Heap-based Buffer Overflow in Vim: Critical Vulnerability Detected
Summary
ALPINE-CVE-2022-0943: Heap-based Buffer Overflow occurs in vim in GitHub repository vim/vim prior to 8.2.4563. Affects vim versions < 8.2.4619-r0. Fixed in 8.2.4619-r0. 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 critical vulnerability has been identified in Vim versions prior to 8.2.4619, which exposes users to potential security risks.
Vulnerability Detail
The vulnerability, identified as CVE-2022-0943, is a heap-based buffer overflow that occurs in Vim prior to version 8.2.4619. This flaw can be exploited by attackers to execute arbitrary code, potentially leading to unauthorized access or data corruption. The issue arises from improper handling of memory, which can be triggered by specially crafted input, making it a significant risk for users who process untrusted data.
How To Fix
Minimum fixed version
8.2.4619-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 processing untrusted input or disable features that may trigger the vulnerability until the update is applied.
Conclusion
The heap-based buffer overflow vulnerability in Vim poses a significant risk to users, allowing for potential arbitrary code execution. It is crucial to update to the patched version 8.2.4619 or later to mitigate this risk. Additionally, utilizing tools like Vulert can help monitor and manage vulnerabilities in your software effectively.
See every vulnerability recorded for vim →
FAQ
CVE-2022-0943 is a critical vulnerability in Vim that allows for a heap-based buffer overflow, potentially leading to arbitrary code execution.
You can check your Vim version by running 'vim --version' in the terminal. If it is below 8.2.4619, it is vulnerable.
Failure to address this vulnerability may result in unauthorized access to your system, data corruption, or other malicious activities.
Yes, you can use Vulert, which monitors and alerts for open-source vulnerabilities in your software using just a manifest file like package-lock.json.
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.
