Vim up to 9.1.0763 use after free

Summaryinfo

A vulnerability classified as critical has been found in Vim up to 9.1.0763. Impacted is an unknown function. Performing a manipulation results in use after free. This vulnerability is reported as CVE-2024-47814. The attack is possible to be carried out remotely. No exploit exists. It is recommended to upgrade the affected component.

Detailsinfo

A vulnerability was found in Vim up to 9.1.0763. It has been classified as critical. This affects some unknown processing. The manipulation with an unknown input leads to a use after free vulnerability. CWE is classifying the issue as CWE-416. Referencing memory after it has been freed can cause a program to crash, use unexpected values, or execute code. This is going to have an impact on confidentiality, integrity, and availability. The summary by CVE is:

Vim is an open source, command line text editor. A use-after-free was found in Vim < 9.1.0764. When closing a buffer (visible in a window) a BufWinLeave auto command can cause an use-after-free if this auto command happens to re-open the same buffer in a new split window. Impact is low since the user must have intentionally set up such a strange auto command and run some buffer unload commands. However this may lead to a crash. This issue has been addressed in version 9.1.0764 and all users are advised to upgrade. There are no known workarounds for this vulnerability.

The advisory is shared at github.com. This vulnerability is uniquely identified as CVE-2024-47814 since 10/03/2024. The exploitability is told to be easy. It is possible to initiate the attack remotely. No form of authentication is needed for exploitation. It demands that the victim is doing some kind of user interaction. Neither technical details nor an exploit are publicly available.

The vulnerability scanner Nessus provides a plugin with the ID 208441 (Vim 9.1.0764 (GHSA-rj48-v4mq-j4vg)), which helps to determine the existence of the flaw in a target environment.

Upgrading to version 9.1.0764 eliminates this vulnerability. Applying a patch is able to eliminate this problem. The bugfix is ready for download at github.com. The best possible mitigation is suggested to be upgrading to the latest version.

The vulnerability is also documented in the vulnerability database at Tenable (208441). Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

Productinfo

Type

• Word Processing Software

Name

• Vim

Version

• 9.1.0763

License

• open-source

Website

• Product: https://github.com/vim/vim/

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Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

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