Heap-based Buffer Overflow in Vim: CVE-2023-1170 Vulnerability Overview
Summary
ALPINE-CVE-2023-1170: Heap-based Buffer Overflow in GitHub repository vim/vim prior to 9.0.1376. Affects vim versions < 9.0.1395-r0. Fixed in 9.0.1395-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, including syntax highlighting, multi-level undo, and extensive plugin support. However, like many software packages, Vim is susceptible to vulnerabilities that can compromise its integrity and user data. The specific vulnerability in question, CVE-2023-1170, affects multiple versions of Vim across various Alpine Linux distributions.
Vulnerability Detail
The vulnerability identified as CVE-2023-1170 is a heap-based buffer overflow that occurs in Vim prior to version 9.0.1376. This flaw can be exploited by an attacker to execute arbitrary code, potentially leading to unauthorized access to system resources or data corruption. The vulnerability arises from improper handling of memory allocation, which can allow an attacker to manipulate the program's execution flow. The CVSS score for this vulnerability is 6.6, indicating a moderate severity level.
How To Fix
Minimum fixed version
9.0.1395-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
If immediate updating is not feasible, users can mitigate the risk by avoiding the use of specific Vim features that may trigger the vulnerability, such as certain plugins or configurations that handle external data. However, this is not a permanent solution and updating is strongly recommended.
Conclusion
The CVE-2023-1170 vulnerability in Vim presents a significant risk due to its potential for arbitrary code execution. Users are strongly advised to update to the latest patched version to safeguard their systems. Regular monitoring for vulnerabilities using tools like Vulert can further enhance security.
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FAQ
CVE-2023-1170 is a heap-based buffer overflow vulnerability in Vim that can lead to arbitrary code execution.
You can check your Vim version by running 'vim --version' in the terminal. If it is below 9.0.1395-r0, it is vulnerable.
Exploitation of this vulnerability could allow attackers to execute arbitrary code, potentially leading to data loss or unauthorized access.
Yes, tools like Vulert can monitor your software for open-source vulnerabilities using just a manifest file, alerting you in real-time.
Detailed information can be found in the official CVE database or by visiting the vulnerability report at https://storage.googleapis.com/cve-osv-conversion/alpine/ALPINE-CVE-2023-1170.json.
References
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