Heap-based Buffer Overflow in Vim Package - CVE-2023-4738
Summary
ALPINE-CVE-2023-4738: Heap-based Buffer Overflow in GitHub repository vim/vim prior to 9.0.1848. 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. However, like any software, it can be vulnerable to security issues. The specific vulnerability in question, CVE-2023-4738, affects multiple versions of Vim in Alpine Linux distributions, exposing users to potential exploitation.
Vulnerability Detail
The vulnerability identified as CVE-2023-4738 is a heap-based buffer overflow that occurs in Vim versions prior to 9.0.1848. This flaw allows an attacker to exploit the buffer overflow, potentially leading to arbitrary code execution, data corruption, or system crashes. The issue arises from improper handling of memory allocation, which can be manipulated by specially crafted input, posing significant risks to system integrity and user data.
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 buffer overflow until the package is updated. However, the best course of action is to apply the patch as soon as possible.
Conclusion
CVE-2023-4738 represents a significant security risk for users of the Vim text editor in Alpine Linux. It is crucial to update to the patched versions to mitigate the risks associated with this vulnerability. Regular monitoring and timely updates are essential for maintaining software security.
See every vulnerability recorded for vim →
FAQ
CVE-2023-4738 is a heap-based buffer overflow vulnerability in the Vim text editor that can lead to arbitrary code execution.
Vim versions prior to 9.0.1848 are affected in Alpine Linux distributions.
You can use the Vulert playground at Vulert Scanner to check if your application is affected by this vulnerability without requiring any signup.
The CVSS score of CVE-2023-4738 is 7.8, indicating a high severity level.
If you cannot update Vim immediately, avoid using features that may trigger the vulnerability and monitor for updates.
References
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