Bug 2091682 (CVE-2022-1897)

Summary:	CVE-2022-1897 vim: out-of-bounds write in vim_regsub_both() in regexp.c
Product:	[Other] Security Response	Reporter:	Guilherme de Almeida Suckevicz <gsuckevi>
Component:	vulnerability	Assignee:	Red Hat Product Security <security-response-team>
Status:	CLOSED ERRATA	QA Contact:
Severity:	medium	Docs Contact:
Priority:	medium
Version:	unspecified	CC:	fhrdina, gchamoul, karsten, zdohnal
Target Milestone:	---	Keywords:	Security
Target Release:	---
Hardware:	All
OS:	Linux
Whiteboard:
Fixed In Version:	vim 8.2.5023	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 write vulnerability in the vim_regsub_both 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:	2022-09-01 01:36:19 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:	2091683, 2093828, 2093830, 2093831, 2093832
Bug Blocks:	2091689

Description Guilherme de Almeida Suckevicz 2022-05-30 17:37:31 UTC

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

Reference:
https://huntr.dev/bounties/82c12151-c283-40cf-aa05-2e39efa89118

Upstream patch:
https://github.com/vim/vim/commit/338f1fc0ee3ca929387448fe464579d6113fa76a

Comment 1 Guilherme de Almeida Suckevicz 2022-05-30 17:37:47 UTC

Created vim tracking bugs for this issue:

Affects: fedora-all [bug 2091683]

Comment 5 errata-xmlrpc 2022-08-03 12:53:18 UTC

This issue has been addressed in the following products:

  Red Hat Enterprise Linux 8

Via RHSA-2022:5813 https://access.redhat.com/errata/RHSA-2022:5813

Comment 6 errata-xmlrpc 2022-08-09 10:27:58 UTC

This issue has been addressed in the following products:

  Red Hat Enterprise Linux 9

Via RHSA-2022:5942 https://access.redhat.com/errata/RHSA-2022:5942

Comment 7 Product Security DevOps Team 2022-09-01 01:36:17 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-2022-1897