Critical Use After Free Vulnerability in Vim Package
Summary
ALPINE-CVE-2023-4750: Use After Free in GitHub repository vim/vim prior to 9.0.1857. Affects vim versions < 9.0.2073-r0. Fixed in 9.0.2073-r0. How to fix ↓
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Background
Vim is a highly configurable text editor built to enable efficient text editing. It is widely used by developers and system administrators for its powerful features and extensibility. The Vim package in Alpine Linux is essential for users who require a robust editing tool in their development environment. However, it has been found to have a critical vulnerability that can lead to severe security implications.
Vulnerability Detail
The vulnerability identified as CVE-2023-4750 is a Use After Free issue in the Vim package prior to version 9.0.1857. This flaw allows an attacker to exploit memory management errors, potentially leading to arbitrary code execution. The vulnerability arises from improper handling of memory, which can be manipulated to execute malicious code, compromising the integrity and confidentiality of the system. The CVSS score for this vulnerability is 7.8, indicating a high severity level.
How To Fix
Minimum fixed version
9.0.2073-r0
This is the first release that contains the fix.
sudo apk add --upgrade vimTip — Not sure which version your app runs? Vulert can match this fix to it. Scan free →
Workaround
As a temporary workaround, users can avoid using features of Vim that may trigger the vulnerability until the package is updated. Additionally, running Vim in a restricted environment or using alternative text editors can mitigate the risk.
Conclusion
The Use After Free vulnerability in the Vim package poses significant risks to users of Alpine Linux. It is crucial to update to the latest patched version to safeguard against potential exploits. Users should remain vigilant and consider using tools like Vulert to monitor for vulnerabilities in their software.
See every vulnerability recorded for vim →
FAQ
CVE-2023-4750 is a Use After Free vulnerability found in the Vim package, which can lead to arbitrary code execution.
You can use Vulert's playground at Vulert Scanner to check if your application is affected by this vulnerability without requiring any signup.
The CVSS score for this vulnerability is 7.8, indicating a high severity level.
You can update the Vim package using the command 'apk add --update vim=<version>' for your specific Alpine version.
If immediate updating is not possible, consider using alternative text editors or restricting the use of Vim features that may trigger the vulnerability.
References
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