Moderate: python3.11-cryptography security update
Summary
ALSA-2024:2337: Moderate: python3.11-cryptography security update. Affects python3.11-cryptography versions < 37.0.2-6.el9. Fixed in 37.0.2-6.el9. How to fix ↓
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Background
The python3.11-cryptography package is a part of the AlmaLinux 9 ecosystem. It includes the Python Cryptographic Authority's (PyCA's) cryptography library, which offers cryptographic primitives and recipes for Python developers. This library is widely used for implementing secure communication, encryption, and decryption in Python applications.
Vulnerability Detail
The vulnerability identified in the python3.11-cryptography package is a NULL-dereference issue when loading PKCS7 certificates. This vulnerability is tracked as CVE-2023-49083. An attacker could exploit this vulnerability to cause a denial-of-service (DoS) condition by providing a specially crafted PKCS7 certificate. The impact of this vulnerability can range from service disruption to complete system unavailability.
How To Fix
Minimum fixed version
37.0.2-6.el9
This is the first release that contains the fix.
sudo dnf update python3.11-cryptographyTip — Not sure which version your app runs? Vulert can match this fix to it. Scan free →
Conclusion
The python3.11-cryptography package in AlmaLinux 9 is affected by a moderate-level vulnerability (CVE-2023-49083) that could lead to a denial-of-service condition. It is crucial to update the package to version 37.0.2-6.el9 or later to address this vulnerability. For further assistance or support in vulnerability remediation, you can reach out to DevNack.com.
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FAQ
The vulnerability can lead to a denial-of-service (DoS) condition, potentially causing service disruption or system unavailability.
You can use the Vulert Playground at Vulert Scanner to check if your application is affected by this vulnerability. Simply upload your manifest file (e.g., package-lock.json) to the playground, and it will provide real-time alerts for open-source vulnerabilities, including this one.
At the time of this advisory, there are no known public exploits targeting this vulnerability. However, it is crucial to apply the recommended security update to mitigate the risk.
An attacker would need the ability to provide a specially crafted PKCS7 certificate to trigger the NULL-dereference issue. This typically requires interaction with the targeted system or application.
As of now, there are no known workarounds or temporary measures available to mitigate this vulnerability. It is recommended to prioritize the update process to ensure the security of your system.
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