Bug 2091676 (CVE-2022-1851)

Summary:	CVE-2022-1851 vim: out-of-bounds read in gchar_cursor() in misc1.c
Product:	[Other] Security Response	Reporter:	Guilherme de Almeida Suckevicz <gsuckevi>
Component:	vulnerability	Assignee:	Red Hat Product Security <security-response-team>
Status:	CLOSED NOTABUG	QA Contact:
Severity:	medium	Docs Contact:
Priority:	medium
Version:	unspecified	CC:	gchamoul, karsten, michal.skrivanek, mperina, sbonazzo, zdohnal
Target Milestone:	---	Keywords:	Security
Target Release:	---
Hardware:	All
OS:	Linux
Whiteboard:
Fixed In Version:	vim 8.2.5013	Doc Type:	If docs needed, set a value
Doc Text:	A flaw was found in vim. The vulnerability occurs due to Illegal memory access and leads to an out-of-bounds read vulnerability in the gchar_cursor function. This flaw allows an attacker to input a specially crafted file, leading to a crash or code execution.	Story Points:	---
Clone Of:		Environment:
Last Closed:	2022-06-06 11:17:13 UTC	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:	2091677
Bug Blocks:	2091689

Description Guilherme de Almeida Suckevicz 2022-05-30 17:32:15 UTC

Out-of-bounds Read in GitHub repository vim/vim prior to 8.2.

Reference:
https://huntr.dev/bounties/f8af901a-9a46-440d-942a-8f815b59394d

Upstream patch:
https://github.com/vim/vim/commit/78d52883e10d71f23ab72a3d8b9733b00da8c9ad

Comment 1 Guilherme de Almeida Suckevicz 2022-05-30 17:32:30 UTC

Created vim tracking bugs for this issue:

Affects: fedora-all [bug 2091677]

Comment 2 Product Security DevOps Team 2022-06-06 11:17:11 UTC

This bug is now closed. Further updates for individual products will be reflected on the CVE page(s):

https://access.redhat.com/security/cve/cve-2022-1851