CVE-2021-3974: Use After Free in vim/vim
First published: Fri Nov 19 2021(Updated: )
Last updated 21 August 2024
Credit: security@huntr.dev security@huntr.dev
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Vim Vim | <8.2.3612 | |
| Fedoraproject Fedora | =34 | |
| Fedoraproject Fedora | =35 | |
| Debian Debian Linux | =9.0 | |
| Debian Debian Linux | =10.0 | |
| debian/vim | <=2:8.2.2434-3+deb11u1 | 2:9.0.1378-2 2:9.1.0861-1 |
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Reference Links
- http://www.openwall.com/lists/oss-security/2022/01/15/1
- https://github.com/vim/vim/commit/64066b9acd9f8cffdf4840f797748f938a13f2d6
- https://huntr.dev/bounties/e402cb2c-8ec4-4828-a692-c95f8e0de6d4
- https://lists.debian.org/debian-lts-announce/2022/03/msg00018.html
- https://lists.debian.org/debian-lts-announce/2022/11/msg00009.html
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/FNXY7T5OORA7UJIMGSJBGHFMU6UZWS6P/
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/IH2LS2DXBTYOCWGAKFMBF3HTWWXPBEFL/
- https://security.gentoo.org/glsa/202208-32
- https://launchpad.net/bugs/cve/CVE-2021-3974
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/FNXY7T5OORA7UJIMGSJBGHFMU6UZWS6P/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/IH2LS2DXBTYOCWGAKFMBF3HTWWXPBEFL/
- https://security-tracker.debian.org/tracker/CVE-2021-3974
- https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-3974
- https://nvd.nist.gov/vuln/detail/CVE-2021-3974
- https://ubuntu.com/security/CVE-2021-3974
Frequently Asked Questions
What is CVE-2021-3974?
CVE-2021-3974 is a vulnerability in vim that allows for Use After Free.
How severe is CVE-2021-3974?
CVE-2021-3974 is a vulnerability with a severity of high.
How does CVE-2021-3974 impact vim?
CVE-2021-3974 allows an attacker to exploit a Use After Free vulnerability in vim.
What versions of vim are affected by CVE-2021-3974?
vim versions 8.2.3612, 2:8.1.2269-1ubuntu5.6, 2:8.2.2434-3ubuntu3.2, 2:7.4.1689-3ubuntu1.5+, and 2:8.0.1453-1ubuntu1.8 are affected by CVE-2021-3974.
How can I fix CVE-2021-3974 in vim?
To fix CVE-2021-3974 in vim, update to version 8.2.3612 or apply the available patches.
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