CVE-2023-48706

medium

Description

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.

References

https://security.netapp.com/advisory/ntap-20240105-0001/

https://lists.fedoraproject.org/archives/list/[email protected]/message/IVA7K73WHQH4KVFDJQ7ELIUD2WK5ZT5E/

https://lists.fedoraproject.org/archives/list/[email protected]/message/DNMFS3IH74KEMMESOA3EOB6MZ56TWGFF/

https://github.com/vim/vim/security/advisories/GHSA-c8qm-x72m-q53q

https://github.com/vim/vim/pull/13552

https://github.com/vim/vim/commit/26c11c56888d01e298cd8044caf860f3c26f57bb

https://github.com/gandalf4a/crash_report/blob/main/vim/vim_huaf

http://www.openwall.com/lists/oss-security/2023/11/22/3

Details

Source: Mitre, NVD

Published: 2023-11-22

Updated: 2024-01-05

Risk Information

CVSS v2

Base Score: 4

Vector: CVSS2#AV:L/AC:H/Au:N/C:N/I:N/A:C

Severity: Medium

CVSS v3

Base Score: 4.7

Vector: CVSS:3.0/AV:L/AC:H/PR:N/UI:R/S:U/C:N/I:N/A:H

Severity: Medium