Out-of-Bounds Read Vulnerability in Linux Kernel
Summary
UVI-2021-1000921: net: qrtr: fix OOB Read in qrtr_endpoint_post. Affects Kernel versions >= 194ccc88297ae78d0803adad83c6dcc369787c9e, < 26b8d10703a9be45d6097946b2b4011f7dd2c56f. 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 Linux 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. It is widely used in various devices, including servers, desktops, and embedded systems. The qrtr module in the Linux Kernel is used for communication between Qualcomm processors and remote devices. However, a vulnerability has been discovered in the qrtr_endpoint_post function, which can lead to an out-of-bounds read.
Vulnerability Detail
The vulnerability in the qrtr_endpoint_post function allows an attacker to read beyond the bounds of a buffer, potentially exposing sensitive information or causing a denial-of-service condition. This vulnerability was introduced in version 4.15 of the Linux Kernel and was fixed in version 5.4.128. The impact and attack plausibility of this vulnerability have not been proven yet.
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 known workaround for this vulnerability at the moment.
Conclusion
In conclusion, the out-of-bounds read vulnerability in the qrtr_endpoint_post function of the Linux Kernel can potentially lead to information disclosure or a denial-of-service condition. It is recommended to update the Linux Kernel to version 5.4.128 or later to mitigate this vulnerability. For further support on vulnerability remediation, please contact DevNack.com.
See every vulnerability recorded for Kernel →
FAQ
The qrtr module in the Linux Kernel is responsible for facilitating communication between Qualcomm processors and remote devices.
An out-of-bounds read vulnerability occurs when a program accesses memory outside the bounds of an allocated buffer, potentially leading to information disclosure or a crash.
The impact of this vulnerability is not yet proven, but it could potentially expose sensitive information or cause a denial-of-service condition.
You can use the Vulert Playground (https://vulert.com/scanner) to check if your system is affected by this vulnerability. Simply upload your package-lock.json file and it will provide real-time alerts for open-source vulnerabilities.
You can find more information about this vulnerability in the Open Source Vulnerability database maintained by the Cloud Security Alliance. The specific entry for this vulnerability can be found at: https://github.com/cloudsecurityalliance/gsd-database/blob/main/2021/1000xxx/UVI-2021-1000921.json
Related vulnerabilities
Recent vulnerabilities recorded for Kernel.
