Out-of-Bounds Access Vulnerability in ngIRCd: Critical Security Flaw
Summary
DEBIAN-CVE-2020-14148: The Server-Server protocol implementation in ngIRCd before 26~rc2 allows an out-of-bounds access, as demonstrated by the IRC_NJOIN() function. Affects ngircd versions < 26-1. Fixed in 26-1. How to fix ↓
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Background
ngIRCd is an Internet Relay Chat (IRC) server that allows users to communicate in real-time over the internet. It is designed to be lightweight and easy to configure, making it a popular choice for small to medium-sized communities. However, a recent vulnerability has been identified that affects its Server-Server protocol implementation, potentially compromising the security of the server and its users.
Vulnerability Detail
The vulnerability, identified as DEBIAN-CVE-2020-14148, arises from an out-of-bounds access issue in the IRC_NJOIN() function of ngIRCd versions prior to 26~rc2. This flaw could allow attackers to exploit the server, leading to unauthorized access or manipulation of data. The vulnerability is particularly concerning as it can be triggered during normal operations, making it a significant risk for users of affected versions.
How To Fix
Minimum fixed version
26-1
This is the first release that contains the fix.
sudo apt-get install --only-upgrade ngircdTip — Not sure which version your app runs? Vulert can match this fix to it. Scan free →
Workaround
As a temporary measure, users can restrict access to the ngIRCd server by implementing firewall rules that limit connections to trusted IP addresses only. This can help mitigate the risk of exploitation until the software is updated.
Conclusion
The out-of-bounds access vulnerability in ngIRCd poses a significant risk to users of the software. It is crucial to update to the latest patched version to ensure the security of your IRC server. Implementing temporary workarounds can help mitigate risks until the update is applied.
See every vulnerability recorded for ngircd →
FAQ
ngIRCd is an open-source Internet Relay Chat server that allows users to communicate in real-time over the internet.
The vulnerability allows for out-of-bounds access in the IRC_NJOIN() function, which could lead to unauthorized access or data manipulation.
You can check your version of ngIRCd by running 'ngircd --version' in the terminal. If it is below 26-1, it is affected.
Yes, you can use Vulert, which monitors and alerts for open-source vulnerabilities in your software using just a manifest file like package-lock.json.
Detailed information can be found in the Debian CVE database at https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2020-14148.json.
References
Related vulnerabilities
Recent vulnerabilities recorded for ngircd.
