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CVE-2024-26695

5.5 · MEDIUM
Published Apr 3, 2024 linux CWE-476 EPSS 0.24% (15th pctl)

Overview

CVE-2024-26695 is a medium-severity vulnerability affecting linux linux_kernel. It was published on April 3, 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:

crypto: ccp - Fix null pointer dereference in __sev_platform_shutdown_locked

The SEV platform device can be shutdown with a null psp_master,

e.g., using DEBUG_TEST_DRIVER_REMOVE. Found using KASAN:

[ 137.148210] ccp 0000:23:00.1: enabling device (0000 -> 0002)

[ 137.162647] ccp 0000:23:00.1: no command queues available

[ 137.170598] ccp 0000:23:00.1: sev enabled

[ 137.174645] ccp 0000:23:00.1: psp enabled

[ 137.178890] general protection fault, probably for non-canonical address 0xdffffc000000001e: 0000 [#1] PREEMPT SMP DEBUG_PAGEALLOC KASAN NOPTI

[ 137.182693] KASAN: null-ptr-deref in range [0x00000000000000f0-0x00000000000000f7]

[ 137.182693] CPU: 93 PID: 1 Comm: swapper/0 Not tainted 6.8.0-rc1+ #311

[ 137.182693] RIP: 0010:__sev_platform_shutdown_locked+0x51/0x180

[ 137.182693] Code: 08 80 3c 08 00 0f 85 0e 01 00 00 48 8b 1d 67 b6 01 08 48 b8 00 00 00 00 00 fc ff df 48 8d bb f0 00 00 00 48 89 f9 48 c1 e

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 >= 5.10.137, < 5.10.210 Affected

References

Ref git.kernel.org/stable/c/58054faf3bd29cd0b949b77efcb6157f66f401ed Ref git.kernel.org/stable/c/7535ec350a5f09b5756a7607f5582913f21200f4 Ref git.kernel.org/stable/c/8731fe001a60581794ed9cf65da8cd304846a6fb Ref git.kernel.org/stable/c/88aa493f393d2ee38ac140e1f6ac1881346e85d4 Ref git.kernel.org/stable/c/b5909f197f3b26aebedca7d8ac7b688fd993a266 Ref git.kernel.org/stable/c/ccb88e9549e7cfd8bcd511c538f437e20026e983 Ref git.kernel.org/stable/c/58054faf3bd29cd0b949b77efcb6157f66f401ed Ref git.kernel.org/stable/c/7535ec350a5f09b5756a7607f5582913f21200f4 Ref git.kernel.org/stable/c/8731fe001a60581794ed9cf65da8cd304846a6fb Ref git.kernel.org/stable/c/88aa493f393d2ee38ac140e1f6ac1881346e85d4

Frequently Asked Questions

What is CVE-2024-26695?

CVE-2024-26695 is a medium-severity vulnerability affecting linux linux_kernel. It was published on April 3, 2024 and has a CVSS 3.1 base score of 5.5 (MEDIUM).

How severe is CVE-2024-26695?

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-2024-26695?

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-2024-26695?

CyberStrike's AI-powered security agents can automatically detect CVE-2024-26695 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

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