Vulnerability Details : CVE-2021-3796
Potential exploit
vim is vulnerable to Use After Free
Vulnerability category: Memory Corruption
Products affected by CVE-2021-3796
- cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:*
- 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:*:*:*:*:*:*:*:*
- cpe:2.3:a:netapp:ontap_select_deploy_administration_utility:-:*:*:*:*:*:*:*
Exploit prediction scoring system (EPSS) score for CVE-2021-3796
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-2021-3796
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 | |
8.2
|
HIGH | CVSS:3.0/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:L/A:L |
2.3
|
5.3
|
huntr.dev | |
7.3
|
HIGH | CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:L/A:H |
1.8
|
5.5
|
NIST |
CWE ids for CVE-2021-3796
-
The product reuses or references memory after it has been freed. At some point afterward, the memory may be allocated again and saved in another pointer, while the original pointer references a location somewhere within the new allocation. Any operations using the original pointer are no longer valid because the memory "belongs" to the code that operates on the new pointer.Assigned by:
- nvd@nist.gov (Secondary)
- security@huntr.dev (Primary)
References for CVE-2021-3796
-
https://security.netapp.com/advisory/ntap-20221118-0004/
CVE-2021-3796 Vim Vulnerability in NetApp Products | NetApp Product SecurityThird Party Advisory
-
https://security.gentoo.org/glsa/202208-32
Vim, gVim: Multiple Vulnerabilities (GLSA 202208-32) — Gentoo securityThird Party Advisory
-
https://huntr.dev/bounties/ab60b7f3-6fb1-4ac2-a4fa-4d592e08008d
huntr: Use After Free Vim script Vulnerability in vimExploit;Issue Tracking;Patch;Third Party Advisory
-
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/TE62UMYBZE4AE53K6OBBWK32XQ7544QM/
[SECURITY] Fedora 34 Update: vim-8.2.3512-1.fc34 - package-announce - Fedora Mailing-ListsMailing List;Third Party Advisory
-
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/7K4JJBIH3OQSZRVTWKCJCDLGMFGQ5DOH/
[SECURITY] Fedora 35 Update: vim-8.2.3512-1.fc35 - package-announce - Fedora Mailing-ListsMailing List;Third Party Advisory
-
http://www.openwall.com/lists/oss-security/2021/10/01/1
oss-security - 3 new CVE's in vimMailing List;Third Party Advisory
-
https://lists.debian.org/debian-lts-announce/2022/01/msg00003.html
[SECURITY] [DLA 2876-1] vim security updateMailing List;Third Party Advisory
-
https://github.com/vim/vim/commit/35a9a00afcb20897d462a766793ff45534810dc3
patch 8.2.3428: using freed memory when replacing · vim/vim@35a9a00 · GitHubPatch;Third Party Advisory
-
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/S42L4Z4DTW4LHLQ4FJ33VEOXRCBE7WN4/
[SECURITY] Fedora 33 Update: vim-8.2.3512-1.fc33 - package-announce - Fedora Mailing-ListsMailing List;Third Party Advisory
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