Bug 1982014 (CVE-2021-29976) - CVE-2021-29976 Mozilla: Memory safety bugs fixed in Firefox 90 and Firefox ESR 78.12
Summary: CVE-2021-29976 Mozilla: Memory safety bugs fixed in Firefox 90 and Firefox ES...
Keywords:
Status: CLOSED ERRATA
Alias: CVE-2021-29976
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: 1979491 1979492 1979493 1979494 1979495 1979496 1979507 1979508 1979509 1979511 1979512 1979513 1979566
Blocks: 1979487
TreeView+ depends on / blocked
 
Reported: 2021-07-14 00:53 UTC by Doran Moppert
Modified: 2021-09-16 05:00 UTC (History)
5 users (show)

Fixed In Version: firefox 78.12, thunderbird 78.12
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Clone Of:
Environment:
Last Closed: 2021-07-15 15:54:50 UTC
Embargoed:

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System ID Private Priority Status Summary Last Updated
Red Hat Product Errata RHSA-2021:2740 0 None None None 2021-07-15 10:22:50 UTC
Red Hat Product Errata RHSA-2021:2741 0 None None None 2021-07-15 10:49:56 UTC
Red Hat Product Errata RHSA-2021:2742 0 None None None 2021-07-15 11:35:54 UTC
Red Hat Product Errata RHSA-2021:2743 0 None None None 2021-07-15 11:52:49 UTC
Red Hat Product Errata RHSA-2021:2881 0 None None None 2021-07-26 12:15:26 UTC
Red Hat Product Errata RHSA-2021:2882 0 None None None 2021-07-26 11:36:51 UTC
Red Hat Product Errata RHSA-2021:2883 0 None None None 2021-07-26 12:06:10 UTC
Red Hat Product Errata RHSA-2021:2914 0 None None None 2021-07-27 07:47:07 UTC

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
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