Bug 2049180 (CVE-2022-0393)

Summary:	CVE-2022-0393 vim: out-of-bounds read in delete_buff_tail() in getchar.c
Product:	[Other] Security Response	Reporter:	Guilherme de Almeida Suckevicz <gsuckevi>
Component:	vulnerability	Assignee:	Nobody <nobody>
Status:	NEW ---	QA Contact:
Severity:	medium	Docs Contact:
Priority:	medium
Version:	unspecified	CC:	caswilli, dhalasz, fhrdina, fjansen, gchamoul, jburrell, jwong, karsten, kaycoth, micjohns, sthirugn, vkrizan, vkumar, vmugicag, zdohnal
Target Milestone:	---	Keywords:	Security
Target Release:	---
Hardware:	All
OS:	Linux
Whiteboard:
Fixed In Version:	vim 8.2.4282	Doc Type:	If docs needed, set a value
Doc Text:	A flaw was found in vim. The vulnerability occurs due to a crash when recording and using Select mode and leads to an out-of-bounds read. 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:		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:	2049181
Bug Blocks:	2048522

Description Guilherme de Almeida Suckevicz 2022-02-01 17:14:28 UTC

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

Reference:
https://huntr.dev/bounties/ecc8f488-01a0-477f-848f-e30b8e524bba

Upstream patch:
https://github.com/vim/vim/commit/a4bc2dd7cccf5a4a9f78b58b6f35a45d17164323

Comment 1 Guilherme de Almeida Suckevicz 2022-02-01 17:14:44 UTC

Created vim tracking bugs for this issue:

Affects: fedora-all [bug 2049181]

Comment 3 juneau 2022-02-01 17:41:50 UTC

Marking Services affected/wontreport.
Have already reported and filed trackers for CVE-2022-0408 and -0413 attached to same task.
Remediation is the same for all, and additional trackers add no value.