tipc: skb_linearize the head skb when reassembling msgs
Summary
UVI-2021-1000690: tipc: skb_linearize the head skb when reassembling msgs. Affects Kernel versions >= 45c8b7b175ceb2d542e0fe15247377bf3bce29ec, < 5489f30bb78ff0dafb4229a69632afc2ba20765c. 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 provides core functionalities and interfaces between hardware and software. It manages system resources, facilitates communication between processes, and ensures security and stability. The vulnerability in focus affects the tipc module, which is responsible for providing transparent inter-process communication between nodes in a cluster. The vulnerability allows an attacker to exploit a flaw in the message reassembly process, potentially leading to various security issues.
Vulnerability Detail
The vulnerability arises from a failure to properly linearize the head skb (socket buffer) when reassembling messages in the tipc module. This can result in memory corruption or information disclosure. An attacker could potentially craft malicious messages to trigger this vulnerability and execute arbitrary code, escalate privileges, or cause a denial-of-service condition. 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 available for this vulnerability at the moment.
Conclusion
The vulnerability in the tipc module of the Linux Kernel can potentially lead to severe security issues if exploited. It is crucial for users to update their Kernel to the latest stable version to mitigate the risk. For further support and assistance in vulnerability remediation, please contact DevNack.com.
See every vulnerability recorded for Kernel →
FAQ
The impact of this vulnerability can vary depending on the attacker's capabilities and intentions. It could potentially lead to arbitrary code execution, privilege escalation, or denial-of-service attacks.
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 the Vulert Playground will analyze it for any known vulnerabilities.
There is currently no evidence of this vulnerability being exploited in the wild. However, it is always recommended to apply security patches and updates to mitigate potential risks.
Unfortunately, there are no known mitigations available for this vulnerability. It is crucial to update your Kernel to the latest stable version as soon as possible.
You can find more information about this vulnerability in the official Linux Kernel repository (https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/) and the vulnerability database maintained by the Cloud Security Alliance (https://github.com/cloudsecurityalliance/gsd-database).
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.
