Bug 2019630 (CVE-2021-43534)

Summary:	CVE-2021-43534 Mozilla: Memory safety bugs fixed in Firefox 94 and Firefox ESR 91.3
Product:	[Other] Security Response	Reporter:	Doran Moppert <dmoppert>
Component:	vulnerability	Assignee:	Red Hat Product Security <security-response-team>
Status:	CLOSED ERRATA	QA Contact:
Severity:	high	Docs Contact:
Priority:	high
Version:	unspecified	CC:	erack, jhorak, nobody, stransky, tpopela
Target Milestone:	---	Keywords:	Security
Target Release:	---
Hardware:	All
OS:	Linux
Whiteboard:
Fixed In Version:	firefox 91.3, thunderbird 91.3	Doc Type:	If docs needed, set a value
Doc Text:	The Mozilla Foundation Security Advisory describes this flaw as: Memory safety bugs present in Firefox 93 and Firefox ESR 91.2. Some of these bugs showed evidence of memory corruption and we presume that with enough effort some of these could have been exploited to run arbitrary code	Story Points:	---
Clone Of:		Environment:
Last Closed:	2021-11-03 20:08:14 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:	2019237, 2019238, 2019239, 2019240, 2019241, 2019242, 2019243, 2019244, 2019245, 2019246, 2019247, 2019248, 2019249, 2019250, 2019251, 2019254, 2019255, 2019256, 2019257, 2019258, 2019259, 2019260, 2019362, 2019363
Bug Blocks:	2019235

Description Doran Moppert 2021-11-03 00:44:57 UTC

Mozilla developers and community members Christian Holler, Valentin Gosu, and Andrew McCreight reported memory safety bugs present in Firefox 93 and Firefox ESR 91.2. Some of these bugs showed evidence of memory corruption and we presume that with enough effort some of these could have been exploited to run arbitrary code.



External Reference:

https://www.mozilla.org/en-US/security/advisories/mfsa2021-49/#MOZ-2021-0007

Comment 1 errata-xmlrpc 2021-11-03 16:03:35 UTC

This issue has been addressed in the following products:

  Red Hat Enterprise Linux 7

Via RHSA-2021:4116 https://access.redhat.com/errata/RHSA-2021:4116

Comment 2 errata-xmlrpc 2021-11-03 19:42:03 UTC

This issue has been addressed in the following products:

  Red Hat Enterprise Linux 8

Via RHSA-2021:4123 https://access.redhat.com/errata/RHSA-2021:4123

Comment 3 errata-xmlrpc 2021-11-04 16:45:01 UTC

This issue has been addressed in the following products:

  Red Hat Enterprise Linux 8.1 Extended Update Support

Via RHSA-2021:4133 https://access.redhat.com/errata/RHSA-2021:4133

Comment 4 errata-xmlrpc 2021-11-04 16:55:41 UTC

This issue has been addressed in the following products:

  Red Hat Enterprise Linux 8.2 Extended Update Support

Via RHSA-2021:4132 https://access.redhat.com/errata/RHSA-2021:4132

Comment 5 errata-xmlrpc 2021-11-04 16:57:27 UTC

This issue has been addressed in the following products:

  Red Hat Enterprise Linux 8

Via RHSA-2021:4130 https://access.redhat.com/errata/RHSA-2021:4130

Comment 6 errata-xmlrpc 2021-11-04 17:27:33 UTC

This issue has been addressed in the following products:

  Red Hat Enterprise Linux 7

Via RHSA-2021:4134 https://access.redhat.com/errata/RHSA-2021:4134

Comment 8 errata-xmlrpc 2021-11-10 09:55:01 UTC

This issue has been addressed in the following products:

  Red Hat Enterprise Linux 8.1 Extended Update Support

Via RHSA-2021:4607 https://access.redhat.com/errata/RHSA-2021:4607

Comment 9 errata-xmlrpc 2021-11-10 10:36:08 UTC

This issue has been addressed in the following products:

  Red Hat Enterprise Linux 8.2 Extended Update Support

Via RHSA-2021:4605 https://access.redhat.com/errata/RHSA-2021:4605