Critical Memory Management Flaw in Vim Package Leads to Denial of Service
Summary
USN-7131-1: vim vulnerability. Affects vim versions < 2:7.4.052-1ubuntu3.1+esm20. Fixed in 2:7.4.052-1ubuntu3.1+esm20. 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 package is known for its versatility, supporting various programming languages and file formats. However, it has recently been discovered that Vim is vulnerable to a memory management flaw that can be exploited by malicious actors.
Vulnerability Detail
The vulnerability arises from improper handling of memory when closing a buffer in Vim. This flaw can lead to a use-after-free condition, where the application attempts to access memory that has already been freed. If a user is tricked into opening a specially crafted file, an attacker could exploit this vulnerability to crash the application, resulting in a denial of service. The vulnerability is identified as CVE-2024-47814 and is linked to the Ubuntu security notice USN-7131-1.
How To Fix
Minimum fixed version
2:7.4.052-1ubuntu3.1+esm20
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 opening untrusted files or files from unknown sources that may exploit this vulnerability until the package is updated.
Conclusion
In summary, the Vim package has a critical vulnerability that can lead to denial of service due to improper memory management. Users are strongly advised to update their Vim installations to the latest patched versions to mitigate this risk. Additionally, utilizing tools like Vulert can help monitor for such vulnerabilities in your software.
See every vulnerability recorded for vim →
FAQ
CVE-2024-47814 is the identifier for the vulnerability in Vim that allows for a denial of service due to improper memory management.
You can check your version of Vim by running 'vim --version' in your terminal. Compare it with the patched versions listed in the 'how_to_fix' section.
If you do not update Vim, your system remains vulnerable to potential denial of service attacks that could crash the application when opening malicious files.
Yes, you can use Vulert to monitor and alert in real-time for open-source vulnerabilities in your software. It requires just a manifest file like package-lock.json.
More information can be found in the Ubuntu security notice USN-7131-1 and the CVE-2024-47814 documentation.
References
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