Critical BPF Changes Packet Data Vulnerability in Linux Kernel
Summary
CVE-2024-58100: In the Linux kernel, the following vulnerability has been resolved: bpf: check changes_pkt_data property for extension programs When processing calls to global sub-programs, verifier decides whether to invalidate all pac... Affects linux versions 5.10.103-1 – 6.9.9-1. 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 Linux kernel is the core component of many operating systems, responsible for managing hardware and system resources. It provides essential services for all other parts of the operating system. This vulnerability affects multiple Debian versions of the Linux kernel, specifically concerning the BPF (Berkeley Packet Filter) subsystem, which is used for packet filtering and network monitoring.
Vulnerability Detail
In the Linux kernel, a vulnerability has been identified in the BPF subsystem related to the handling of the changes_pkt_data property for global sub-programs. When an extension program replaces a global sub-program, it must be compatible with the changes_pkt_data property of the sub-program being replaced. Failure to ensure this compatibility can lead to improper handling of packet pointers, potentially resulting in security issues such as data corruption or unauthorized access to sensitive information.
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
Currently, no specific workarounds are provided for this vulnerability. It is advisable to apply the patch as soon as it becomes available.
Conclusion
The vulnerability identified in the Linux kernel's BPF subsystem poses significant risks related to packet data handling. It is crucial for users to update their systems to the patched version to ensure security and stability. Utilizing tools like Vulert can help in monitoring and managing vulnerabilities effectively.
See every vulnerability recorded for linux →
FAQ
The vulnerability involves the BPF subsystem in the Linux kernel, specifically related to the changes_pkt_data property when replacing global sub-programs.
The vulnerability affects Debian versions 11, 12, and 13 of the Linux kernel.
If exploited, this vulnerability could lead to data corruption or unauthorized access to sensitive information due to improper handling of packet pointers.
You can use Vulert, which monitors and alerts for open-source vulnerabilities in real-time. Visit Vulert Scanner to check if your application is affected without requiring any signup.
Yes, a patch is available for Debian 13 in version 6.12.25-1 or later. It is recommended to update to this version to mitigate the vulnerability.
Related vulnerabilities
Recent vulnerabilities recorded for linux.
