CVE-2024-26745

4.4 · MEDIUM

Published Apr 4, 2024 linux CWE-476 EPSS 0.22% (12th pctl) CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H

Overview

CVE-2024-26745 is a medium-severity vulnerability affecting linux linux_kernel. It was published on April 4, 2024 and has a CVSS 3.1 base score of 4.4 (MEDIUM).

This vulnerability has a CVSS 3.1 base score of 4.4, 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:

powerpc/pseries/iommu: IOMMU table is not initialized for kdump over SR-IOV

When kdump kernel tries to copy dump data over SR-IOV, LPAR panics due

to NULL pointer exception:

Kernel attempted to read user page (0) - exploit attempt? (uid: 0)

BUG: Kernel NULL pointer dereference on read at 0x00000000

Faulting instruction address: 0xc000000020847ad4

Oops: Kernel access of bad area, sig: 11 [#1]

LE PAGE_SIZE=64K MMU=Radix SMP NR_CPUS=2048 NUMA pSeries

Modules linked in: mlx5_core(+) vmx_crypto pseries_wdt papr_scm libnvdimm mlxfw tls psample sunrpc fuse overlay squashfs loop

CPU: 12 PID: 315 Comm: systemd-udevd Not tainted 6.4.0-Test102+ #12

Hardware name: IBM,9080-HEX POWER10 (raw) 0x800200 0xf000006 of:IBM,FW1060.00 (NH1060_008) hv:phyp pSeries

NIP: c000000020847ad4 LR: c00000002083b2dc CTR: 00000000006cd18c

REGS: c000000029162ca0 TRAP: 0300 Not tainted (6.4.0-Test102+)

MSR: 800000000280b033

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	>= 5.19.2, < 6.1.81	Affected

References

Frequently Asked Questions

What is CVE-2024-26745?

CVE-2024-26745 is a medium-severity vulnerability affecting linux linux_kernel. It was published on April 4, 2024 and has a CVSS 3.1 base score of 4.4 (MEDIUM).

How severe is CVE-2024-26745?

This vulnerability has a CVSS 3.1 base score of 4.4, 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-2024-26745?

How can CyberStrike help with CVE-2024-26745?

CyberStrike's AI-powered security agents can automatically detect CVE-2024-26745 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

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

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