Critical Buffer Overflow Vulnerability in radvd Package
Summary
DEBIAN-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 ↓
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 radvd (Router Advertisement Daemon) is a software utility used in IPv6 networks to advertise the presence of routers. It allows devices on a local network to discover routers and obtain necessary configuration information. The package is crucial for maintaining network connectivity and ensuring proper routing of packets. However, it has been found to be vulnerable to a buffer overflow issue that can be exploited by remote attackers.
Vulnerability Detail
Buffer overflow in the process_ra function in the router advertisement daemon (radvd) before version 1.8.2 allows remote attackers to execute arbitrary code or cause a denial of service (crash) via a negative value in a label_len value. This vulnerability poses significant risks as it can lead to unauthorized access and control over affected systems, potentially compromising sensitive data and network integrity.
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
As a temporary workaround, consider disabling the radvd service until the package can be updated. This can be done with the command:
sudo systemctl stop radvd' and 'sudo systemctl disable radvd
However, this may impact network functionality.
Conclusion
The radvd package has a critical buffer overflow vulnerability that can be exploited by remote attackers. It is essential to update to the patched version to protect your systems. Utilize tools like Vulert for ongoing monitoring of vulnerabilities in your software.
See every vulnerability recorded for radvd →
FAQ
The vulnerability is a buffer overflow that can be exploited by sending specially crafted packets to the radvd service.
You can use tools like Vulert to monitor and alert for open-source vulnerabilities in your software. Visit Vulert Scanner to check your application without any signup.
Exploitation of this vulnerability can lead to arbitrary code execution or denial of service, compromising system security and stability.
Yes, versions 1.8.2 and later have addressed this vulnerability. Always ensure you are running the latest version.
If immediate updates are not possible, consider disabling the radvd service as a temporary measure to mitigate risks.
References
Related vulnerabilities
Recent vulnerabilities recorded for radvd.
