Bug 1982015 (CVE-2021-29969) - CVE-2021-29969 Mozilla: IMAP server responses sent by a MITM prior to STARTTLS could be processed
Summary: CVE-2021-29969 Mozilla: IMAP server responses sent by a MITM prior to STARTTL...
Keywords:
Status: CLOSED ERRATA
Alias: CVE-2021-29969
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
Blocks: 1979489
TreeView+ depends on / blocked
 
Reported: 2021-07-14 01:02 UTC by Doran Moppert
Modified: 2021-09-16 05:00 UTC (History)
5 users (show)

Fixed In Version: thunderbird 78.12
Doc Type: If docs needed, set a value
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Clone Of:
Environment:
Last Closed: 2021-07-26 16:47:28 UTC
Embargoed:

Attachments (Terms of Use)


Links
System ID Private Priority Status Summary Last Updated
Red Hat Product Errata RHSA-2021:2881 0 None None None 2021-07-26 12:15:35 UTC
Red Hat Product Errata RHSA-2021:2882 0 None None None 2021-07-26 11:36:56 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 07:47:08 UTC

Description Doran Moppert 2021-07-14 01:02:37 UTC 
If Thunderbird was configured to use STARTTLS for an IMAP connection, and an attacker injected IMAP server responses prior to the completion of the STARTTLS handshake, then Thunderbird didn't ignore the injected data. This could have resulted in Thunderbird showing incorrect information, for example the attacker could have tricked Thunderbird to show folders that didn't exist on the IMAP server.



External Reference:

https://www.mozilla.org/en-US/security/advisories/mfsa2021-30/#CVE-2021-29969
Comment 1 errata-xmlrpc 2021-07-26 11:36:53 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 2 errata-xmlrpc 2021-07-26 12:06:11 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 3 errata-xmlrpc 2021-07-26 12:15:34 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 4 Product Security DevOps Team 2021-07-26 16:47:28 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-2021-29969
Comment 5 errata-xmlrpc 2021-07-27 07:47:10 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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