Concurrent Data Race in ICMP Echo Enable Probe - Linux Kernel Vulnerability
Summary
CVE-2022-49633: In the Linux kernel, the following vulnerability has been resolved: icmp: Fix data-races around sysctl_icmp_echo_enable_probe. Affects linux versions < 5.18.14-1. Fixed in 5.18.14-1. 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 a core component of the operating system that manages hardware and system resources. It provides essential services for all other parts of the system, including process management, memory management, and device control. The kernel is crucial for system stability and performance. This specific vulnerability affects the ICMP (Internet Control Message Protocol) functionality, which is used for network diagnostics and error reporting. The vulnerability arises from a data race condition in the sysctl_icmp_echo_enable_probe, which can lead to inconsistent behavior during concurrent read and write operations.
Vulnerability Detail
The vulnerability identified as CVE-2022-49633 is a data race condition in the Linux kernel's handling of the sysctl_icmp_echo_enable_probe. This issue occurs when multiple threads attempt to read and modify the same variable simultaneously without proper synchronization. As a result, the integrity of the data being read can be compromised, potentially leading to unexpected behavior or system crashes. This vulnerability can be exploited by an attacker to manipulate ICMP echo requests, impacting network diagnostics and potentially leading to denial-of-service conditions.
How To Fix
Minimum fixed version
5.18.14-1
This is the first release that contains the fix.
sudo apt-get install --only-upgrade linuxTip — Not sure which version your app runs? Vulert can match this fix to it. Scan free →
Workaround
Currently, there are no specific workarounds mentioned for this vulnerability. The best course of action is to apply the available patch by updating to the fixed version of the Linux kernel.
Conclusion
CVE-2022-49633 is a significant vulnerability in the Linux kernel that can lead to data race conditions affecting network diagnostics. It is crucial for users to update their systems to the patched version to mitigate potential risks. Utilizing tools like Vulert can further enhance your security posture by monitoring for vulnerabilities in real-time.
See every vulnerability recorded for linux →
FAQ
CVE-2022-49633 is a vulnerability in the Linux kernel that involves a data race condition in the sysctl_icmp_echo_enable_probe, affecting the handling of ICMP echo requests.
This vulnerability can lead to inconsistent behavior in network diagnostics and may allow an attacker to manipulate ICMP echo requests, potentially causing denial-of-service conditions.
If you are using an affected version of the Linux kernel (prior to 5.18.14-1), your system may be vulnerable. You can check your system's kernel version using the command 'uname -r'.
The best way to protect your system is to update the Linux kernel to the patched version 5.18.14-1 or later. Regularly updating your system can help mitigate vulnerabilities.
Yes, Vulert can monitor and alert you in real-time for open-source vulnerabilities in your software. You can use the Vulert playground to check if your application is affected by this vulnerability without requiring any installation.
Related vulnerabilities
Recent vulnerabilities recorded for linux.
