Critical OpenSSL Vulnerabilities in AlmaLinux 10: Security Update Required
Summary
ALSA-2026:1472: Important: openssl security update. Affects openssl versions < 1:3.5.1-7.el10_1.alma.1. Fixed in 1:3.5.1-7.el10_1.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, along with a comprehensive general-purpose cryptography library. It is essential for secure communications over computer networks. The recent vulnerabilities discovered in OpenSSL can lead to severe security risks, including arbitrary code execution and denial of service, making it crucial for users to address these issues promptly.
Vulnerability Detail
The vulnerabilities in OpenSSL stem from various flaws, including arbitrary code execution through crafted PKCS#12 files, remote code execution via oversized Initialization Vectors in CMS parsing, and denial of service due to NULL pointer dereference in QUIC protocol handling. These vulnerabilities can lead to significant security breaches, allowing attackers to execute malicious code, disrupt services, or compromise data integrity.
How To Fix
Minimum fixed version
1:3.5.1-7.el10_1.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, users can limit the exposure of their systems by restricting access to services that utilize OpenSSL until the packages are updated. Additionally, monitoring logs for unusual activity can help mitigate potential attacks.
Conclusion
The recent OpenSSL vulnerabilities pose serious risks to systems using AlmaLinux 10. It is imperative for users to update their OpenSSL packages to the latest patched version to mitigate these risks. By following the provided steps and utilizing tools like Vulert, users can ensure their applications remain secure.
See every vulnerability recorded for openssl →
FAQ
OpenSSL is a toolkit for implementing SSL and TLS protocols, providing cryptographic functions for secure communications.
The vulnerabilities can lead to arbitrary code execution, denial of service, and data integrity issues, posing significant security threats.
You can use the Vulert playground at Vulert Scanner to check if your application is affected by these vulnerabilities without needing to sign up.
If immediate updates are not possible, consider restricting access to services using OpenSSL and monitoring for suspicious activity.
Detailed information about the vulnerabilities can be found on the respective CVE pages linked in the advisory.
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