Critical Use After Free Vulnerability in Vim Package
Summary
UBUNTU-CVE-2022-2862: Use After Free in GitHub repository vim/vim prior to 9.0.0221. Affects vim versions < 2:8.2.3995-1ubuntu2.11. Fixed in 2:8.2.3995-1ubuntu2.11. 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. The specific vulnerability, identified as CVE-2022-2862, affects multiple versions of Vim, particularly those prior to version 9.0.0221, which can lead to severe security risks if not addressed.
Vulnerability Detail
The vulnerability is a Use After Free issue found in the Vim text editor, which occurs when the program continues to use a pointer after the memory it points to has been freed. This flaw can be exploited by attackers to execute arbitrary code, potentially leading to unauthorized access, data corruption, or system compromise. The vulnerability was introduced in earlier versions of Vim and has been fixed in version 2:8.2.3995-1ubuntu2.11.
How To Fix
Minimum fixed version
2:8.2.3995-1ubuntu2.11
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
As a temporary workaround, users can avoid using the affected features of Vim until the package is updated. However, it is strongly recommended to apply the patch as soon as possible to mitigate the risk.
Conclusion
The Use After Free vulnerability in the Vim package poses significant security risks to users. It is crucial to update to the latest version to protect against potential exploits. Regular monitoring of software vulnerabilities is recommended to maintain system security.
See every vulnerability recorded for vim →
FAQ
CVE-2022-2862 is a critical vulnerability in the Vim text editor that allows for a Use After Free condition, potentially leading to arbitrary code execution.
You can check your Vim version by running 'vim --version' in the terminal. If your version is prior to 2:8.2.3995-1ubuntu2.11, it is affected.
Exploitation of this vulnerability can lead to unauthorized access, data corruption, or even complete system compromise.
Yes, you can use Vulert, which monitors and alerts in real-time for open-source vulnerabilities using just a manifest file. You can check your application for vulnerabilities at the Vulert playground without any signup.
The CVSS score for CVE-2022-2862 is 7.8, indicating a high severity level.
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