Critical Use After Free Vulnerability in Vim Package
Summary
DEBIAN-CVE-2023-4733: Use After Free in GitHub repository vim/vim prior to 9.0.1840. Affects vim versions < 2:9.0.1894-1. Fixed in 2:9.0.1894-1. How to fix ↓
Check if this vulnerability affects your application
Upload a manifest or SBOM and we'll show whether you're affected, plus every other risky package in the same scan.
No signup required · Results in about 60 seconds
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, including syntax highlighting, multi-level undo, and extensive plugin support. However, a recent vulnerability has been identified that affects versions of Vim prior to 9.0.1840, which could potentially lead to security issues if exploited.
Vulnerability Detail
The vulnerability identified as DEBIAN-CVE-2023-4733 is a Use After Free issue found in the Vim package. This flaw occurs when the program frees a memory location and then continues to use that memory, which can lead to unpredictable behavior, including crashes or the execution of arbitrary code. This vulnerability is particularly concerning as it can be exploited by attackers to gain unauthorized access or control over the affected system.
How To Fix
Minimum fixed version
2:9.0.1894-1
This is the first release that contains the fix.
sudo apt-get install --only-upgrade vimTip — Not sure which version your app runs? Vulert can match this fix to it. Scan free →
Workaround
Currently, there are no specific workarounds recommended for this vulnerability. The best course of action is to update to the patched version as soon as possible.
Conclusion
The Use After Free vulnerability in the Vim package poses significant security risks for users. It is crucial to update to the patched version 2:9.0.1894-1 to mitigate these risks. Regular monitoring of vulnerabilities using tools like Vulert can help maintain the security of your applications.
See every vulnerability recorded for vim →
FAQ
A Use After Free vulnerability occurs when a program continues to use a memory location after it has been freed, potentially leading to crashes or arbitrary code execution.
You can check your version of Vim by running 'vim --version' in your terminal. If your version is prior to 9.0.1840, it is affected.
No, it is not safe to continue using an affected version as it may expose your system to security risks. It is recommended to update to the patched version immediately.
If you cannot update immediately, consider limiting the use of Vim for sensitive tasks until you can apply the update.
Vulert monitors and alerts for open-source vulnerabilities in your software by analyzing a manifest file like package-lock.json, providing real-time insights without requiring code access.
References
Related vulnerabilities
Recent vulnerabilities recorded for vim.
