CVE-2021-3875: Heap-based Buffer Overflow in vim/vim
First published: Fri Oct 15 2021(Updated: )
vim is vulnerable to Heap-based Buffer Overflow
Credit: security@huntr.dev
| Affected Software | Affected Version | How to fix |
|---|---|---|
| SUSE Vim | <8.2.3489 | |
| Fedora | =33 | |
| Fedora | =35 |
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Reference Links
- http://www.openwall.com/lists/oss-security/2022/01/15/1
- https://github.com/vim/vim/commit/35a319b77f897744eec1155b736e9372c9c5575f
- https://huntr.dev/bounties/5cdbc168-6ba1-4bc2-ba6c-28be12166a53
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/7K4JJBIH3OQSZRVTWKCJCDLGMFGQ5DOH/
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/S42L4Z4DTW4LHLQ4FJ33VEOXRCBE7WN4/
- https://security.gentoo.org/glsa/202208-32
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/S42L4Z4DTW4LHLQ4FJ33VEOXRCBE7WN4/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/7K4JJBIH3OQSZRVTWKCJCDLGMFGQ5DOH/
Frequently Asked Questions
What is the severity of CVE-2021-3875?
CVE-2021-3875 is classified as a high-severity vulnerability due to the potential for exploitation leading to arbitrary code execution.
How do I fix CVE-2021-3875?
To fix CVE-2021-3875, update Vim to version 8.2.3489 or later, or apply vendor-specific patches where available.
What types of systems are affected by CVE-2021-3875?
CVE-2021-3875 affects various versions of Vim, including versions prior to 8.2.3489 and Fedora 33 and 35 distributions.
What is the exploit method for CVE-2021-3875?
CVE-2021-3875 can be exploited through a heap-based buffer overflow, allowing an attacker to execute arbitrary code.
Are there any workarounds for CVE-2021-3875?
Currently, disabling certain functionalities in Vim or using alternative text editors may serve as temporary workarounds for CVE-2021-3875.
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- vendor/vim
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- vendor/fedoraproject
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- version/fedora/33
- version/fedora/35