Bug 2237314 (CVE-2023-4750)

Summary:	CVE-2023-4750 vim: use-after-free in function bt_quickfix
Product:	[Other] Security Response	Reporter:	Patrick Del Bello <pdelbell>
Component:	vulnerability	Assignee:	Product Security <prodsec-ir-bot>
Status:	NEW ---	QA Contact:
Severity:	low	Docs Contact:
Priority:	low
Version:	unspecified	Keywords:	Security
Target Milestone:	---
Target Release:	---
Hardware:	All
OS:	Linux
Whiteboard:
Fixed In Version:	vim 9.0.1857	Doc Type:	If docs needed, set a value
Doc Text:	A flaw was found in Vim, where it is vulnerable to a use-after-free in the bt_quickfix function. This flaw allows a specially crafted file to crash software, use unexpected values, or possibly execute code when opened in Vim.	Story Points:	---
Clone Of:		Environment:
Last Closed:		Type:	---
Regression:	---	Mount Type:	---
Documentation:	---	CRM:
Verified Versions:		Category:	---
oVirt Team:	---	RHEL 7.3 requirements from Atomic Host:
Cloudforms Team:	---	Target Upstream Version:
Embargoed:
Bug Depends On:	2237435
Bug Blocks:	2237310

Description Patrick Del Bello 2023-09-04 18:17:59 UTC

Use After Free in GitHub repository vim/vim prior to 9.0.1857.

https://huntr.dev/bounties/1ab3ebdf-fe7d-4436-b483-9a586e03b0ea
https://github.com/vim/vim/commit/fc68299d436cf87453e432daa77b6d545df4d7ed

Comment 2 Sandipan Roy 2023-09-05 05:02:19 UTC

Red Hat Product Security has rated this issue as having a Low security impact, because the "victim" has to run an untrusted file IN SCRIPT MODE. Someone who is running untrusted files in script mode is equivalent to someone just taking a random python script and running it.

Comment 3 Marian Rehak 2023-09-05 14:00:23 UTC

Created vim tracking bugs for this issue:

Affects: fedora-all [bug 2237435]