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CVE-2024-36889

5.5 · MEDIUM
Published May 30, 2024 linux EPSS 0.27% (19th pctl)

Overview

CVE-2024-36889 is a medium-severity vulnerability affecting linux linux_kernel. It was published on May 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:

mptcp: ensure snd_nxt is properly initialized on connect

Christoph reported a splat hinting at a corrupted snd_una:

WARNING: CPU: 1 PID: 38 at net/mptcp/protocol.c:1005 __mptcp_clean_una+0x4b3/0x620 net/mptcp/protocol.c:1005

Modules linked in:

CPU: 1 PID: 38 Comm: kworker/1:1 Not tainted 6.9.0-rc1-gbbeac67456c9 #59

Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.11.0-2.el7 04/01/2014

Workqueue: events mptcp_worker

RIP: 0010:__mptcp_clean_una+0x4b3/0x620 net/mptcp/protocol.c:1005

Code: be 06 01 00 00 bf 06 01 00 00 e8 a8 12 e7 fe e9 00 fe ff ff e8

8e 1a e7 fe 0f b7 ab 3e 02 00 00 e9 d3 fd ff ff e8 7d 1a e7 fe

<0f> 0b 4c 8b bb e0 05 00 00 e9 74 fc ff ff e8 6a 1a e7 fe 0f 0b e9

RSP: 0018:ffffc9000013fd48 EFLAGS: 00010293

RAX: 0000000000000000 RBX: ffff8881029bd280 RCX: ffffffff82382fe4

RDX: ffff8881003cbd00 RSI: ffffffff823833c3 RDI: 0000000000000001

RBP: 0000000000000000 R08:

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 >= 5.9, < 5.10.218 Affected

References

Ref git.kernel.org/stable/c/39ca83ed73db9edcc6d70c0dc7a73085a4725012 Ref git.kernel.org/stable/c/592f69b41766d366dbb8ff4ef5a67c4396527bbe Ref git.kernel.org/stable/c/99951b62bf20cec9247f633a3bea898338b9e5b4 Ref git.kernel.org/stable/c/aa0c07c1f20e05b30019bff083ec43665536f06f Ref git.kernel.org/stable/c/dc941fec0719d0471a5902424d6b2a17df233193 Ref git.kernel.org/stable/c/fb7a0d334894206ae35f023a82cad5a290fd7386 Ref git.kernel.org/stable/c/39ca83ed73db9edcc6d70c0dc7a73085a4725012 Ref git.kernel.org/stable/c/592f69b41766d366dbb8ff4ef5a67c4396527bbe Ref git.kernel.org/stable/c/99951b62bf20cec9247f633a3bea898338b9e5b4 Ref git.kernel.org/stable/c/aa0c07c1f20e05b30019bff083ec43665536f06f

Frequently Asked Questions

What is CVE-2024-36889?

CVE-2024-36889 is a medium-severity vulnerability affecting linux linux_kernel. It was published on May 30, 2024 and has a CVSS 3.1 base score of 5.5 (MEDIUM).

How severe is CVE-2024-36889?

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-2024-36889?

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-2024-36889?

CyberStrike's AI-powered security agents can automatically detect CVE-2024-36889 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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HackBrowser

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