Critical Use After Free Vulnerability in Linux Kernel - CVE-2023-53432
Summary
CVE-2023-53432: In the Linux kernel, the following vulnerability has been resolved: firewire: net: fix use after free in fwnet_finish_incoming_packet() The netif_rx() function frees the skb so we can't dereference it to save the skb->le... 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 the Linux operating system, responsible for managing hardware resources and providing essential services to software applications. It is widely used in various environments, from servers to embedded systems. The kernel's stability and security are paramount, as vulnerabilities can lead to severe consequences, including system crashes and unauthorized access.
Vulnerability Detail
CVE-2023-53432 is a critical vulnerability in the Linux kernel that arises from a use-after-free condition in the firewire networking subsystem. Specifically, the issue occurs in the fwnet_finish_incoming_packet() function, where the netif_rx() function frees the socket buffer (skb) before it can be safely dereferenced. This flaw can lead to memory corruption, potentially allowing an attacker to execute arbitrary code or crash the system, posing significant risks to system integrity and security.
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, there are no specific workarounds available for this vulnerability. The best course of action is to apply the patch as soon as it is available.
Conclusion
CVE-2023-53432 represents a significant security risk within the Linux kernel, necessitating immediate attention from users and administrators. By updating to the patched versions, users can safeguard their systems against potential exploitation. Utilizing tools like Vulert can aid in monitoring and managing vulnerabilities effectively.
See every vulnerability recorded for linux →
FAQ
CVE-2023-53432 is a vulnerability in the Linux kernel that involves a use-after-free condition in the firewire networking subsystem.
The vulnerability can lead to memory corruption, allowing attackers to execute arbitrary code or crash the system.
You can use Vulert, which monitors open-source vulnerabilities in your software. Visit Vulert Scanner to check if your application is affected without requiring any signup.
Yes, patches are available for various Debian versions. Ensure to update to the specified patched versions to mitigate the risk.
While there are no specific workarounds, it is crucial to prioritize updating your system to the patched version as soon as possible to protect against potential exploits.
Related vulnerabilities
Recent vulnerabilities recorded for linux.
