Vulnerability in Kernel: Use-after-free after 802.3ad slave unbind
Summary
GSD-2022-1004604: net: bonding: fix use-after-free after 802.3ad slave unbind. Affects Kernel versions >= 0622cab0341cac6b30da177b0faa39fae0680e71, < 63b2fe509f69b90168a75e04e14573dccf7984e6. 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 manages communication between hardware and software. It provides essential functions and services for the system's operation. The bonding module in the Kernel allows multiple network interfaces to function as a single bonded interface, providing fault tolerance and load balancing. However, a vulnerability has been discovered in the bonding module that can lead to a use-after-free condition after unbinding a slave interface in the 802.3ad mode.
Vulnerability Detail
The use-after-free vulnerability in the bonding module occurs when a slave interface is unbound in the 802.3ad mode. This can result in a situation where the Kernel attempts to access freed memory, leading to potential crashes or privilege escalation attacks. The vulnerability was introduced in Kernel version 4.7 and has been fixed in version 5.10.129 by commit 63b2fe509f69b90168a75e04e14573dccf7984e6.
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. It is crucial to update the Kernel to the fixed version as soon as possible.
Conclusion
The use-after-free vulnerability in the bonding module of the Kernel can have severe consequences, including crashes and potential privilege escalation attacks. It is crucial to update the Kernel to version 5.10.129 or later to mitigate this vulnerability. For further support and assistance with vulnerability remediation, please contact DevNack.com.
See every vulnerability recorded for Kernel →
FAQ
The use-after-free vulnerability in the bonding module can lead to crashes or potential privilege escalation attacks. An attacker may be able to exploit this vulnerability to gain elevated privileges or disrupt the system's stability.
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 Vulert will analyze it for any known vulnerabilities, including this one.
No, this vulnerability affects the Kernel module itself and is not specific to any particular Linux distribution. However, the fix will need to be applied to the Kernel version used by your distribution.
At the time of this report, there are no known public exploits targeting this specific vulnerability. However, it is always recommended to apply security patches promptly to mitigate any potential risks.
No, updating the Kernel to the fixed version is the only known solution to mitigate the risk posed by this vulnerability. It is essential to apply the recommended update as soon as possible.
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.
