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AUSCERT External Security Bulletin Redistribution
Stable Channel Update for Desktop
17 February 2021
AusCERT Security Bulletin Summary
Product: Google Chrome
Operating System: Windows
UNIX variants (UNIX, Linux, OSX)
Impact/Access: Execute Arbitrary Code/Commands -- Unknown/Unspecified
Denial of Service -- Unknown/Unspecified
Reduced Security -- Unknown/Unspecified
CVE Names: CVE-2021-21157 CVE-2021-21156 CVE-2021-21155
CVE-2021-21154 CVE-2021-21153 CVE-2021-21151
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Release updates from the Chrome team
Stable Channel Update for Desktop
Tuesday, February 16, 2021
The Stable channel has been updated to 88.0.4324.182 for Windows, Mac and
Linux 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 10 security fixes. Below, we highlight fixes that were
contributed by external researchers. Please see the Chrome Security Page for
[$20000] High CVE-2021-21149: Stack overflow in Data Transfer.
Reported by Ryoya Tsukasaki on 2020-10-14
[$20000] High CVE-2021-21150: Use after free in Downloads. Reported by
Woojin Oh(@pwn_expoit) of STEALIEN on 2021-01-29
[$15000] High CVE-2021-21151: Use after free in Payments. Reported by
Khalil Zhani on 2021-01-12
[$5000] High CVE-2021-21152: Heap buffer overflow in Media. Reported
by Anonymous on 2021-01-14
[$1000] High CVE-2021-21153: Stack overflow in GPU Process. Reported
by Jan Ruge of ERNW GmbH on 2020-12-06
[$TBD] High CVE-2021-21154: Heap buffer overflow in Tab Strip .
Reported by Abdulrahman Alqabandi, Microsoft Browser Vulnerability Research on
[$TBD] High CVE-2021-21155: Heap buffer overflow in Tab Strip .
Reported by Khalil Zhani on 2021-02-07
[$TBD] High CVE-2021-21156: Heap buffer overflow in V8. Reported by
Sergei Glazunov of Google Project Zero on 2021-02-11
[$TBD] Medium CVE-2021-21157: Use after free in Web Sockets. Reported
by Anonymous on 2021-01-26
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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