Bug 1932112 (CVE-2021-23978)

Summary:	CVE-2021-23978 Mozilla: Memory safety bugs fixed in Firefox 86 and Firefox ESR 78.8
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:	cschalle, erack, jhorak, nobody, stransky, tpopela
Target Milestone:	---	Keywords:	Security
Target Release:	---
Hardware:	All
OS:	Linux
Whiteboard:
Fixed In Version:	firefox 78.8, thunderbird 78.8	Doc Type:	If docs needed, set a value
Doc Text:		Story Points:	---
Clone Of:		Environment:
Last Closed:	2021-02-24 19:02:55 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:	1930750, 1930751, 1930752, 1930753, 1930754, 1931640, 1931641, 1931642, 1931643, 1931644
Bug Blocks:	1930748

Description Doran Moppert 2021-02-24 01:19:42 UTC

Mozilla developers Alexis Beingessner, Tyson Smith, Nika Layzell, and Mats Palmgren reported memory safety bugs present in Firefox 85 and Firefox ESR 78.7. 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/mfsa2021-08/#CVE-2021-23978

Comment 1 Doran Moppert 2021-02-24 01:19:47 UTC

Acknowledgments:

Name: the Mozilla project
Upstream: Mozilla developers

Comment 2 errata-xmlrpc 2021-02-24 15:00:24 UTC

This issue has been addressed in the following products:

  Red Hat Enterprise Linux 8

Via RHSA-2021:0655 https://access.redhat.com/errata/RHSA-2021:0655

Comment 3 errata-xmlrpc 2021-02-24 15:30:32 UTC

This issue has been addressed in the following products:

  Red Hat Enterprise Linux 8.1 Extended Update Support

Via RHSA-2021:0659 https://access.redhat.com/errata/RHSA-2021:0659

Comment 4 errata-xmlrpc 2021-02-24 15:31:21 UTC

This issue has been addressed in the following products:

  Red Hat Enterprise Linux 8

Via RHSA-2021:0657 https://access.redhat.com/errata/RHSA-2021:0657

Comment 5 errata-xmlrpc 2021-02-24 15:32:27 UTC

This issue has been addressed in the following products:

  Red Hat Enterprise Linux 8.1 Extended Update Support

Via RHSA-2021:0658 https://access.redhat.com/errata/RHSA-2021:0658

Comment 6 errata-xmlrpc 2021-02-24 15:40:30 UTC

This issue has been addressed in the following products:

  Red Hat Enterprise Linux 8.2 Extended Update Support

Via RHSA-2021:0660 https://access.redhat.com/errata/RHSA-2021:0660

Comment 7 errata-xmlrpc 2021-02-24 15:41:05 UTC

This issue has been addressed in the following products:

  Red Hat Enterprise Linux 7

Via RHSA-2021:0656 https://access.redhat.com/errata/RHSA-2021:0656

Comment 8 errata-xmlrpc 2021-02-24 15:46:18 UTC

This issue has been addressed in the following products:

  Red Hat Enterprise Linux 8.2 Extended Update Support

Via RHSA-2021:0662 https://access.redhat.com/errata/RHSA-2021:0662

Comment 9 errata-xmlrpc 2021-02-24 15:58:59 UTC

This issue has been addressed in the following products:

  Red Hat Enterprise Linux 7

Via RHSA-2021:0661 https://access.redhat.com/errata/RHSA-2021:0661

Comment 10 Product Security DevOps Team 2021-02-24 19:02:55 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-2021-23978