Vulnerability in Kernel: Processor MMIO Stale Data
Summary
GSD-2022-1003197: x86/speculation/mmio: Add mitigation for Processor MMIO Stale Data. Affects Kernel versions < d74f4eb1ddf076a55ff0682a89e66af5c1974321. No fix is published. How to fix ↓
Check if this vulnerability affects your application
Upload a manifest or SBOM and we'll show whether you're affected, plus every other risky package in the same scan.
No signup required · Results in about 60 seconds
Habilume
Habit tracker with a companion that grows with you
Complete habits, earn Lume Points, and watch your Lume grow as you stay consistent.
Background
The Kernel is a critical component of the Linux operating system that acts as a bridge between the hardware and software layers. It provides essential functionalities and services to enable the proper functioning of the system. This vulnerability specifically affects the Kernel and is related to Processor MMIO Stale Data. MMIO (Memory-Mapped I/O) is a technique used by processors to communicate with devices by mapping their control registers to memory addresses. Stale data refers to outdated or incorrect information that may be present in these memory-mapped regions. Exploiting this vulnerability could lead to unauthorized access, data leakage, or system instability.
Vulnerability Detail
The vulnerability arises due to a lack of mitigation for Processor MMIO Stale Data in the x86/speculation/mmio module of the Kernel. Attackers may leverage this weakness to read or manipulate sensitive data stored in memory-mapped regions, potentially leading to information disclosure or unauthorized modifications. The impact and attack plausibility of this vulnerability have not been proven yet, but it is crucial to address it to ensure the security and stability of the system.
How To Fix
No fixed version is published for this vulnerability.
Tip — Not sure whether your app is affected? Vulert can check the versions your app actually runs. Scan free →
Conclusion
The vulnerability in the Kernel related to Processor MMIO Stale Data poses a potential risk of unauthorized access, data leakage, or system instability. To mitigate this risk, it is crucial to update the Linux Kernel to version v5.15.48 or later, which includes the necessary mitigation for this vulnerability. For further assistance or support in addressing this vulnerability, please contact DevNack.com.
See every vulnerability recorded for Kernel →
FAQ
The impact of this vulnerability could include unauthorized access to sensitive data, data leakage, or system instability.
You can use Vulert Playground (https://vulert.com/scanner) to check if your system is affected by this vulnerability. Vulert Playground allows you to analyze your application's manifest file, such as package-lock.json, and provides real-time alerts for open-source vulnerabilities.
At the time of writing, there are no known exploits for this vulnerability. However, it is essential to apply the recommended fix to mitigate the risk.
The exact attack vectors and remote exploitability of this vulnerability have not been proven yet. However, it is always advisable to keep systems up to date to address potential security vulnerabilities.
Currently, there is no known workaround for this vulnerability. It is recommended to update the Kernel to the latest version as a preventive measure.
Related vulnerabilities
Recent vulnerabilities recorded for Kernel.
Habilume
Habit tracker with a companion that grows with you
Complete habits, earn Lume Points, and watch your Lume grow as you stay consistent.
