Critical Use After Free Vulnerability in Vim Package
Summary
ALPINE-CVE-2023-5535: Use After Free in GitHub repository vim/vim prior to v9.0.2010. 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 due to its powerful features and extensibility. However, like any software, it can be susceptible to vulnerabilities that may compromise its integrity and security. The recent vulnerability identified as CVE-2023-5535 affects multiple versions of the Vim package in Alpine Linux distributions, highlighting a significant security concern for users relying on this editor.
Vulnerability Detail
The vulnerability, identified as a Use After Free issue, originates from improper memory management within the Vim codebase. This flaw allows attackers to exploit the memory space of the application, potentially leading to arbitrary code execution or crashes. The ramifications of this vulnerability are severe, as it can compromise the security of the system running Vim, allowing unauthorized access to sensitive data or system control.
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, consider using alternative text editors that do not exhibit this vulnerability.
Conclusion
The Use After Free vulnerability in the Vim package poses a serious risk to users of Alpine Linux. It is crucial to update to the patched version to mitigate potential security threats. Users are encouraged to monitor their software for vulnerabilities using tools like Vulert to ensure ongoing security.
See every vulnerability recorded for vim →
FAQ
CVE-2023-5535 is a critical Use After Free vulnerability found in the Vim text editor, affecting multiple versions in Alpine Linux.
You can check your version of Vim by running 'vim --version' in the terminal. If it is below 9.0.2073-r0, it is vulnerable.
The vulnerability can lead to arbitrary code execution, crashes, or unauthorized access to sensitive data, posing a significant security risk.
Yes, you can use Vulert, which monitors and alerts for open-source vulnerabilities in your software by analyzing your manifest file.
You can use the Vulert playground at Vulert Scanner to check if your application is affected by this vulnerability without needing to sign up.
References
Related vulnerabilities
Recent vulnerabilities recorded for vim.
