Bug 1801956 (CVE-2020-6794)

Summary:	CVE-2020-6794 Mozilla: Setting a master password post-Thunderbird 52 does not delete unencrypted previously stored passwords
Product:	[Other] Security Response	Reporter:	Doran Moppert <dmoppert>
Component:	vulnerability	Assignee:	Red Hat Product Security <security-response-team>
Status:	CLOSED ERRATA	QA Contact:
Severity:	medium	Docs Contact:
Priority:	medium
Version:	unspecified	CC:	cschalle, gecko-bugs-nobody, jhorak, stransky
Target Milestone:	---	Keywords:	Security
Target Release:	---
Hardware:	All
OS:	Linux
Whiteboard:
Fixed In Version:	thunderbird 68.5	Doc Type:	No Doc Update
Doc Text:		Story Points:	---
Clone Of:		Environment:
Last Closed:	2020-02-21 03:49:52 UTC	Type:	---
Regression:	---	Mount Type:	---
Documentation:	---	CRM:
Verified Versions:		Category:	---
oVirt Team:	---	RHEL 7.3 requirements from Atomic Host:
Cloudforms Team:	---	Target Upstream Version:
Embargoed:
Bug Depends On:	1801946, 1801947, 1801948, 1801949, 1801950, 1801951
Bug Blocks:	1801944

Description Doran Moppert 2020-02-11 23:57:41 UTC

If a user saved passwords before Thunderbird 60 and then later set a master password, an unencrypted copy of these passwords is still accessible. This is because the older stored password file was not deleted when the data was copied to a new format starting in Thunderbird 60. The new master password is added only on the new file. This could allow the exposure of stored password data outside of user expectations.



External Reference:

https://www.mozilla.org/en-US/security/advisories/mfsa2020-07/#CVE-2020-6794

Comment 1 Doran Moppert 2020-02-11 23:57:45 UTC

Acknowledgments:

Name: the Mozilla project
Upstream: Jurgen Gaeremyn

Comment 2 errata-xmlrpc 2020-02-20 22:15:41 UTC

This issue has been addressed in the following products:

  Red Hat Enterprise Linux 8.0 Update Services for SAP Solutions

Via RHSA-2020:0565 https://access.redhat.com/errata/RHSA-2020:0565

Comment 3 Product Security DevOps Team 2020-02-21 03:49:52 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-2020-6794

Comment 4 errata-xmlrpc 2020-02-24 12:16:49 UTC

This issue has been addressed in the following products:

  Red Hat Enterprise Linux 8

Via RHSA-2020:0577 https://access.redhat.com/errata/RHSA-2020:0577

Comment 5 errata-xmlrpc 2020-02-24 12:31:54 UTC

This issue has been addressed in the following products:

  Red Hat Enterprise Linux 6

Via RHSA-2020:0574 https://access.redhat.com/errata/RHSA-2020:0574

Comment 6 errata-xmlrpc 2020-02-24 12:49:01 UTC

This issue has been addressed in the following products:

  Red Hat Enterprise Linux 7

Via RHSA-2020:0576 https://access.redhat.com/errata/RHSA-2020:0576