Clearing prog->jited_len along prog->jited in bpf, arm64
Summary
GSD-2022-1002948: bpf, arm64: Clear prog->jited_len along prog->jited. Affects Kernel versions >= db496944fdaaf2a67d2f60529f5dc23abf809506, < 5c25a3040bc0486c41a7b63a1fb0de7cdb846ad7. 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 vulnerability affects the Kernel package in the Linux ecosystem. The Kernel is the core component of the operating system that manages system resources and provides an interface for applications to interact with the hardware. It is responsible for tasks such as process management, memory management, and device drivers. The vulnerability specifically impacts the bpf (Berkeley Packet Filter) subsystem on the arm64 architecture.
Vulnerability Detail
The vulnerability arises from a failure to clear the 'prog->jited_len' field along with the 'prog->jited' field in the bpf subsystem on arm64. This oversight can potentially lead to security issues. While the exact impact and attack plausibility have not been proven, it is crucial to address this vulnerability to ensure the integrity and security of the system. The vulnerability was introduced in version v4.16 of the Linux Kernel and has been fixed in version v5.17.15.
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 mentioned for this vulnerability.
Conclusion
The vulnerability in the bpf subsystem on arm64 architecture can potentially lead to security issues. It is crucial to update the Linux Kernel to version v5.17.15 or later to mitigate this vulnerability. For further support and assistance in vulnerability remediation, please contact DevNack.com.
See every vulnerability recorded for Kernel →
FAQ
The exact impact of this vulnerability is not yet proven. However, it has the potential to be exploited for security breaches, compromising the integrity and security of the system.
You can use the Vulert Playground at Vulert Scanner to check if your system is affected by this vulnerability. Simply upload your manifest file (e.g., package-lock.json) and Vulert will analyze it in real-time to identify any open-source vulnerabilities, including this one.
Yes, a patch has been released in version v5.17.15 of the Linux Kernel. It is recommended to update to this version or a later one to fix the vulnerability.
No specific temporary measures have been provided for this vulnerability. It is advisable to prioritize updating the Kernel to the fixed version as soon as possible.
You can find more information about this vulnerability in the Open Source Vulnerability Database (OSVDB) entry with ID GSD-2022-1002948. The link to the database entry is available in the references section of this report.
Related vulnerabilities
Recent vulnerabilities recorded for Kernel.
