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AUSCERT External Security Bulletin Redistribution
Stable Channel Update for Desktop
8 October 2021
AusCERT Security Bulletin Summary
Product: Google Chrome
Operating System: UNIX variants (UNIX, Linux, OSX)
Impact/Access: Reduced Security -- Remote with User Interaction
CVE Names: CVE-2021-37980 CVE-2021-37979 CVE-2021-37978
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Stable Channel Update for Desktop
Thursday, October 7, 2021
The Stable channel has been updated to 94.0.4606.81 for Windows, Mac and Linux
which will roll out over the coming days/weeks. Extended stable channel has
also been updated to 94.0.4606.81 for Windows and Mac which will roll out over
the coming days/weeks
A full list of changes in this build is available in the log. Interested in
switching release channels? Find out how here. 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 4 security fixes. Below, we highlight fixes that were
contributed by external researchers. Please see the Chrome Security Page for
[$10000] High CVE-2021-37977 : Use after free in Garbage Collection.
Reported by Anonymous on 2021-09-24
[$7500] High CVE-2021-37978 : Heap buffer overflow in Blink. Reported
by Yangkang (@dnpushme) of 360 ATA on 2021-08-04
[$7500] High CVE-2021-37979 : Heap buffer overflow in WebRTC. Reported
by Marcin Towalski of Cisco Talos on 2021-09-07
[$3000] High CVE-2021-37980 : Inappropriate implementation in Sandbox.
Reported by Yonghwi Jin (@jinmo123) on 2021-09-30
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
Many of our security bugs are detected using AddressSanitizer, MemorySanitizer,
UndefinedBehaviorSanitizer, Control Flow Integrity, libFuzzer, or AFL.
Interested in switching release channels? Find out how here. 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.
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