Moderate Security Vulnerability in ncurses Package: Buffer Overflow Risk
Summary
ALSA-2026:5913: Moderate: ncurses security update. Affects ncurses versions < 6.4-15.20240127.el10_1. Fixed in 6.4-15.20240127.el10_1. How to fix ↓
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Background
The ncurses library provides terminal-independent methods for updating character screens, optimizing performance for various terminal types. It includes utilities such as tic (terminfo compiler), infocmp (decompiler), and tools for terminal capabilities. This package is widely used in applications that require text-based user interfaces, making it crucial for system functionality.
Vulnerability Detail
The ncurses package has a buffer overflow vulnerability identified as CVE-2025-69720. This vulnerability arises from improper handling of input data, which could allow an attacker to execute arbitrary code on the affected system. The implications of this vulnerability are significant, as it could lead to unauthorized access or control over the system, potentially compromising sensitive data and system integrity.
How To Fix
Minimum fixed version
6.4-15.20240127.el10_1
This is the first release that contains the fix.
sudo dnf update ncursesTip — 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 use of the ncurses library in applications that are vulnerable until the package is updated. However, the most effective solution is to apply the patch as soon as possible.
Conclusion
The ncurses package has a moderate security vulnerability that could lead to severe consequences if left unaddressed. It is essential to update to the latest patched version to mitigate risks. Utilizing tools like Vulert can help monitor for such vulnerabilities in real-time.
See every vulnerability recorded for ncurses →
FAQ
A buffer overflow vulnerability occurs when a program writes more data to a buffer than it can hold, which can lead to unexpected behavior, including the execution of malicious code.
You can use the Vulert platform to monitor and alert for open-source vulnerabilities in your software. Simply upload your manifest file like package-lock.json to check for vulnerabilities.
Failing to address this vulnerability could allow attackers to execute arbitrary code, potentially leading to unauthorized access, data breaches, or system compromise.
While the best course of action is to update the package, you can limit the use of affected applications as a temporary workaround.
For detailed information, refer to the CVE page for CVE-2025-69720, which provides insights into the vulnerability's impact and technical details.
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