Bug 2035928 (CVE-2021-4166)

Summary:	CVE-2021-4166 vim: out-of-bounds read in do_arg_all() in src/arglist.c
Product:	[Other] Security Response	Reporter:	Guilherme de Almeida Suckevicz <gsuckevi>
Component:	vulnerability	Assignee:	Nobody <nobody>
Status:	NEW ---	QA Contact:
Severity:	low	Docs Contact:
Priority:	low
Version:	unspecified	CC:	bdettelb, caswilli, dhalasz, fjansen, gchamoul, jary, jburrell, jwong, karsten, kaycoth, micjohns, saroy, sthirugn, tcarlin, vkrizan, vkumar, vmugicag, zdohnal
Target Milestone:	---	Keywords:	Security
Target Release:	---
Hardware:	All
OS:	Linux
Whiteboard:
Fixed In Version:	vim 8.2.3884	Doc Type:	If docs needed, set a value
Doc Text:	A flaw was found in vim. A possible heap-based buffer overflow could allow 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:	2035929, 2035976, 2035977, 2037021, 2037022
Bug Blocks:	2035932

Description Guilherme de Almeida Suckevicz 2021-12-28 16:39:25 UTC

Vim is vulnerable to out-of-bounds read.

Reference:
https://huntr.dev/bounties/229df5dd-5507-44e9-832c-c70364bdf035

Upstream patch:
https://github.com/vim/vim/commit/6f98371532fcff911b462d51bc64f2ce8a6ae682

Comment 1 Guilherme de Almeida Suckevicz 2021-12-28 16:39:42 UTC

Created vim tracking bugs for this issue:

Affects: fedora-all [bug 2035929]