Bug 2139086 (CVE-2022-3705)

Summary:	CVE-2022-3705 vim: a use after free in the function qf_update_buffer
Product:	[Other] Security Response	Reporter:	Marian Rehak <mrehak>
Component:	vulnerability	Assignee:	Nobody <nobody>
Status:	NEW ---	QA Contact:
Severity:	low	Docs Contact:
Priority:	low
Version:	unspecified	CC:	zdohnal
Target Milestone:	---	Keywords:	Security
Target Release:	---
Hardware:	All
OS:	Linux
Whiteboard:
Fixed In Version:	vim 9.0.0805	Doc Type:	If docs needed, set a value
Doc Text:	A use-after-free flaw was found in the qf_update_buffer function in vim. This issue allows a specially crafted file to crash a program, use unexpected values, or execute code.	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:	2139087, 2139097, 2139098
Bug Blocks:	2138139

Description Marian Rehak 2022-11-01 11:59:47 UTC

Affected by this issue is the function qf_update_buffer of the file quickfix.c of the component autocmd Handler. The manipulation leads to use after free. The attack may be launched remotely.

Comment 1 Marian Rehak 2022-11-01 12:00:02 UTC

Created vim tracking bugs for this issue:

Affects: fedora-all [bug 2139087]

Comment 3 Marian Rehak 2022-11-01 13:14:47 UTC

Reference:

https://github.com/vim/vim/commit/d0fab10ed2a86698937e3c3fed2f10bd9bb5e731
https://vuldb.com/?id.212324