Bug 1932112 (CVE-2021-23978) - CVE-2021-23978 Mozilla: Memory safety bugs fixed in Firefox 86 and Firefox ESR 78.8
Summary: CVE-2021-23978 Mozilla: Memory safety bugs fixed in Firefox 86 and Firefox ES...
Keywords:
Status: CLOSED ERRATA
Alias: CVE-2021-23978
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: 1930750 1930751 1930752 1930753 1930754 1931640 1931641 1931642 1931643 1931644
Blocks: 1930748
TreeView+ depends on / blocked
 
Reported: 2021-02-24 01:19 UTC by Doran Moppert
Modified: 2021-10-05 06:55 UTC (History)
6 users (show)

Fixed In Version: firefox 78.8, thunderbird 78.8
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Clone Of:
Environment:
Last Closed: 2021-02-24 19:02:55 UTC
Embargoed:

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Links
System ID Private Priority Status Summary Last Updated
Red Hat Product Errata RHSA-2021:0655 0 None None None 2021-02-24 15:00:26 UTC
Red Hat Product Errata RHSA-2021:0656 0 None None None 2021-02-24 15:41:08 UTC
Red Hat Product Errata RHSA-2021:0657 0 None None None 2021-02-24 15:31:23 UTC
Red Hat Product Errata RHSA-2021:0658 0 None None None 2021-02-24 15:32:29 UTC
Red Hat Product Errata RHSA-2021:0659 0 None None None 2021-02-24 15:30:34 UTC
Red Hat Product Errata RHSA-2021:0660 0 None None None 2021-02-24 15:40:32 UTC
Red Hat Product Errata RHSA-2021:0661 0 None None None 2021-02-24 15:59:01 UTC
Red Hat Product Errata RHSA-2021:0662 0 None None None 2021-02-24 15:46:20 UTC

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
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