Use-after-free vulnerability in netfilter
Summary
GSD-2022-1000833: netfilter: fix use-after-free in __nf_register_net_hook(). Affects Kernel versions >= 2420b79f8c18a75ee2417cace381f4604b9b4365, < 8b0142c4143c1ca297dcf2c0cdd045d65dae2344. 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 netfilter package is a component of the Linux Kernel that provides a framework for packet filtering and network address translation. It allows for the manipulation and filtering of network packets at various stages of the networking stack. This vulnerability affects the netfilter package in the Linux Kernel.
Vulnerability Detail
The vulnerability, identified as GSD-2022-1000833, is a use-after-free issue in the __nf_register_net_hook() function of the netfilter package. This vulnerability was introduced in version v4.14 of the Linux Kernel and was fixed in version v5.10.104. An attacker could potentially exploit this vulnerability to execute arbitrary code or cause a denial-of-service condition. The vulnerability arises from improper handling of network hooks, leading to a use-after-free scenario.
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
No specific workaround has been provided for this vulnerability.
Conclusion
The use-after-free vulnerability in the netfilter package of the Linux Kernel can be mitigated by updating to version v5.10.104 or later. It is recommended to promptly apply the necessary patch to ensure the security and stability of the system. For further support and assistance with vulnerability remediation, please contact DevNack.com.
See every vulnerability recorded for Kernel →
FAQ
Netfilter is a component of the Linux Kernel that provides packet filtering and network address translation capabilities.
A use-after-free vulnerability occurs when a program continues to use a memory region after it has been freed, leading to potential memory corruption and exploitation.
This vulnerability could allow an attacker to execute arbitrary code or cause a denial-of-service condition on a system running an affected version of the Linux Kernel.
You can use the Vulert Playground at Vulert Scanner to check if your system is affected by this vulnerability. Simply upload your package-lock.json file to the playground and it will provide real-time alerts for open-source vulnerabilities.
You can find more information about this vulnerability in the GSD database entry: https://github.com/cloudsecurityalliance/gsd-database/blob/main/2022/1000xxx/GSD-2022-1000833.json
Related vulnerabilities
Recent vulnerabilities recorded for Kernel.
