Vulnerability Details : CVE-2021-3927
Potential exploit
vim is vulnerable to Heap-based Buffer Overflow
Vulnerability category: OverflowMemory Corruption
Products affected by CVE-2021-3927
- cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:*
- cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:*
- cpe:2.3:o:fedoraproject:fedora:33:*:*:*:*:*:*:*
- cpe:2.3:o:fedoraproject:fedora:34:*:*:*:*:*:*:*
- cpe:2.3:o:fedoraproject:fedora:35:*:*:*:*:*:*:*
- cpe:2.3:a:vim:vim:*:*:*:*:*:*:*:*
Exploit prediction scoring system (EPSS) score for CVE-2021-3927
0.10%
Probability of exploitation activity in the next 30 days
EPSS Score History
~ 41 %
Percentile, the proportion of vulnerabilities that are scored at or less
CVSS scores for CVE-2021-3927
| Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source | First Seen |
|---|---|---|---|---|---|---|
|
6.8
|
MEDIUM | AV:N/AC:M/Au:N/C:P/I:P/A:P |
8.6
|
6.4
|
NIST | |
|
7.3
|
HIGH | CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:L/I:H/A:H |
1.8
|
5.5
|
huntr.dev | |
|
7.8
|
HIGH | CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H |
1.8
|
5.9
|
NIST |
CWE ids for CVE-2021-3927
-
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().Assigned by: security@huntr.dev (Primary)
-
The product writes data past the end, or before the beginning, of the intended buffer.Assigned by: nvd@nist.gov (Secondary)
References for CVE-2021-3927
-
https://security.gentoo.org/glsa/202208-32
Vim, gVim: Multiple Vulnerabilities (GLSA 202208-32) — Gentoo securityThird Party Advisory
-
http://www.openwall.com/lists/oss-security/2022/01/15/1
oss-security - Re: 3 new CVE's in vimMailing List;Third Party Advisory
-
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/FNXY7T5OORA7UJIMGSJBGHFMU6UZWS6P/
[SECURITY] Fedora 34 Update: vim-8.2.3755-1.fc34 - package-announce - Fedora Mailing-ListsMailing List;Third Party Advisory
-
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/PGW56Z6IN4UVM3E5RXXF4G7LGGTRBI5C/
[SECURITY] Fedora 35 Update: vim-8.2.3582-1.fc35 - package-announce - Fedora Mailing-ListsMailing List;Third Party Advisory
-
https://huntr.dev/bounties/9c2b2c82-48bb-4be9-ab8f-a48ea252d1b0
huntr: Heap-based Buffer Overflow Vim script Vulnerability in vimExploit;Patch;Third Party Advisory
-
https://github.com/vim/vim/commit/0b5b06cb4777d1401fdf83e7d48d287662236e7e
patch 8.2.3581: reading character past end of line · vim/vim@0b5b06c · GitHubPatch;Third Party Advisory
-
https://lists.debian.org/debian-lts-announce/2022/11/msg00009.html
[SECURITY] [DLA 3182-1] vim security updateMailing List;Third Party Advisory
-
https://lists.debian.org/debian-lts-announce/2022/03/msg00018.html
[SECURITY] [DLA 2947-1] vim security updateMailing List;Third Party Advisory
-
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/BCQWPEY2AEYBELCMJYHYWYCD3PZVD2H7/
[SECURITY] Fedora 33 Update: vim-8.2.3582-1.fc33 - package-announce - Fedora Mailing-ListsMailing List;Third Party Advisory
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