CVE-2021-3872: Heap-based Buffer Overflow in vim/vim
First published: Tue Oct 19 2021(Updated: )
Last updated 24 July 2024
Credit: security@huntr.dev security@huntr.dev
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Vim Vim | <8.2.3487 | |
| Fedoraproject Fedora | =33 | |
| Fedoraproject Fedora | =35 | |
| Debian Debian Linux | =9.0 | |
| debian/vim | <=2:8.2.2434-3+deb11u1 | 2:9.0.1378-2 2:9.1.0709-2 |
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Reference Links
- https://github.com/vim/vim/commit/826bfe4bbd7594188e3d74d2539d9707b1c6a14b
- https://huntr.dev/bounties/c958013b-1c09-4939-92ca-92f50aa169e8
- https://lists.debian.org/debian-lts-announce/2022/03/msg00018.html
- 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://launchpad.net/bugs/cve/CVE-2021-3872
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/7K4JJBIH3OQSZRVTWKCJCDLGMFGQ5DOH/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/S42L4Z4DTW4LHLQ4FJ33VEOXRCBE7WN4/
- https://security-tracker.debian.org/tracker/CVE-2021-3872
- https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-3872
- https://nvd.nist.gov/vuln/detail/CVE-2021-3872
- https://ubuntu.com/security/CVE-2021-3872
Frequently Asked Questions
What is CVE-2021-3872?
CVE-2021-3872 is a vulnerability in vim that allows for a heap-based buffer overflow.
How severe is CVE-2021-3872?
CVE-2021-3872 has a severity rating of 7.8, which is considered high.
What software is affected by CVE-2021-3872?
Vim versions 8.2.2434-3ubuntu3.1, 8.1.2269-1ubuntu5.4, 8.2.2434-1ubuntu1.2, 8.2.3487, 8.2.3565-1ubuntu2, 8.1.0875-5+deb10u6, 8.2.3565-1ubuntu2, 9.0.1378-2, 9.0.1894-1, and 9.0.2018-1 are affected.
How can I fix CVE-2021-3872?
To fix CVE-2021-3872, you should update your vim package to version 8.2.3487 or later.
Where can I find more information about CVE-2021-3872?
You can find more information about CVE-2021-3872 at the following links: [Mitre](https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-3872), [Github](https://github.com/vim/vim/commit/826bfe4bbd7594188e3d74d2539d9707b1c6a14b), [Huntr](https://huntr.dev/bounties/c958013b-1c09-4939-92ca-92f50aa169e8).
- collector/nvd-index
- agent/type
- agent/remedy
- agent/first-publish-date
- collector/launchpad-cve
- source/Launchpad
- agent/author
- agent/weakness
- agent/description
- collector/nvd-cve
- source/NVD
- agent/software-canonical-lookup
- agent/references
- collector/mitre-cve
- source/MITRE
- agent/severity
- agent/last-modified-date
- agent/title
- agent/event
- agent/tags
- collector/security-tracker-debian
- source/Debian
- agent/softwarecombine
- collector/usn-cve
- source/Ubuntu
- vendor/vim
- canonical/vim vim
- vendor/fedoraproject
- canonical/fedoraproject fedora
- version/fedoraproject fedora/33
- version/fedoraproject fedora/35
- vendor/debian
- canonical/debian debian linux
- version/debian debian linux/9.0
- package-manager/debian