Bug 1861646 (CVE-2020-15656) - CVE-2020-15656 Mozilla: Type confusion for special arguments in IonMonkey
Summary: CVE-2020-15656 Mozilla: Type confusion for special arguments in IonMonkey
Keywords:
Status: CLOSED WONTFIX
Alias: CVE-2020-15656
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: 1873379 1870416 1870417 1870418
Blocks: 1861032
TreeView+ depends on / blocked
 
Reported: 2020-07-29 07:03 UTC by Doran Moppert
Modified: 2020-08-28 05:17 UTC (History)
4 users (show)

Fixed In Version: thunderbird 78.1, firefox 78.1, firefox 79
Doc Type: If docs needed, set a value
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Clone Of:
Environment:
Last Closed: 2020-08-20 03:15:23 UTC


Attachments (Terms of Use)


Links
System ID Priority Status Summary Last Updated
Red Hat Product Errata RHSA-2020:3555 None None None 2020-08-26 08:31:19 UTC
Red Hat Product Errata RHSA-2020:3557 None None None 2020-08-26 08:46:13 UTC
Red Hat Product Errata RHSA-2020:3559 None None None 2020-08-26 10:09:30 UTC

Description Doran Moppert 2020-07-29 07:03:21 UTC
JIT optimizations involving the Javascript `arguments` object could confuse later optimizations.
This risk was already mitigated by various precautions in the code, resulting in this bug rated at only moderate severity.



External Reference:

https://www.mozilla.org/en-US/security/advisories/mfsa2020-33/#CVE-2020-15656

Comment 1 Doran Moppert 2020-07-29 07:03:25 UTC
Acknowledgments:

Name: the Mozilla project
Upstream: Carl Smith, working with Google Project Zero

Comment 2 Product Security DevOps Team 2020-08-20 03:15:23 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-2020-15656

Comment 3 errata-xmlrpc 2020-08-26 08:31:16 UTC
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 8.0 Update Services for SAP Solutions

Via RHSA-2020:3555 https://access.redhat.com/errata/RHSA-2020:3555

Comment 4 errata-xmlrpc 2020-08-26 08:46:09 UTC
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 8

Via RHSA-2020:3557 https://access.redhat.com/errata/RHSA-2020:3557

Comment 5 errata-xmlrpc 2020-08-26 10:09:25 UTC
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 8.1 Extended Update Support

Via RHSA-2020:3559 https://access.redhat.com/errata/RHSA-2020:3559


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