Vulnerability in swiotlb-xen: Ensure Well-formed XENMEM_exchange Requests
Summary
GSD-2021-1001703: swiotlb-xen: ensure to issue well-formed XENMEM_exchange requests. Affects Kernel versions < 2e4a7695c8df896ad325610a87a776f185c62ee1. 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 swiotlb-xen package is a component of the Linux Kernel ecosystem. It provides support for the software I/O Translation Lookaside Buffer (swiotlb) in Xen virtualization environments. The swiotlb facilitates efficient memory management for I/O operations in Xen. However, a vulnerability has been discovered in swiotlb-xen that could potentially lead to security issues.
Vulnerability Detail
The vulnerability in swiotlb-xen arises from the improper handling of XENMEM_exchange requests. These requests are used to exchange memory pages between the swiotlb and Xen hypervisor. Due to a coding error, the swiotlb-xen package may issue malformed XENMEM_exchange requests, which can result in various security risks. The impact and attack plausibility of this vulnerability have not been proven yet. However, it is crucial to address this issue to prevent any potential security breaches.
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 swiotlb-xen, which involves the improper handling of XENMEM_exchange requests, can potentially lead to security breaches. It is crucial to update the Linux Kernel to version v5.14.11 or later to mitigate this vulnerability. For further support on vulnerability remediation, please contact DevNack.com.
See every vulnerability recorded for Kernel →
FAQ
swiotlb-xen is a component of the Linux Kernel ecosystem that provides support for the software I/O Translation Lookaside Buffer (swiotlb) in Xen virtualization environments. It facilitates efficient memory management for I/O operations in Xen.
The impact of this vulnerability is not yet proven. However, if exploited, it could potentially lead to security breaches and compromise the integrity and confidentiality of the system.
To fix this vulnerability, update the Linux Kernel to version v5.14.11 or later. This update ensures that well-formed XENMEM_exchange requests are issued by the swiotlb-xen package.
No specific workaround has been provided for this vulnerability. It is recommended to update the Linux Kernel to the latest version as a preventive measure.
For more details about this vulnerability, refer to the source link provided in the database specific information section of the vulnerability report.
Related vulnerabilities
Recent vulnerabilities recorded for Kernel.
