Denial-of-Service Vulnerability in Logback Package: CVE-2023-6378
Summary
DEBIAN-CVE-2023-6378: A serialization vulnerability in logback receiver component part of logback version 1.4.11 allows an attacker to mount a Denial-Of-Service attack by sending poisoned data. Affects logback versions < 1:1.2.11-5. Fixed in 1:1.2.11-5. How to fix ↓
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Background
Logback is a widely used logging framework for Java applications, known for its speed and flexibility. It serves as a successor to the popular log4j project and is designed to be a reliable logging solution for developers. The framework provides various logging capabilities, including configuration options and support for different logging formats. However, a recent vulnerability has been identified in the logback receiver component, which could allow attackers to exploit the system.
Vulnerability Detail
A serialization vulnerability in the logback receiver component of version 1.4.11 allows attackers to send specially crafted data, leading to a Denial-of-Service (DoS) attack. This vulnerability can cause the application to become unresponsive, impacting availability and potentially leading to service disruptions. The issue arises from improper handling of serialized data, which can be exploited by malicious actors.
How To Fix
Minimum fixed version
1:1.2.11-5
This is the first release that contains the fix.
sudo apt-get install --only-upgrade logbackTip — Not sure which version your app runs? Vulert can match this fix to it. Scan free →
Workaround
As a temporary measure, you can limit access to the logback receiver component to trusted sources only. This can help mitigate the risk of exploitation until the package is updated. Additionally, consider implementing network-level security measures to filter out potentially malicious traffic.
Conclusion
The CVE-2023-6378 vulnerability in the logback package poses a significant risk of Denial-of-Service attacks. It is crucial for users to update to the patched version to safeguard their applications. Implementing security measures and monitoring tools like Vulert can further enhance protection against such vulnerabilities.
See every vulnerability recorded for logback →
FAQ
CVE-2023-6378 is a vulnerability in the logback package that allows attackers to perform Denial-of-Service attacks by sending poisoned data.
The vulnerability affects logback versions prior to 1.2.11-5.
You can use the Vulert playground at Vulert Scanner to check if your application is affected by this vulnerability without needing to sign up.
The vulnerability can lead to Denial-of-Service attacks, causing applications to become unresponsive and affecting service availability.
Yes, a patched version of logback (1:1.2.11-5) is available. Updating to this version will resolve the vulnerability.
References
Related vulnerabilities
Recent vulnerabilities recorded for logback.
