ESB-2021.1107 – [Win][UNIX/Linux] Google Chrome: Multiple Vulnerabilities

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             AUSCERT External Security Bulletin Redistribution

                               ESB-2021.1107
                    Google Chrome Stable Channel Update
                               31 March 2021

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        AusCERT Security Bulletin Summary
        ---------------------------------

Product:           Google Chrome
Publisher:         Google
Operating System:  UNIX variants (UNIX, Linux, OSX)
                   Windows
Impact/Access:     Denial of Service        -- Remote with User Interaction
                   Access Confidential Data -- Remote with User Interaction
                   Reduced Security         -- Remote with User Interaction
Resolution:        Patch/Upgrade
CVE Names:         CVE-2021-21199 CVE-2021-21198 CVE-2021-21197
                   CVE-2021-21196 CVE-2021-21195 CVE-2021-21194

Original Bulletin: 
   https://chromereleases.googleblog.com/2021/03/stable-channel-update-for-desktop_30.html

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Stable Channel Update for Desktop

Tuesday, March 30, 2021

The Stable channel has been updated to 89.0.4389.114 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 8 security fixes. Below, we highlight fixes that were
contributed by external researchers. Please see the Chrome Security Page for
more information.

[$20000][1181228] High CVE-2021-21194: Use after free in screen capture. 
Reported by Leecraso and Guang Gong of 360 Alpha Lab on 2021-02-23

[$15000][1182647] High CVE-2021-21195: Use after free in V8. Reported by Bohan
Liu (@P4nda20371774) and Moon Liang of Tencent Security Xuanwu Lab on
2021-02-26

[$10000][1175992] High CVE-2021-21196: Heap buffer overflow in TabStrip. 
Reported by Khalil Zhani on 2021-02-08

[$TBD][1173903] High CVE-2021-21197: Heap buffer overflow in TabStrip. Reported
by Abdulrahman Alqabandi, Microsoft Browser Vulnerability Research on
2021-02-03

[$TBD][1184399] High CVE-2021-21198: Out of bounds read in IPC. Reported by
Mark Brand of Google Project Zero on 2021-03-03

[$7500][1179635] High CVE-2021-21199: Use Use after free in Aura. Reported by 
Weipeng Jiang (@Krace) from Codesafe Team of Legendsec at Qi'anxin Group and
Evangelos Foutras

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
channel.As usual, our ongoing internal security work was responsible for a wide
range of fixes:

  o [1193827] 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.

Prudhvikumar Bommana
Google Chrome

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NOTE: Third Party Rights
This security bulletin is provided as a service to AusCERT's members.  As
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NOTE: This is only the original release of the security bulletin.  It may
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Previous advisories and external security bulletins can be retrieved from:

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===========================================================================
Australian Computer Emergency Response Team
The University of Queensland
Brisbane
Qld 4072

Internet Email: auscert@auscert.org.au
Facsimile:      (07) 3365 7031
Telephone:      (07) 3365 4417 (International: +61 7 3365 4417)
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