Critical Vulnerabilities in Apache2 Package: USN-7639-1 Summary
Summary
USN-7639-1: apache2 vulnerabilities. Affects apache2 versions < 2.4.52-1ubuntu4.15. Fixed in 2.4.52-1ubuntu4.15. How to fix ↓
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Background
Apache2 is a widely used open-source web server software that enables the hosting of websites and web applications. It is known for its flexibility, security features, and extensive community support. However, recent vulnerabilities have been identified that could potentially compromise the security of systems running specific versions of Apache2.
Vulnerability Detail
The vulnerabilities discovered in Apache2 include improper handling of Content-Type response headers, incorrect request handling in the mod_proxy module, and issues with the mod_ssl module that could lead to HTTP response splitting attacks, session hijacking, and denial of service. These vulnerabilities stem from flaws in the server's code that allow remote attackers to exploit them, potentially leading to unauthorized access and resource consumption.
How To Fix
Minimum fixed version
2.4.52-1ubuntu4.15
This is the first release that contains the fix.
sudo apt-get install --only-upgrade apache2Tip — Not sure which version your app runs? Vulert can match this fix to it. Scan free →
Workaround
As a temporary workaround, you may consider disabling the affected modules or restricting access to the server until the update can be applied. However, this is not a permanent solution and should be followed by an update as soon as possible.
Conclusion
The vulnerabilities identified in the Apache2 package pose significant risks to web server security. It is crucial for users to update their systems to the patched versions to mitigate these risks. Regular monitoring and updates are essential to maintain the security of web applications.
See every vulnerability recorded for apache2 →
FAQ
The main vulnerabilities include improper handling of response headers, incorrect request handling in mod_proxy, and issues in mod_ssl that could lead to session hijacking and denial of service.
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Affected versions include Apache2 2.4.52-1ubuntu4.15, 2.4.58-1ubuntu8.7, and 2.4.63-1ubuntu1.1 across various Ubuntu distributions.
If immediate updates are not possible, consider disabling the affected modules or restricting server access as a temporary measure.
Detailed information can be found in the official Ubuntu security notices and the CVE entries associated with the vulnerabilities.
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