Critical Vulnerabilities in Apache HTTP Server (httpd) - Important Security Update
Summary
ALSA-2026:34109: Important: httpd security, bug fix, and enhancement update. Affects httpd versions < 2.4.63-13.el10_2.4. Fixed in 2.4.63-13.el10_2.4. How to fix ↓
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Background
The Apache HTTP Server, commonly referred to as httpd, is a widely used open-source web server known for its performance, flexibility, and extensibility. It serves web content and applications to users and is a critical component of many web infrastructures. However, vulnerabilities in httpd can lead to severe security risks, including unauthorized access, denial of service, and data breaches.
Vulnerability Detail
This vulnerability arises from multiple security flaws within the Apache HTTP Server, including an incomplete fix for CVE-2023-38709, NULL pointer dereference, heap-based buffer overflows, and denial of service via crafted regular expressions. These vulnerabilities can be exploited by attackers to crash the server, execute arbitrary code, or bypass security mechanisms, posing significant risks to web applications and their users.
How To Fix
Minimum fixed version
2.4.63-13.el10_2.4
This is the first release that contains the fix.
sudo dnf update httpdTip — Not sure which version your app runs? Vulert can match this fix to it. Scan free →
Workaround
As a temporary measure, you can restrict access to the server or disable specific modules that are known to be vulnerable until the update is applied. However, this is not a long-term solution and should only be used as a stopgap.
Conclusion
The Apache HTTP Server has critical vulnerabilities that require immediate attention. Updating to the latest patched version is essential to protect your web applications from potential attacks. Utilize tools like Vulert to monitor your software for vulnerabilities and ensure a secure environment.
See every vulnerability recorded for httpd →
FAQ
The vulnerabilities can lead to server crashes, unauthorized access, and potential data breaches, affecting the integrity and availability of web applications.
You can use the Vulert platform to monitor and alert for open-source vulnerabilities in your software. Visit Vulert Scanner to check if your application is affected without requiring any signup.
If immediate updates are not possible, consider implementing temporary workarounds such as restricting access or disabling vulnerable modules.
Yes, the vulnerabilities have been documented, and there are known exploits that attackers may use to compromise affected systems.
It is advisable to regularly check for updates and security advisories for all software components, especially those exposed to the internet.
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