Bug 2049556 (CVE-2022-0319)

Summary:	CVE-2022-0319 vim: heap-based out-of-bounds read
Product:	[Other] Security Response	Reporter:	Marian Rehak <mrehak>
Component:	vulnerability	Assignee:	Red Hat Product Security <security-response-team>
Status:	CLOSED NOTABUG	QA Contact:
Severity:	medium	Docs Contact:
Priority:	medium
Version:	unspecified	CC:	caswilli, dhalasz, fhrdina, fjansen, gchamoul, jburrell, jnakfour, jwong, karsten, kaycoth, micjohns, saroy, sthirugn, tkasparek, 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 buffer shifting when exchanging windows in Visual mode and leads to a heap buffer overflow. 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:	2022-02-08 07:56:21 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:	2049559, 2049583, 2049584, 2049586
Bug Blocks:	2048522

Description Marian Rehak 2022-02-02 11:49:55 UTC

A heap-based OOB read of size 4 occurs when a user tries to open a vim session file specified below. This happens regardless of any command line options that could be specified to restrict vim, such -Z and -m.

Reference:

https://huntr.dev/bounties/ba622fd2-e6ef-4ad9-95b4-17f87b68755b/

Comment 1 Marian Rehak 2022-02-02 11:52:09 UTC

Created vim tracking bugs for this issue:

Affects: fedora-all [bug 2049559]

Comment 4 juneau 2022-02-03 12:49:30 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.