Critical OpenSSL Vulnerabilities in AlmaLinux 10: Security and Performance Risks
Summary
ALSA-2026:67154: Important: openssl security, bug fix, and enhancement update. Affects openssl versions < 1:3.5.8-1.el10_2.alma.1. Fixed in 1:3.5.8-1.el10_2.alma.1. How to fix ↓
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Background
OpenSSL is a widely used toolkit that implements the Secure Sockets Layer (SSL) and Transport Layer Security (TLS) protocols, providing essential cryptographic functions for secure communications over networks. It is integral to many applications and services, ensuring data integrity and confidentiality. However, recent vulnerabilities have been identified that could compromise the security and performance of systems utilizing OpenSSL in AlmaLinux 10.
Vulnerability Detail
The vulnerabilities in OpenSSL include a denial of service due to unbounded memory growth in the QUIC server, potential double free errors when processing packets, heap buffer overflows, and invalid pointer dereferences. These issues can lead to service disruptions, data corruption, and unauthorized access to sensitive information. The vulnerabilities are identified by CVEs such as CVE-2026-14456, CVE-2026-14457, CVE-2026-18798, and others, each posing significant risks to systems relying on OpenSSL.
How To Fix
Minimum fixed version
1:3.5.8-1.el10_2.alma.1
This is the first release that contains the fix.
sudo dnf update opensslTip — Not sure which version your app runs? Vulert can match this fix to it. Scan free →
Workaround
As a temporary measure, you can limit the exposure of your OpenSSL services by configuring firewall rules to restrict access to the QUIC server, thereby reducing the risk of exploitation until the package is updated.
Conclusion
The identified vulnerabilities in OpenSSL for AlmaLinux 10 pose serious security and performance risks. It is essential to update to the latest patched version to protect your systems from potential exploits. Utilizing tools like Vulert can help in monitoring and managing vulnerabilities effectively.
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FAQ
The main vulnerabilities include denial of service, double free errors, heap buffer overflows, and invalid pointer dereferences, which can lead to service disruptions and data breaches.
You can use Vulert, which monitors and alerts for open-source vulnerabilities in real-time. By uploading your manifest file like package-lock.json, you can check for vulnerabilities without needing to access the code.
It is recommended to update your OpenSSL package to the latest patched version as soon as possible to mitigate the risks associated with the vulnerabilities.
While specific exploits may not be publicly available, the vulnerabilities pose significant risks, and it is crucial to update your software to prevent potential attacks.
Yes, Vulert allows you to monitor your application for open-source vulnerabilities in real-time using just a manifest file, making it easy to stay informed about potential risks.
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