Critical Security Flaws in Vim Package: Multiple Vulnerabilities Identified
Summary
RLSA-2026:48650: Important: vim security update. Affects vim versions < 2:9.1.083-9.el10_2.12. Fixed in 2:9.1.083-9.el10_2.12. How to fix ↓
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Background
Vim, short for Vi IMproved, 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, recent vulnerabilities have been identified that could potentially compromise the security of systems using this package.
Vulnerability Detail
The identified vulnerabilities in Vim include a denial of service through stack out-of-bounds write in the spell_soundfold_sofo() function, arbitrary code execution via malicious docstrings in Python omni-completion, out-of-bounds write in the spell file word count, and arbitrary command execution through crafted files in PHP and C omni-completion. These vulnerabilities could allow attackers to execute arbitrary code or cause the application to crash, leading to potential data loss or system compromise.
How To Fix
Minimum fixed version
2:9.1.083-9.el10_2.12
This is the first release that contains the fix.
sudo dnf update vimTip — Not sure which version your app runs? Vulert can match this fix to it. Scan free →
Workaround
As a temporary workaround, users can disable the omni-completion feature in Vim to mitigate the risk of arbitrary code execution until the package is updated. This can be done by adding the following line to your Vim configuration file: 'set complete-=i'.
Conclusion
The recent vulnerabilities identified in the Vim package pose significant risks to users, including potential arbitrary code execution and denial of service. It is essential to update to the latest patched version to safeguard your systems. Utilizing tools like Vulert can further enhance your security posture by monitoring for vulnerabilities in real-time.
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FAQ
The CVSS score for the vulnerabilities in Vim is 7.8, indicating a high severity level.
You can use Vulert, which monitors and alerts for open-source vulnerabilities in your software. Visit Vulert Scanner to check your application without any signup.
The vulnerabilities could lead to arbitrary code execution, denial of service, and potential data loss, making it crucial to address them promptly.
Yes, you can disable the omni-completion feature in Vim as a temporary workaround until the package is updated.
Vim is maintained by the Vim community and the Rocky Enterprise Software Foundation, with contributions from various developers.
References
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