Vulnerability in Kernel package: sctp: use call_rcu to free endpoint
Summary
GSD-2022-1000018: sctp: use call_rcu to free endpoint. Affects Kernel versions >= d25adbeb0cdb860fb39e09cdd025e9cfc954c5ab, < 8873140f95d4977bf37e4cf0d5c5e3f6e34cdd3e. 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 Kernel package is a fundamental component of the Linux operating system, responsible for managing the system's core functionality. It provides an interface between the hardware and software layers, allowing applications to communicate with the underlying system resources. The sctp module within the Kernel package implements the Stream Control Transmission Protocol (SCTP), a transport layer protocol used for reliable and ordered message delivery. This vulnerability in the sctp module arises from improper handling of endpoint deallocation, potentially leading to security issues.
Vulnerability Detail
The vulnerability in the sctp module of the Kernel package involves the improper deallocation of endpoints. When an endpoint is freed, the current implementation directly invokes the kfree() function, which can lead to use-after-free vulnerabilities. An attacker could potentially exploit this vulnerability to execute arbitrary code or cause a denial-of-service condition. The impact and attack plausibility of this vulnerability have not been proven yet. The vulnerability was introduced in version v4.14 of the Linux Kernel and has been fixed in version v4.14.261 by commit 8873140f95d4977bf37e4cf0d5c5e3f6e34cdd3e.
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
In conclusion, the vulnerability in the sctp module of the Kernel package could potentially lead to security issues due to improper endpoint deallocation. It is recommended to update the Kernel package to version v4.14.261 or later to mitigate this vulnerability. For further support on vulnerability remediation, please contact DevNack.com.
See every vulnerability recorded for Kernel →
FAQ
The impact of this vulnerability is not yet proven, but it could potentially allow an attacker to execute arbitrary code 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. Vulert monitors and alerts in real-time for open-source vulnerabilities without requiring access to the code or installation.
No known exploit for this vulnerability has been reported at this time.
The recommended mitigation is to update the Kernel package to version v4.14.261 or later, which includes the fix for this vulnerability.
You can find more information about this vulnerability in the GSD-2022-1000018 JSON file available on the GitHub repository of the Cloud Security Alliance's GSD Database: https://github.com/cloudsecurityalliance/gsd-database/blob/main/2022/1000xxx/GSD-2022-1000018.json
Related vulnerabilities
Recent vulnerabilities recorded for Kernel.
