CVE-2023-48706
Published: 22 November 2023
Vim is a UNIX editor that, prior to version 9.0.2121, has a heap-use-after-free vulnerability. When executing a `:s` command for the very first time and using a sub-replace-special atom inside the substitution part, it is possible that the recursive `:s` call causes free-ing of memory which may later then be accessed by the initial `:s` command. The user must intentionally execute the payload and the whole process is a bit tricky to do since it seems to work only reliably for the very first :s command. It may also cause a crash of Vim. Version 9.0.2121 contains a fix for this issue.
Priority
Status
| Package | Release | Status |
|---|---|---|
|
vim Launchpad, Ubuntu, Debian |
bionic |
Not vulnerable
(code not present)
|
| focal |
Not vulnerable
(code not present)
|
|
| jammy |
Released
(2:8.2.3995-1ubuntu2.15)
|
|
| lunar |
Released
(2:9.0.1000-4ubuntu3.3)
|
|
| mantic |
Released
(2:9.0.1672-1ubuntu2.2)
|
|
| noble |
Released
(2:9.0.2116-1ubuntu2)
|
|
| trusty |
Not vulnerable
(code not present)
|
|
| upstream |
Released
(9.0.2121)
|
|
| xenial |
Not vulnerable
(code not present)
|
|
|
Patches: upstream: https://github.com/vim/vim/commit/26c11c56888d01e298cd8044caf860f3c26f57bb |
||
Severity score breakdown
| Parameter | Value |
|---|---|
| Base score | 4.7 |
| Attack vector | Local |
| Attack complexity | High |
| Privileges required | None |
| User interaction | Required |
| Scope | Unchanged |
| Confidentiality | None |
| Integrity impact | None |
| Availability impact | High |
| Vector | CVSS:3.1/AV:L/AC:H/PR:N/UI:R/S:U/C:N/I:N/A:H |
References
- https://github.com/vim/vim/security/advisories/GHSA-c8qm-x72m-q53q
- https://github.com/vim/vim/pull/13552
- https://github.com/gandalf4a/crash_report/blob/main/vim/vim_huaf
- http://www.openwall.com/lists/oss-security/2023/11/22/3
- https://ubuntu.com/security/notices/USN-6557-1
- https://www.cve.org/CVERecord?id=CVE-2023-48706
- NVD
- Launchpad
- Debian