Bug 1801635 (CVE-2019-19221)

Summary:	CVE-2019-19221 libarchive: out-of-bounds read in archive_wstring_append_from_mbs in archive_string.c
Product:	[Other] Security Response	Reporter:	Dhananjay Arunesh <darunesh>
Component:	vulnerability	Assignee:	Red Hat Product Security <security-response-team>
Status:	CLOSED ERRATA	QA Contact:
Severity:	medium	Docs Contact:
Priority:	medium
Version:	unspecified	CC:	databases-maint, ndevos, odubaj, panovotn, pkubat, praiskup, tomm.momi
Target Milestone:	---	Keywords:	Security
Target Release:	---
Hardware:	All
OS:	Linux
Whiteboard:
Fixed In Version:		Doc Type:	If docs needed, set a value
Doc Text:		Story Points:	---
Clone Of:		Environment:
Last Closed:	2020-11-04 02:24:15 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:	1801636, 1803966, 1803967
Bug Blocks:	1801637

Description Dhananjay Arunesh 2020-02-11 12:40:25 UTC

A vulnerability was found in Libarchive 3.4.0, archive_wstring_append_from_mbs in archive_string.c has an out-of-bounds read because of an incorrect mbrtowc or mbtowc call. For example, bsdtar crashes via a crafted archive.

Reference:
https://github.com/libarchive/libarchive/commit/22b1db9d46654afc6f0c28f90af8cdc84a199f41
https://github.com/libarchive/libarchive/issues/1276

Comment 1 Dhananjay Arunesh 2020-02-11 12:40:49 UTC

Created libarchive tracking bugs for this issue:

Affects: fedora-all [bug 1801636]

Comment 3 errata-xmlrpc 2020-11-04 01:00:16 UTC

This issue has been addressed in the following products:

  Red Hat Enterprise Linux 8

Via RHSA-2020:4443 https://access.redhat.com/errata/RHSA-2020:4443

Comment 4 Product Security DevOps Team 2020-11-04 02:24:15 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-2019-19221