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AUSCERT External Security Bulletin Redistribution
Google Chrome Update
6 November 2020
AusCERT Security Bulletin Summary
Product: Google Chrome
Operating System: Windows
UNIX variants (UNIX, Linux, OSX)
Impact/Access: Execute Arbitrary Code/Commands -- Remote with User Interaction
Increased Privileges -- Remote with User Interaction
Denial of Service -- Remote with User Interaction
Reduced Security -- Remote with User Interaction
CVE Names: CVE-2020-16011 CVE-2020-16009 CVE-2020-16008
CVE-2020-16007 CVE-2020-16006 CVE-2020-16005
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Release updates from the Chrome team
Stable Channel Update for Desktop
Monday, November 2, 2020
The stable channel has been updated to 86.0.4240.183 for Windows, Mac & Linux
which will roll out over the coming days/weeks.
A list of all changes is available in the log. Interested in switching release
channels?Find out how. If you find a new issue, please let us know by filing a
bug. The community help forum is also a great place to reach out for help or
learn about common issues.
Security Fixes and Rewards
Note: Access to bug details and links may be kept
restricted until a majority of users are updated with a fix. We will also
retain restrictions if the bug exists in a third party library that other
projects similarly depend on, but haven't yet fixed.
This update includes 10 security fixes.
Below, we highlight fixes that were contributed by external researchers.
Please see the Chrome Security Page for more information.
[$15000] High CVE-2020-16004: Use after free in user interface.
Reported by Leecraso and Guang Gong of 360 Alpha Lab working with 360 BugCloud on
[$15000] High CVE-2020-16005: Insufficient policy
enforcement in ANGLE. Reported by Jaehun Jeong(@n3sk) of Theori on 2020-10-16
[$5000] High CVE-2020-16006: Inappropriate implementation in V8.
Reported by Bill Parks on 2020-09-29
[$1000] High CVE-2020-16007:
Insufficient data validation in installer. Reported by Abdelhamid Naceri
(halov) on 2020-09-04
[$TBD] High CVE-2020-16008: Stack buffer overflow
in WebRTC. Reported by Tolya Korniltsev on 2020-10-01
CVE-2020-16009: Inappropriate implementation in V8. Reported by Clement Lecigne
of Google's Threat Analysis Group and Samuel Gross of Google Project Zero on
[$NA] High CVE-2020-16011: Heap buffer overflow in UI on
Windows. Reported by Sergei Glazunov of Google Project Zero on 2020-11-01
Google is aware of reports that an exploit for CVE-2020-16009 exists in the
We would also like to thank all security researchers that worked with us during
the development cycle to prevent security bugs from ever reaching the stable
As usual, our ongoing internal security work was responsible for a wide range
 Various fixes from internal audits, fuzzing and other initiatives
Many of our security bugs are detected using AddressSanitizer, MemorySanitizer,
UndefinedBehaviorSanitizer, Control Flow Integrity, libFuzzer, or AFL.
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