netlabel: Out-of-Bounds Memory Access in Linux Kernel
Summary
GSD-2022-1002001: netlabel: fix out-of-bounds memory accesses. Affects Kernel versions >= 446fda4f26822b2d42ab3396aafcedf38a9ff2b6, < 5578de4834fe0f2a34fedc7374be691443396d1f. 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 Linux Kernel is a widely used open-source operating system kernel that serves as the foundation for various Linux distributions. It provides essential functionality for managing system resources, device drivers, and security features. The netlabel subsystem within the Linux Kernel is responsible for implementing network labeling, which enables the enforcement of security policies based on network traffic attributes.
Vulnerability Detail
The netlabel subsystem in the Linux Kernel is affected by an out-of-bounds memory access vulnerability. This vulnerability allows an attacker to access memory beyond the boundaries of an allocated buffer, potentially leading to information disclosure, privilege escalation, or denial of service. The vulnerability was introduced in version v2.6.19 of the Linux Kernel and was fixed in version v5.0.
How To Fix
No fixed version is published for this vulnerability.
To fix this vulnerability, it is recommended to update the Linux Kernel to version v5.0 or later. The fix for this vulnerability was implemented in commit 5578de4834fe0f2a34fedc7374be691443396d1f. Updating the kernel will ensure that the netlabel subsystem no longer suffers from out-of-bounds memory accesses.
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 essential to update the Linux Kernel to the fixed version to mitigate the risk of exploitation.
Conclusion
The netlabel subsystem in the Linux Kernel is susceptible to an out-of-bounds memory access vulnerability. To mitigate the risk, it is recommended to update the Linux Kernel to version v5.0 or later. No known workarounds exist for this vulnerability. If you have further questions or need assistance with vulnerability remediation, please contact DevNack.com.
See every vulnerability recorded for Kernel →
FAQ
The vulnerability could potentially allow an attacker to access sensitive information, escalate privileges, or cause a denial of service.
You can use Vulert's 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 alert you if the vulnerability is present.
No, the vulnerability was introduced in version v2.6.19 and fixed in version v5.0. Therefore, versions prior to v2.6.19 and versions equal to or later than v5.0 are not affected.
Yes, this vulnerability can be exploited remotely if an attacker can send malicious network traffic to the affected system.
There is no evidence of this vulnerability being actively exploited at the moment. However, it is crucial to apply the fix to ensure the security of your system.
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.
Follow Vulert in Google
Get more Vulert vulnerability and dependency-security updates in Google Search and AI results.