Bug 1982013 (CVE-2021-29970)

Summary:	CVE-2021-29970 Mozilla: Use-after-free in accessibility features of a document
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 78.12, thunderbird 78.12	Doc Type:	If docs needed, set a value
Doc Text:		Story Points:	---
Clone Of:		Environment:
Last Closed:	2021-07-15 15:54:46 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:	1979491, 1979492, 1979493, 1979494, 1979495, 1979496, 1979507, 1979508, 1979509, 1979511, 1979512, 1979513, 1979566
Bug Blocks:	1979487

Description Doran Moppert 2021-07-14 00:53:39 UTC

A malicious webpage could have triggered a use-after-free, memory corruption, and a potentially exploitable crash. 

*This bug only affected Firefox when accessibility was enabled.*



External Reference:

https://www.mozilla.org/en-US/security/advisories/mfsa2021-29/#CVE-2021-29970

Comment 1 errata-xmlrpc 2021-07-15 10:22:48 UTC

This issue has been addressed in the following products:

  Red Hat Enterprise Linux 8.1 Extended Update Support

Via RHSA-2021:2740 https://access.redhat.com/errata/RHSA-2021:2740

Comment 2 errata-xmlrpc 2021-07-15 10:49:50 UTC

This issue has been addressed in the following products:

  Red Hat Enterprise Linux 7

Via RHSA-2021:2741 https://access.redhat.com/errata/RHSA-2021:2741

Comment 3 errata-xmlrpc 2021-07-15 11:35:51 UTC

This issue has been addressed in the following products:

  Red Hat Enterprise Linux 8.2 Extended Update Support

Via RHSA-2021:2742 https://access.redhat.com/errata/RHSA-2021:2742

Comment 4 errata-xmlrpc 2021-07-15 11:52:36 UTC

This issue has been addressed in the following products:

  Red Hat Enterprise Linux 8

Via RHSA-2021:2743 https://access.redhat.com/errata/RHSA-2021:2743

Comment 5 Product Security DevOps Team 2021-07-15 15:54:46 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-2021-29970

Comment 6 errata-xmlrpc 2021-07-26 11:36:45 UTC

This issue has been addressed in the following products:

  Red Hat Enterprise Linux 8.1 Extended Update Support

Via RHSA-2021:2882 https://access.redhat.com/errata/RHSA-2021:2882

Comment 7 errata-xmlrpc 2021-07-26 12:06:03 UTC

This issue has been addressed in the following products:

  Red Hat Enterprise Linux 8

Via RHSA-2021:2883 https://access.redhat.com/errata/RHSA-2021:2883

Comment 8 errata-xmlrpc 2021-07-26 12:15:20 UTC

This issue has been addressed in the following products:

  Red Hat Enterprise Linux 7

Via RHSA-2021:2881 https://access.redhat.com/errata/RHSA-2021:2881

Comment 9 errata-xmlrpc 2021-07-27 07:47:01 UTC

This issue has been addressed in the following products:

  Red Hat Enterprise Linux 8.2 Extended Update Support

Via RHSA-2021:2914 https://access.redhat.com/errata/RHSA-2021:2914