Buffer Overflow Vulnerability in radvd Package - CVE-2011-3601
Summary
CVE-2011-3601: Buffer overflow in the process_ra function in the router advertisement daemon (radvd) before 1.8.2 allows remote attackers to execute arbitrary code or cause a denial of service (crash) via a negative value in a label_le... Affects radvd versions < 1:1.8-1.2. Fixed in 1:1.8-1.2. How to fix ↓
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Background
The radvd (Router Advertisement Daemon) is a crucial component in IPv6 networks, responsible for sending router advertisements to enable network devices to configure their IPv6 addresses automatically. It is widely used in various Linux distributions, including Debian. This package is designed to facilitate the automatic configuration of IPv6-enabled devices, ensuring seamless connectivity and communication within a network. However, the radvd package has been identified to have a significant vulnerability that could compromise its functionality and security.
Vulnerability Detail
CVE-2011-3601 is a buffer overflow vulnerability found in the process_ra function of the radvd package prior to version 1.8.2. This vulnerability arises from improper handling of the label_len value, which can be manipulated by remote attackers to introduce a negative value. This can lead to arbitrary code execution or a denial of service (DoS) condition, causing the application to crash. The vulnerability poses a severe risk as it can be exploited remotely, allowing attackers to gain control over affected systems or disrupt network services.
How To Fix
Minimum fixed version
1:1.8-1.2
This is the first release that contains the fix.
sudo apt-get install --only-upgrade radvdTip — Not sure which version your app runs? Vulert can match this fix to it. Scan free →
Workaround
If upgrading is not immediately possible, consider implementing network-level security measures such as firewalls to restrict access to the radvd service from untrusted sources. Additionally, monitor logs for any suspicious activity related to the radvd daemon.
Conclusion
The CVE-2011-3601 vulnerability in the radvd package poses significant risks to network security and stability. It is crucial for users to upgrade to the latest version to mitigate these risks. Additionally, utilizing tools like Vulert can help monitor and manage vulnerabilities effectively.
See every vulnerability recorded for radvd →
FAQ
CVE-2011-3601 is a buffer overflow vulnerability in the radvd package that allows remote attackers to execute arbitrary code or cause a denial of service.
You can use the Vulert platform to check if your application is affected by this vulnerability. Simply upload your manifest file like package-lock.json to monitor and alert for open-source vulnerabilities.
The risks include potential remote code execution and denial of service, which can compromise system integrity and disrupt network services.
Yes, upgrading to radvd version 1.8.2 or later mitigates the vulnerability.
Implement network security measures such as firewalls to restrict access to the radvd service and monitor for any suspicious activity.
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