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CVE-2024-44965

5.5 · MEDIUM
Published Sep 4, 2024 linux EPSS 0.22% (13th pctl)

Overview

CVE-2024-44965 is a medium-severity vulnerability affecting linux linux_kernel. It was published on September 4, 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:

x86/mm: Fix pti_clone_pgtable() alignment assumption

Guenter reported dodgy crashes on an i386-nosmp build using GCC-11

that had the form of endless traps until entry stack exhaust and then

#DF from the stack guard.

It turned out that pti_clone_pgtable() had alignment assumptions on

the start address, notably it hard assumes start is PMD aligned. This

is true on x86_64, but very much not true on i386.

These assumptions can cause the end condition to malfunction, leading

to a 'short' clone. Guess what happens when the user mapping has a

short copy of the entry text?

Use the correct increment form for addr to avoid alignment

assumptions.

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 >= 4.19, < 4.19.320 Affected

References

Ref git.kernel.org/stable/c/18da1b27ce16a14a9b636af9232acb4fb24f4c9e Ref git.kernel.org/stable/c/25a727233a40a9b33370eec9f0cad67d8fd312f8 Ref git.kernel.org/stable/c/41e71dbb0e0a0fe214545fe64af031303a08524c Ref git.kernel.org/stable/c/4d143ae782009b43b4f366402e5c37f59d4e4346 Ref git.kernel.org/stable/c/5c580c1050bcbc15c3e78090859d798dcf8c9763 Ref git.kernel.org/stable/c/ca07aab70dd3b5e7fddb62d7a6ecd7a7d6d0b2ed Ref git.kernel.org/stable/c/d00c9b4bbc442d99e1dafbdfdab848bc1ead73f6 Ref git.kernel.org/stable/c/df3eecb5496f87263d171b254ca6e2758ab3c35c Ref lists.debian.org/debian-lts-announce/2024/10/msg00003.html Ref lists.debian.org/debian-lts-announce/2025/01/msg00001.html

Frequently Asked Questions

What is CVE-2024-44965?

CVE-2024-44965 is a medium-severity vulnerability affecting linux linux_kernel. It was published on September 4, 2024 and has a CVSS 3.1 base score of 5.5 (MEDIUM).

How severe is CVE-2024-44965?

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-2024-44965?

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-2024-44965?

CyberStrike's AI-powered security agents can automatically detect CVE-2024-44965 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

AI agents map your attack surface to find vulnerabilities like this one.
Continuous Pentesting

Automated penetration testing that runs continuously, not just quarterly.
Code Review

AI-driven PR review catches vulnerable dependencies before they ship.
HackBrowser

Browser-based exploitation validates findings with real proof-of-concept.

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