Buffer overflow in Neovim
CVE-2021-4019
vim is vulnerable to Heap-based Buffer Overflow
Vulnerability class: Buffer Overflow
Published · last modified .
CVSS v3 metric
CVSS v3 base score 7.8 (High). Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H.
EPSS exploit prediction
EPSS: 0.019 (79.2th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 79th percentile — 79.2% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.018 · newest: 0.019 · change: +0.001
Affected products
- Neovim
- Vim
- Vim Vim/vim — versions unspecified
- Debian Linux — versions 9.0, 10.0, 11.0
- Fedoraproject Fedora — versions 34, 35
Weakness classification (CWE)
Public proof-of-concept exploits
References
- huntr.dev/bounties/d8798584-a6c9-4619-b18f-001b9a6fca92 (Exploit, Third Party Advisory)
- github.com/vim/vim/commit/bd228fd097b41a798f90944b5d1245eddd484142 (Patch, Third Party Advisory)
- lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/… (vendor-advisory, Third Party Advisory, Broken Link)
- lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/… (vendor-advisory, Third Party Advisory, Broken Link)
- www.openwall.com/lists/oss-security/2022/01/15/1 (mailing-list, Mailing List, Third Party Advisory)
- lists.debian.org/debian-lts-announce/2022/03/msg00018.html (mailing-list, Mailing List, Third Party Advisory)
- security.gentoo.org/glsa/202208-32 (vendor-advisory, Third Party Advisory)
- lists.debian.org/debian-lts-announce/2022/11/msg00009.html (mailing-list, Mailing List, Third Party Advisory)
- af854a3a-2127-422b-91ae-364da2661108 (Third Party Advisory)
Frequently asked questions
- What is CVE-2021-4019?
- CVE-2021-4019 is a high-severity vulnerability in Neovim, classified under Heap-based Buffer Overflow. CVSS score: 7.8/10. Published 2021-12-01.
- How severe is CVE-2021-4019?
- High severity. CVSS v3 base score is 7.8 out of 10.
- Is CVE-2021-4019 known to be exploited?
- 2 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.