Bug 1982014 (CVE-2021-29976)

Summary:	CVE-2021-29976 Mozilla: Memory safety bugs fixed in Firefox 90 and Firefox ESR 78.12
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 15:54:50 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 00:53:48 UTC

Mozilla developers Valentin Gosu, Randell Jesup, Emil Ghitta, Tyson Smith, and Olli Pettay reported memory safety bugs present in Firefox 89 and Firefox ESR 78.11. 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/mfsa2021-29/#CVE-2021-29976

Comment 1 errata-xmlrpc 2021-07-15 10:22:51 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 10:49:55 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 11:35:52 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 11:52:47 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 15:54:50 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-2021-29976

Comment 6 Product Security DevOps Team 2021-07-15 21:54:39 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-2021-29976

Comment 7 errata-xmlrpc 2021-07-26 11:36:50 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 8 errata-xmlrpc 2021-07-26 12:06:10 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 9 errata-xmlrpc 2021-07-26 12:15:24 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 10 errata-xmlrpc 2021-07-27 07:47:09 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