Spectre V1 Gadget Vulnerability in dm ioctl
Summary
GSD-2022-1002478: dm ioctl: prevent potential spectre v1 gadget. Affects Kernel versions < 76c94651005f58885facf9c973007f5ea01ab01f. 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
Background
The dm ioctl vulnerability affects the Kernel package in the Linux ecosystem. The Kernel is the core component of the Linux operating system, responsible for managing system resources and providing an interface for applications to interact with the hardware. The dm ioctl vulnerability specifically impacts the ioctl function in the device mapper (dm) subsystem. The device mapper is a framework in the Kernel that allows for the creation of virtual block devices, such as logical volumes and snapshots. This vulnerability has the potential to be exploited as a Spectre V1 gadget.
Vulnerability Detail
The dm ioctl vulnerability is a potential Spectre V1 gadget. Spectre is a class of vulnerabilities that exploit speculative execution in modern processors. By manipulating the speculative execution process, an attacker can potentially access sensitive information. In the case of the dm ioctl vulnerability, an attacker could leverage this vulnerability to gain unauthorized access to sensitive data or execute arbitrary code. It is important to note that the actual impact and attack plausibility of this vulnerability have not yet been proven.
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 →
Workaround
There is no specific workaround mentioned for this vulnerability.
Conclusion
The dm ioctl vulnerability in the Kernel's device mapper (dm) subsystem is a potential Spectre V1 gadget. It is important to update the Kernel to version v4.9.311 or later to mitigate this vulnerability. For further support on vulnerability remediation, please contact DevNack.com.
See every vulnerability recorded for Kernel →
FAQ
The dm ioctl vulnerability is a potential Spectre V1 gadget in the Kernel's device mapper (dm) subsystem. It has the potential to be exploited to gain unauthorized access to sensitive data or execute arbitrary code.
A Spectre V1 gadget is a vulnerability that exploits speculative execution in modern processors. By manipulating the speculative execution process, an attacker can potentially access sensitive information.
No, the actual impact and attack plausibility of this vulnerability have not yet been proven.
To fix the dm ioctl vulnerability, it is recommended to update the Kernel to version v4.9.311 or later.
The updated Kernel source code can be downloaded from the official Linux Kernel repository: https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/
Related vulnerabilities
Recent vulnerabilities recorded for Kernel.
