Bug 1948394 (CVE-2021-23992) - CVE-2021-23992 Mozilla: A crafted OpenPGP key with an invalid user ID could be used to confuse the user
Summary: CVE-2021-23992 Mozilla: A crafted OpenPGP key with an invalid user ID could b...
Keywords:
Status: CLOSED ERRATA
Alias: CVE-2021-23992
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
medium
medium
Target Milestone: ---
Assignee: Red Hat Product Security
QA Contact:
URL:
Whiteboard:
Depends On: 1948387 1948388 1948389 1948390 1948391 1948392
Blocks: 1948385
TreeView+ depends on / blocked
 
Reported: 2021-04-12 06:46 UTC by Doran Moppert
Modified: 2021-04-14 17:07 UTC (History)
5 users (show)

Fixed In Version: thunderbird 78.9.1
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Clone Of:
Environment:
Last Closed: 2021-04-14 16:46:54 UTC


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Description Doran Moppert 2021-04-12 06:46:39 UTC
Thunderbird did not check if the user ID associated with an OpenPGP key has a valid self signature. An attacker may create a crafted version of an OpenPGP key, by either replacing the original user ID, or by adding another user ID. If Thunderbird imports and accepts the crafted key, the Thunderbird user may falsely conclude that the false user ID belongs to the correspondent.



External Reference:

https://www.mozilla.org/en-US/security/advisories/mfsa2021-13/#CVE-2021-23992

Comment 1 Doran Moppert 2021-04-12 06:46:44 UTC
Acknowledgments:

Name: the Mozilla project
Upstream: Neal Walfield

Comment 2 errata-xmlrpc 2021-04-14 11:11:23 UTC
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 8.1 Extended Update Support

Via RHSA-2021:1190 https://access.redhat.com/errata/RHSA-2021:1190

Comment 3 errata-xmlrpc 2021-04-14 14:20:44 UTC
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 8

Via RHSA-2021:1193 https://access.redhat.com/errata/RHSA-2021:1193

Comment 4 errata-xmlrpc 2021-04-14 14:40:35 UTC
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 7

Via RHSA-2021:1192 https://access.redhat.com/errata/RHSA-2021:1192

Comment 5 Product Security DevOps Team 2021-04-14 16:46:54 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-2021-23992

Comment 6 errata-xmlrpc 2021-04-14 17:07:57 UTC
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 8.2 Extended Update Support

Via RHSA-2021:1201 https://access.redhat.com/errata/RHSA-2021:1201


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