Bug 1788723 (CVE-2019-17016) - CVE-2019-17016 Mozilla: Bypass of @namespace CSS sanitization during pasting
Summary: CVE-2019-17016 Mozilla: Bypass of @namespace CSS sanitization during pasting
Keywords:
Status: CLOSED ERRATA
Alias: CVE-2019-17016
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: 1788028 1788029 1788030 1788031 1788032 1788033 1790248 1790249 1790250 1790251 1790252 1790253
Blocks: 1787590
TreeView+ depends on / blocked
 
Reported: 2020-01-07 22:36 UTC by Doran Moppert
Modified: 2022-11-14 05:01 UTC (History)
5 users (show)

Fixed In Version: firefox 68.4, thunderbird 68.4.1
Doc Type: No Doc Update
Doc Text:
Clone Of:
Environment:
Last Closed: 2020-01-13 20:09:30 UTC
Embargoed:

Attachments (Terms of Use)


Links
System ID Private Priority Status Summary Last Updated
Red Hat Product Errata RHSA-2020:0085 0 None None None 2020-01-13 14:38:44 UTC
Red Hat Product Errata RHSA-2020:0086 0 None None None 2020-01-13 14:19:43 UTC
Red Hat Product Errata RHSA-2020:0111 0 None None None 2020-01-14 18:39:00 UTC
Red Hat Product Errata RHSA-2020:0120 0 None None None 2020-01-16 11:57:55 UTC
Red Hat Product Errata RHSA-2020:0123 0 None None None 2020-01-16 11:50:09 UTC
Red Hat Product Errata RHSA-2020:0127 0 None None None 2020-01-16 12:52:56 UTC
Red Hat Product Errata RHSA-2020:0292 0 None None None 2020-01-30 09:02:23 UTC
Red Hat Product Errata RHSA-2020:0295 0 None None None 2020-01-30 10:02:34 UTC

Description Doran Moppert 2020-01-07 22:36:26 UTC 
When pasting a `<style>` tag from the clipboard into a rich text editor, the CSS sanitizer incorrectly rewrites a @namespace rule. This could allow for injection into certain types of websites resulting in data exfiltration.



External Reference:

https://www.mozilla.org/en-US/security/advisories/mfsa2020-02/#CVE-2019-17016
Comment 1 Doran Moppert 2020-01-07 22:36:29 UTC 
Acknowledgments:

Name: the Mozilla project
Upstream: Michał Bentkowski
Comment 2 errata-xmlrpc 2020-01-13 14:19:42 UTC 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 6

Via RHSA-2020:0086 https://access.redhat.com/errata/RHSA-2020:0086
Comment 3 errata-xmlrpc 2020-01-13 14:38:43 UTC 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 7

Via RHSA-2020:0085 https://access.redhat.com/errata/RHSA-2020:0085
Comment 4 Product Security DevOps Team 2020-01-13 20:09:30 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-2019-17016
Comment 6 errata-xmlrpc 2020-01-14 18:38:59 UTC 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 8

Via RHSA-2020:0111 https://access.redhat.com/errata/RHSA-2020:0111
Comment 7 errata-xmlrpc 2020-01-16 11:50:06 UTC 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 6

Via RHSA-2020:0123 https://access.redhat.com/errata/RHSA-2020:0123
Comment 8 errata-xmlrpc 2020-01-16 11:57:53 UTC 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 7

Via RHSA-2020:0120 https://access.redhat.com/errata/RHSA-2020:0120
Comment 9 errata-xmlrpc 2020-01-16 12:52:55 UTC 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 8

Via RHSA-2020:0127 https://access.redhat.com/errata/RHSA-2020:0127
Comment 10 errata-xmlrpc 2020-01-30 09:02:21 UTC 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 8.0 Update Services for SAP Solutions

Via RHSA-2020:0292 https://access.redhat.com/errata/RHSA-2020:0292
Comment 11 errata-xmlrpc 2020-01-30 10:02:33 UTC 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 8.0 Update Services for SAP Solutions

Via RHSA-2020:0295 https://access.redhat.com/errata/RHSA-2020:0295
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