Bug 2122907 (CVE-2022-3037)

Summary:	CVE-2022-3037 vim: use after free in function qf_buf_add_line( )
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:	gchamoul, karsten, zdohnal
Target Milestone:	---	Keywords:	Security
Target Release:	---
Hardware:	All
OS:	Linux
Whiteboard:
Fixed In Version:	vim 9.0.0322	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 qf_buf_add_line() function. This flaw 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:	2122908, 2126336, 2126337
Bug Blocks:	2122909

Description Marian Rehak 2022-08-31 08:49:15 UTC

A use after free in function qf_buf_add_line( ) may cause memory corruption, that can lead to a crash or other undefined (potentially exploitable) behaviour.

Reference:

https://huntr.dev/bounties/af4c2f2d-d754-4607-b565-9e92f3f717b5
https://github.com/vim/vim/commit/4f1b083be43f351bc107541e7b0c9655a5d2c0bb

Comment 1 Marian Rehak 2022-08-31 08:49:28 UTC

Created vim tracking bugs for this issue:

Affects: fedora-all [bug 2122908]