vim up to 8.2.4774 vim_strncpy heap-based overflow

Summaryinfo

A vulnerability was found in vim. It has been classified as critical. This vulnerability affects the function vim_strncpy. Performing a manipulation results in heap-based overflow. This vulnerability was named CVE-2022-1621. The attack may be initiated remotely. There is no available exploit. Upgrading the affected component is recommended.

Detailsinfo

A vulnerability classified as critical has been found in vim (Word Processing Software). This affects the function vim_strncpy. The manipulation with an unknown input leads to a heap-based overflow vulnerability. CWE is classifying the issue as CWE-122. A heap overflow condition is a buffer overflow, where the buffer that can be overwritten is allocated in the heap portion of memory, generally meaning that the buffer was allocated using a routine such as malloc(). This is going to have an impact on confidentiality, integrity, and availability.

The weakness was presented 05/10/2022. It is possible to read the advisory at huntr.dev. This vulnerability is uniquely identified as CVE-2022-1621 since 05/08/2022. It demands that the victim is doing some kind of user interaction. Technical details of the vulnerability are known, but there is no available exploit.

The vulnerability scanner Nessus provides a plugin with the ID 269953 (Oracle Linux 8 : vim (ELSA-2025-17715)), which helps to determine the existence of the flaw in a target environment.

Upgrading to version 8.2.4919 eliminates this vulnerability. Applying the patch 7c824682d2028432ee082703ef0ab399867a089b 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 databases at Tenable (269953) and EUVD (EUVD-2022-24910). Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

Productinfo

Type

• Word Processing Software

Name

• vim

Version

• 0.52
• 1.0
• 1.22
• 3.0
• 4.0
• 5.0
• 5.1
• 5.2
• 5.3
• 5.4
• 5.5
• 5.6
• 5.7
• 5.8
• 6.0
• 6.1
• 6.2
• 6.3
• 6.3.011
• 6.3.025
• 6.3.030
• 6.3.044
• 6.3.081
• 6.4
• 7.0
• 7.1
• 7.1.38
• 7.1.314
• 7.2
• 7.2a.10
• 8.0
• 8.0.0056
• 8.0.0322
• 8.0.0377
• 8.0.0378
• 8.0.1263
• 8.1.0881
• 8.1.1365
• 8.1.2135
• 8.1.2136
• 8.2
• 8.2.2348
• 8.2.3883
• 8.2.4646
• 8.2.4774

License

• open-source

Website

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

CPE 2.3info

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CPE 2.2info

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Entryinfo

Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

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