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
Doc Type: If docs needed, set a value
Doc Text:
The Mozilla Foundation Security Advisory describes this flaw as: When reading from areas partially or fully outside the source resource with WebGL's copyTexSubImage method, the specification requires the returned values be zero. Previously, this memory was uninitialized, leading to potentially sensitive data disclosure.
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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