Bug 1821674 (CVE-2020-6821) - CVE-2020-6821 Mozilla: Uninitialized memory could be read when using the WebGL copyTexSubImage method
Summary: CVE-2020-6821 Mozilla: Uninitialized memory could be read when using the WebG...
Keywords:
Status: CLOSED ERRATA
Alias: CVE-2020-6821
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: 1820211 1820212 1820213 1820214 1820215 1820216 1823642 1823643 1823644 1823645 1823646 1823647 1823648
Blocks: 1820209
TreeView+ depends on / blocked
 
Reported: 2020-04-07 12:03 UTC by Marian Rehak
Modified: 2021-02-16 20:19 UTC (History)
5 users (show)

Fixed In Version: firefox 68.7, thunderbird 68.7.0
Clone Of:
Environment:
Last Closed: 2020-04-08 16:31:50 UTC
Embargoed:

Attachments (Terms of Use)


Links
System ID Private Priority Status Summary Last Updated
Red Hat Product Errata RHSA-2020:1404 0 None None None 2020-04-08 13:36:21 UTC
Red Hat Product Errata RHSA-2020:1406 0 None None None 2020-04-08 16:27:29 UTC
Red Hat Product Errata RHSA-2020:1420 0 None None None 2020-04-09 10:02:30 UTC
Red Hat Product Errata RHSA-2020:1429 0 None None None 2020-04-14 07:50:51 UTC
Red Hat Product Errata RHSA-2020:1488 0 None None None 2020-04-16 10:03:05 UTC
Red Hat Product Errata RHSA-2020:1489 0 None None None 2020-04-16 10:03:30 UTC
Red Hat Product Errata RHSA-2020:1495 0 None None None 2020-04-16 20:53:53 UTC
Red Hat Product Errata RHSA-2020:1496 0 None None None 2020-04-16 20:29:46 UTC

Description Marian Rehak 2020-04-07 12:03:12 UTC 
When reading from areas partially or fully outside the source resource with WebGL's <code>copyTexSubImage</code> method, the specification requires the returned values be zero. Previously, this memory was uninitialized, leading to potentially sensitive data disclosure.
Comment 1 msiddiqu 2020-04-08 00:24:20 UTC 
Acknowledgments:

Name: the Mozilla project
Upstream: Jeff Gilbert, Kenneth Russell
Comment 2 msiddiqu 2020-04-08 00:24:23 UTC 
External References:

https://www.mozilla.org/en-US/security/advisories/mfsa2020-13/#CVE-2020-6821
Comment 3 errata-xmlrpc 2020-04-08 13:36:20 UTC 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 8.0 Update Services for SAP Solutions

Via RHSA-2020:1404 https://access.redhat.com/errata/RHSA-2020:1404
Comment 4 errata-xmlrpc 2020-04-08 16:27:28 UTC 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 8

Via RHSA-2020:1406 https://access.redhat.com/errata/RHSA-2020:1406
Comment 5 Product Security DevOps Team 2020-04-08 16:31:50 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-2020-6821
Comment 6 errata-xmlrpc 2020-04-09 10:02:28 UTC 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 7

Via RHSA-2020:1420 https://access.redhat.com/errata/RHSA-2020:1420
Comment 7 errata-xmlrpc 2020-04-14 07:50:50 UTC 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 6

Via RHSA-2020:1429 https://access.redhat.com/errata/RHSA-2020:1429
Comment 8 errata-xmlrpc 2020-04-16 10:03:03 UTC 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 6

Via RHSA-2020:1488 https://access.redhat.com/errata/RHSA-2020:1488
Comment 9 errata-xmlrpc 2020-04-16 10:03:28 UTC 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 7

Via RHSA-2020:1489 https://access.redhat.com/errata/RHSA-2020:1489
Comment 10 errata-xmlrpc 2020-04-16 20:29:45 UTC 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 8.0 Update Services for SAP Solutions

Via RHSA-2020:1496 https://access.redhat.com/errata/RHSA-2020:1496
Comment 11 errata-xmlrpc 2020-04-16 20:53:52 UTC 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 8

Via RHSA-2020:1495 https://access.redhat.com/errata/RHSA-2020:1495
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