OpenSSH Security Update - Remote Code Execution
Summary
ALSA-2024:4457: Moderate: openssh security update. Affects openssh versions < 8.7p1-38.el9_4.4. Fixed in 8.7p1-38.el9_4.4. How to fix ↓
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Background
OpenSSH is an SSH protocol implementation used by various Linux, UNIX, and similar operating systems. It provides essential files for both the OpenSSH client and server. This vulnerability affects the AlmaLinux 9 ecosystem.
Vulnerability Detail
The vulnerability (CVE-2024-6409) in OpenSSH allows for possible remote code execution due to a race condition in signal handling. This can be exploited by attackers to execute arbitrary code on affected systems. The impact and severity of this vulnerability can vary depending on the specific environment and usage of OpenSSH.
How To Fix
Minimum fixed version
8.7p1-38.el9_4.4
This is the first release that contains the fix.
sudo dnf update opensshTip — Not sure which version your app runs? Vulert can match this fix to it. Scan free →
Workaround
There is no specific workaround mentioned for this vulnerability. It is crucial to apply the recommended fix by updating the openssh package to the patched version.
Conclusion
OpenSSH is prone to a race condition vulnerability that could result in remote code execution. It is crucial to update the openssh package to the patched version to mitigate the risk of exploitation. Regularly monitoring for vulnerabilities using tools like Vulert can help ensure the security of your software.
See every vulnerability recorded for openssh →
FAQ
OpenSSH is an SSH protocol implementation used for secure remote login and file transfer between systems.
The vulnerability allows for possible remote code execution, which can lead to unauthorized access and potential compromise of affected systems.
This vulnerability affects systems running AlmaLinux 9 with the openssh package installed.
You can use the Vulert Playground (https://vulert.com/scanner) to check if your system is affected by this vulnerability. Simply provide the manifest file (e.g., package-lock.json) of your application, and Vulert will analyze it for open-source vulnerabilities in real-time.
At the time of this advisory, there are no known public exploits targeting this specific vulnerability. However, it is essential to apply the recommended fix to mitigate the risk.
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