Bug 2044607 (CVE-2022-0261)

Summary:	CVE-2022-0261 vim: Heap-based buffer overflow in block_insert() in src/ops.c
Product:	[Other] Security Response	Reporter:	Pedro Sampaio <psampaio>
Component:	vulnerability	Assignee:	Red Hat Product Security <security-response-team>
Status:	CLOSED ERRATA	QA Contact:
Severity:	medium	Docs Contact:
Priority:	medium
Version:	unspecified	CC:	bdettelb, caswilli, dhalasz, fhrdina, fjansen, gchamoul, jburrell, jwong, karsten, kaycoth, micjohns, sthirugn, tkasparek, trathi, vkrizan, vkumar, vmugicag, zdohnal
Target Milestone:	---	Keywords:	Security
Target Release:	---
Hardware:	All
OS:	Linux
Whiteboard:
Fixed In Version:	vim 8.2.4219	Doc Type:	If docs needed, set a value
Doc Text:	A heap based out-of-bounds write flaw was found in vim's ops.c. This flaw allows an attacker to trick a user to open a crafted file triggering an out-of-bounds write. This vulnerability is capable of crashing software, modify memory, and possible code execution.	Story Points:	---
Clone Of:		Environment:
Last Closed:	2022-03-15 15:47:32 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:	2044608, 2044636, 2045020, 2045021, 2046116, 2046117
Bug Blocks:	2044609

Description Pedro Sampaio 2022-01-24 19:58:55 UTC

Heap-based Buffer Overflow in GitHub repository vim/vim prior to 8.2.

Reference:

https://github.com/vim/vim/commit/9f8c304c8a390ade133bac29963dc8e56ab14cbc
https://huntr.dev/bounties/fa795954-8775-4f23-98c6-d4d4d3fe8a82

Comment 1 Pedro Sampaio 2022-01-24 19:59:20 UTC

Created vim tracking bugs for this issue:

Affects: fedora-all [bug 2044608]

Comment 2 juneau 2022-01-24 21:07:38 UTC

Marked services affected/defer. Affected code is present, however impact is low and actual occurrence of flaw is unlikely at best.

Comment 3 juneau 2022-01-24 21:11:00 UTC

Correction to above: s/defer/delegated/

Comment 11 errata-xmlrpc 2022-03-15 10:20:52 UTC

This issue has been addressed in the following products:

  Red Hat Enterprise Linux 8

Via RHSA-2022:0894 https://access.redhat.com/errata/RHSA-2022:0894

Comment 12 Product Security DevOps Team 2022-03-15 15:47:28 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-2022-0261