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CVE-2023-52817

5.5 · MEDIUM
Published May 21, 2024 linux CWE-476 EPSS 0.24% (15th pctl)

Overview

CVE-2023-52817 is a medium-severity vulnerability affecting linux linux_kernel. It was published on May 21, 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:

drm/amdgpu: Fix a null pointer access when the smc_rreg pointer is NULL

In certain types of chips, such as VEGA20, reading the amdgpu_regs_smc file could result in an abnormal null pointer access when the smc_rreg pointer is NULL. Below are the steps to reproduce this issue and the corresponding exception log:

1. Navigate to the directory: /sys/kernel/debug/dri/0

2. Execute command: cat amdgpu_regs_smc

3. Exception Log::

[4005007.702554] BUG: kernel NULL pointer dereference, address: 0000000000000000

[4005007.702562] #PF: supervisor instruction fetch in kernel mode

[4005007.702567] #PF: error_code(0x0010) - not-present page

[4005007.702570] PGD 0 P4D 0

[4005007.702576] Oops: 0010 [#1] SMP NOPTI

[4005007.702581] CPU: 4 PID: 62563 Comm: cat Tainted: G OE 5.15.0-43-generic #46-Ubunt u

[4005007.702590] RIP: 0010:0x0

[4005007.702598] Code: Unable to access opcode bytes at RIP 0xffffffffffffffd6.

[4005

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 >= 0, < 4.19.300 Affected

Frequently Asked Questions

What is CVE-2023-52817?

CVE-2023-52817 is a medium-severity vulnerability affecting linux linux_kernel. It was published on May 21, 2024 and has a CVSS 3.1 base score of 5.5 (MEDIUM).

How severe is CVE-2023-52817?

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-2023-52817?

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-2023-52817?

CyberStrike's AI-powered security agents can automatically detect CVE-2023-52817 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.