c/a749b23059b43a9b1787eb36c5d9d44150a34238 Ref lists.debian.org/debian-lts-announce/2025/01/msg00001.html

Frequently Asked Questions

What is CVE-2024-53123?

CVE-2024-53123 is a medium-severity vulnerability affecting linux linux_kernel. It was published on December 2, 2024 and has a CVSS 3.1 base score of 5.5 (MEDIUM).

How severe is CVE-2024-53123?

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-2024-53123?

How can CyberStrike help with CVE-2024-53123?

CyberStrike's AI-powered security agents can automatically detect CVE-2024-53123 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.

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