Bug 1748654 (CVE-2019-11743) - CVE-2019-11743 Mozilla: Cross-origin access to unload event attributes
Summary: CVE-2019-11743 Mozilla: Cross-origin access to unload event attributes
Keywords:
Status: CLOSED ERRATA
Alias: CVE-2019-11743
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: 1745828 1745829 1745830 1745831 1745832 1748670 1749598 1749599 1749601
Blocks: 1745825
TreeView+ depends on / blocked
 
Reported: 2019-09-04 00:41 UTC by Doran Moppert
Modified: 2021-02-26 07:40 UTC (History)
5 users (show)

Fixed In Version: firefox 60.9, firefox 68.1, thunderbird 60.9
Doc Type: If docs needed, set a value
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Clone Of:
Environment:
Last Closed: 2019-09-05 01:07:23 UTC
Embargoed:

Attachments (Terms of Use)


Links
System ID Private Priority Status Summary Last Updated
Red Hat Product Errata RHSA-2019:2663 0 None None None 2019-09-04 20:12:26 UTC
Red Hat Product Errata RHSA-2019:2694 0 None None None 2019-09-10 09:12:57 UTC
Red Hat Product Errata RHSA-2019:2729 0 None None None 2019-09-11 09:56:59 UTC
Red Hat Product Errata RHSA-2019:2773 0 None None None 2019-09-19 03:38:56 UTC
Red Hat Product Errata RHSA-2019:2774 0 None None None 2019-09-16 14:22:22 UTC
Red Hat Product Errata RHSA-2019:2807 0 None None None 2019-09-19 06:25:11 UTC

Description Doran Moppert 2019-09-04 00:41:13 UTC 
Navigation events were not fully adhering to the W3C's "Navigation-Timing Level 2" draft specification in some instances for the `unload` event, which restricts access to detailed timing attributes to only be same-origin. This resulted in potential cross-origin information exposure of history through timing side-channel attacks.



External Reference:

https://www.mozilla.org/en-US/security/advisories/mfsa2019-27/#CVE-2019-11743
Comment 1 Doran Moppert 2019-09-04 00:41:15 UTC 
Acknowledgments:

Name: the Mozilla project
Upstream: Yoav Weiss
Comment 3 errata-xmlrpc 2019-09-04 20:12:25 UTC 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 8

Via RHSA-2019:2663 https://access.redhat.com/errata/RHSA-2019:2663
Comment 4 Product Security DevOps Team 2019-09-05 01:07:23 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-2019-11743
Comment 5 errata-xmlrpc 2019-09-10 09:12:56 UTC 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 6

Via RHSA-2019:2694 https://access.redhat.com/errata/RHSA-2019:2694
Comment 6 errata-xmlrpc 2019-09-11 09:56:59 UTC 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 7

Via RHSA-2019:2729 https://access.redhat.com/errata/RHSA-2019:2729
Comment 7 Doran Moppert 2019-09-16 08:31:38 UTC 
Statement:

In general, this flaw cannot be exploited through email in Thunderbird because scripting is disabled when reading mail, but it may present a risk in browser-like contexts.
Comment 8 errata-xmlrpc 2019-09-16 14:22:20 UTC 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 8

Via RHSA-2019:2774 https://access.redhat.com/errata/RHSA-2019:2774
Comment 9 errata-xmlrpc 2019-09-19 03:38:54 UTC 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 7

Via RHSA-2019:2773 https://access.redhat.com/errata/RHSA-2019:2773
Comment 10 errata-xmlrpc 2019-09-19 06:25:10 UTC 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 6

Via RHSA-2019:2807 https://access.redhat.com/errata/RHSA-2019:2807
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