CVE-2022-2529: Denial of Service in Cloudflare GoFlow
Summary
CVE-2022-2529: Cloudflare GoFlow vulnerable to a Denial of Service in the sflow packet handling package in github.com/cloudflare/goflow. Affected versions are not published. No fix is published. How to fix ↓
Also tracked for
The same CVE-2022-2529 is tracked separately for each ecosystem and vendor. Its fix information is the same; the package and affected versions differ.
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Background
Cloudflare GoFlow is a package in the Go ecosystem that handles sflow packet handling. It is used for network traffic analysis and monitoring. The package provides functionality to parse and process sflow packets. However, a vulnerability has been discovered in the sflow packet handling package of GoFlow.
Vulnerability Detail
The vulnerability in Cloudflare GoFlow allows for a Denial of Service (DoS) attack. An attacker can exploit this vulnerability by sending specially crafted sflow packets to a vulnerable system. When the system receives these packets, it triggers a flaw in the packet handling code, leading to a crash or excessive resource consumption. This can result in the unavailability of the affected system, disrupting network traffic analysis and monitoring operations.
How To Fix
No fixed version is published for this vulnerability.
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Workaround
There is no known workaround for this vulnerability. It is necessary to update to the fixed version of the Cloudflare GoFlow package.
Conclusion
The Cloudflare GoFlow package is vulnerable to a Denial of Service (DoS) attack due to a flaw in the sflow packet handling code. Users are advised to update to version 3.4.4 or later of the package to mitigate the vulnerability. There are no known workarounds for this issue.
See every vulnerability recorded for github.com/cloudflare/goflow →
FAQ
The vulnerability can lead to a Denial of Service (DoS) attack, causing the affected system to become unavailable and disrupting network traffic analysis and monitoring operations.
You can use Vulert's playground at Vulert Scanner to check if your application is affected by this vulnerability. Simply upload your Gopkg.lock file to the playground, and it will alert you if your application is vulnerable.
Yes, a fix is available in version 3.4.4 or later of the Cloudflare GoFlow package. It is recommended to update to the latest version to mitigate the vulnerability.
No, there are no known workarounds for this vulnerability. Updating to the fixed version of the package is the only solution.
Yes, this vulnerability can be exploited remotely by sending specially crafted sflow packets to a vulnerable system.
