Bug 1920651 (CVE-2021-23964)

Summary:	CVE-2021-23964 Mozilla: Memory safety bugs fixed in Firefox 85 and Firefox ESR 78.7
Product:	[Other] Security Response	Reporter:	msiddiqu
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, gecko-bugs-nobody, jhorak, stransky, tpopela
Target Milestone:	---	Keywords:	Security
Target Release:	---
Hardware:	All
OS:	Linux
Whiteboard:
Fixed In Version:	firefox 78.7, thunderbird 78.7	Doc Type:	If docs needed, set a value
Doc Text:	The Mozilla Foundation Security Advisory describes this flaw as: Mozilla developers reported memory safety bugs present in Firefox 84 and Firefox ESR 78.6. 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:	2021-01-27 20:41:45 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:	1919188, 1919189, 1919190, 1919191, 1919192, 1920635, 1920636, 1920637, 1920638, 1920640
Bug Blocks:	1919186

Description msiddiqu 2021-01-26 19:30:02 UTC

Mozilla developers reported memory safety bugs present in Firefox 84 and Firefox ESR 78.6. 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/mfsa2021-04/#CVE-2021-23964

Comment 1 msiddiqu 2021-01-26 19:30:10 UTC

Acknowledgments:

Name: the Mozilla project
Upstream: Alexis Beingessner, Christian Holler, Andrew McCreight, Tyson Smith, Jon Coppeard, André Bargull, Jason Kratzer, Jesse Schwartzentruber, Steve Fink, Byron Campen

Comment 2 errata-xmlrpc 2021-01-27 16:47:31 UTC

This issue has been addressed in the following products:

  Red Hat Enterprise Linux 8.1 Extended Update Support

Via RHSA-2021:0285 https://access.redhat.com/errata/RHSA-2021:0285

Comment 3 errata-xmlrpc 2021-01-27 17:55:18 UTC

This issue has been addressed in the following products:

  Red Hat Enterprise Linux 8

Via RHSA-2021:0288 https://access.redhat.com/errata/RHSA-2021:0288

Comment 4 errata-xmlrpc 2021-01-27 18:00:17 UTC

This issue has been addressed in the following products:

  Red Hat Enterprise Linux 8.2 Extended Update Support

Via RHSA-2021:0289 https://access.redhat.com/errata/RHSA-2021:0289

Comment 5 errata-xmlrpc 2021-01-27 18:35:24 UTC

This issue has been addressed in the following products:

  Red Hat Enterprise Linux 7

Via RHSA-2021:0290 https://access.redhat.com/errata/RHSA-2021:0290

Comment 6 Product Security DevOps Team 2021-01-27 20:41:45 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-2021-23964

Comment 7 errata-xmlrpc 2021-01-28 16:10:12 UTC

This issue has been addressed in the following products:

  Red Hat Enterprise Linux 7

Via RHSA-2021:0297 https://access.redhat.com/errata/RHSA-2021:0297

Comment 8 errata-xmlrpc 2021-01-28 16:30:01 UTC

This issue has been addressed in the following products:

  Red Hat Enterprise Linux 8

Via RHSA-2021:0298 https://access.redhat.com/errata/RHSA-2021:0298

Comment 9 errata-xmlrpc 2021-01-28 16:35:38 UTC

This issue has been addressed in the following products:

  Red Hat Enterprise Linux 8.2 Extended Update Support

Via RHSA-2021:0299 https://access.redhat.com/errata/RHSA-2021:0299

Comment 10 errata-xmlrpc 2021-02-03 10:43:11 UTC

This issue has been addressed in the following products:

  Red Hat Enterprise Linux 8.1 Extended Update Support

Via RHSA-2021:0397 https://access.redhat.com/errata/RHSA-2021:0397