Bug 2099979 (CVE-2022-1720)

Summary:	CVE-2022-1720 vim: buffer over-read in grab_file_name() in findfile.c
Product:	[Other] Security Response	Reporter:	TEJ RATHI <trathi>
Component:	vulnerability	Assignee:	Red Hat Product Security <security-response-team>
Status:	CLOSED WONTFIX	QA Contact:
Severity:	low	Docs Contact:
Priority:	low
Version:	unspecified	CC:	fhrdina, gchamoul, karsten, zdohnal
Target Milestone:	---	Keywords:	Security
Target Release:	---
Hardware:	All
OS:	Linux
Whiteboard:
Fixed In Version:	vim 8.2.4956	Doc Type:	If docs needed, set a value
Doc Text:	A heap buffer over-read vulnerability was found in Vim's grab_file_name() function of the src/findfile.c file. This flaw occurs because the function reads after the NULL terminates the line with "gf" in Visual block mode. This flaw allows an attacker to trick a user into opening a specially crafted file, triggering a heap buffer over-read vulnerability that causes an application to crash and corrupt memory.	Story Points:	---
Clone Of:		Environment:
Last Closed:	2022-06-24 11:40:08 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:	2099980, 2099986, 2099987
Bug Blocks:	2099378

Description TEJ RATHI 2022-06-22 06:15:51 UTC

Buffer Over-read in function grab_file_name in GitHub repository vim/vim prior to 8.2.4956. 

https://github.com/vim/vim/commit/395bd1f6d3edc9f7edb5d1f2d7deaf5a9e3ab93c
https://huntr.dev/bounties/5ccfb386-7eb9-46e5-98e5-243ea4b358a8
https://lists.debian.org/debian-lts-announce/2022/06/msg00014.html

Comment 1 TEJ RATHI 2022-06-22 06:26:04 UTC

Created vim tracking bugs for this issue:

Affects: fedora-all [bug 2099980]

Comment 3 Product Security DevOps Team 2022-06-24 11:40:06 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-2022-1720