Bug 1920651 (CVE-2021-23964) - CVE-2021-23964 Mozilla: Memory safety bugs fixed in Firefox 85 and Firefox ESR 78.7
Summary: CVE-2021-23964 Mozilla: Memory safety bugs fixed in Firefox 85 and Firefox ES...
Keywords:
Status: CLOSED ERRATA
Alias: CVE-2021-23964
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
high
high
Target Milestone: ---
Assignee: Red Hat Product Security
QA Contact:
URL:
Whiteboard:
Depends On: 1919188 1919189 1919190 1919191 1919192 1920635 1920636 1920637 1920638 1920640
Blocks: 1919186
TreeView+ depends on / blocked
 
Reported: 2021-01-26 19:30 UTC by msiddiqu
Modified: 2021-03-05 10:33 UTC (History)
6 users (show)

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.
Clone Of:
Environment:
Last Closed: 2021-01-27 20:41:45 UTC
Embargoed:

Attachments (Terms of Use)


Links
System ID Private Priority Status Summary Last Updated
Red Hat Product Errata RHSA-2021:0285 0 None None None 2021-01-27 16:47:32 UTC
Red Hat Product Errata RHSA-2021:0288 0 None None None 2021-01-27 17:55:19 UTC
Red Hat Product Errata RHSA-2021:0289 0 None None None 2021-01-27 18:00:19 UTC
Red Hat Product Errata RHSA-2021:0290 0 None None None 2021-01-27 18:35:26 UTC
Red Hat Product Errata RHSA-2021:0297 0 None None None 2021-01-28 16:10:13 UTC
Red Hat Product Errata RHSA-2021:0298 0 None None None 2021-01-28 16:30:03 UTC
Red Hat Product Errata RHSA-2021:0299 0 None None None 2021-01-28 16:35:39 UTC
Red Hat Product Errata RHSA-2021:0397 0 None None None 2021-02-03 10:43:14 UTC

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
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