CVE-2024-41957
However a bit later, the quickfix list belonging to that window will also be cleared and if that quickfix list points to the same tagstack data, Vim will try to free it again, resulting in a double-free/use-after-free access exception.
Does this matter?
Lower severity and a low EPSS score (0.37%). Track it; it rarely justifies an emergency change on its own.
Description
Vim is an open source command line text editor. Vim < v9.1.0647 has double free in src/alloc.c:616. When closing a window, the corresponding tagstack data will be cleared and freed. However a bit later, the quickfix list belonging to that window will also be cleared and if that quickfix list points to the same tagstack data, Vim will try to free it again, resulting in a double-free/use-after-free access exception. Impact is low since the user must intentionally execute vim with several non-default flags, but it may cause a crash of Vim. The issue has been fixed as of Vim patch v9.1.0647
- CVSS 3.1
- 5.3 MEDIUMCVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:L
- EPSS
- 0.37% probability · 30th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-415
- Affected
- vim/vim
- Source
- security-advisories@github.com
References
- https://github.com/vim/vim/commit/8a0bbe7b8aad6f8da28dee218c01bc8a0185aPatch
- https://github.com/vim/vim/security/advisories/GHSA-f9cr-gv85-hcr4Vendor Advisory
- http://seclists.org/fulldisclosure/2024/Sep/33
- http://www.openwall.com/lists/oss-security/2024/08/01/1
- https://security.netapp.com/advisory/ntap-20241129-0007/
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.