Hash: SHA256

             AUSCERT External Security Bulletin Redistribution

              Google Chrome Stable Channel Update for Desktop
                               15 April 2021


        AusCERT Security Bulletin Summary

Product:           Google Chrome
Publisher:         Google
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
                   Provide Misleading Information  -- Remote with User Interaction
                   Access Confidential Data        -- Remote with User Interaction
                   Reduced Security                -- Remote with User Interaction
Resolution:        Patch/Upgrade
CVE Names:         CVE-2021-21221 CVE-2021-21219 CVE-2021-21218
                   CVE-2021-21217 CVE-2021-21216 CVE-2021-21215
                   CVE-2021-21214 CVE-2021-21213 CVE-2021-21212
                   CVE-2021-21211 CVE-2021-21210 CVE-2021-21209
                   CVE-2021-21208 CVE-2021-21207 CVE-2021-21205
                   CVE-2021-21204 CVE-2021-21203 CVE-2021-21202

Original Bulletin: 

- --------------------------BEGIN INCLUDED TEXT--------------------

Stable Channel Update for Desktop

Wednesday, April 14, 2021

 The Chrome team is delighted to announce the promotion of Chrome 90 to the
stable channel for Windows, Mac and Linux. This will roll out over the coming

Chrome 90.0.4430.72 contains a number of fixes and improvements -- a list of
changes is available in the log. Watch out for upcoming Chrome and Chromium
 blog posts about new features and big efforts delivered in 90.

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 37 security fixes. Below, we highlight fixes that were
contributed by external researchers. Please see the Chrome Security Page for
more information.

[$20000][1025683] High CVE-2021-21201: Use after free in permissions. Reported
by Gengming Liu, Jianyu Chen at Tencent Keen Security Lab on 2019-11-18

[$10000][1188889] High CVE-2021-21202: Use after free in extensions. Reported
by David Erceg on 2021-03-16

[$5000][1192054] High CVE-2021-21203: Use after free in Blink. Reported by
asnine on 2021-03-24

[$1000][1189926] High CVE-2021-21204: Use after free in Blink. Reported by
Chelse Tsai-Simek, Jeanette Ulloa, and Emily Voigtlander of Seesaw on

[$TBD][1165654] High CVE-2021-21205: Insufficient policy enforcement in
navigation. Reported by Alison Huffman, Microsoft Browser Vulnerability
Research on 2021-01-12

[$TBD][1195333] High CVE-2021-21221: Insufficient validation of untrusted input
in Mojo. Reported by Guang Gong of Alpha Lab, Qihoo 360 on 2021-04-02

[$5000][1185732] Medium CVE-2021-21207: Use after free in IndexedDB. Reported
by koocola (@alo_cook) and Nan Wang (@eternalsakura13) of 360 Alpha Lab on

[$3000][1039539] Medium CVE-2021-21208: Insufficient data validation in QR
scanner. Reported by Ahmed Elsobky (@0xsobky) on 2020-01-07

[$3000][1143526] Medium CVE-2021-21209: Inappropriate implementation in
storage. Reported by Tom Van Goethem (@tomvangoethem) on 2020-10-29

[$3000][1184562] Medium CVE-2021-21210: Inappropriate implementation in
Network. Reported by @bananabr on 2021-03-04

[$2000][1103119] Medium CVE-2021-21211: Inappropriate implementation in
Navigation. Reported by Akash Labade (m0ns7er) on 2020-07-08

[$500][1145024] Medium CVE-2021-21212: Incorrect security UI in Network Config
UI. Reported by Hugo Hue and Sze Yiu Chau of the Chinese University of Hong
Kong on 2020-11-03

[$N/A][1161806] Medium CVE-2021-21213: Use after free in WebMIDI. Reported by
raven (@raid_akame)  on 2020-12-25

[$TBD][1170148] Medium CVE-2021-21214: Use after free in Network API. Reported
by Anonymous on 2021-01-24

[$TBD][1172533] Medium CVE-2021-21215: Inappropriate implementation in
Autofill. Reported by Abdulrahman Alqabandi, Microsoft Browser Vulnerability
Research on 2021-01-30

[$TBD][1173297] Medium CVE-2021-21216: Inappropriate implementation in
Autofill. Reported by Abdulrahman Alqabandi, Microsoft Browser Vulnerability
Research on 2021-02-02

[$500][1166462] Low CVE-2021-21217: Uninitialized Use in PDFium. Reported by
Zhou Aiting (@zhouat1) of Qihoo 360 Vulcan Team on 2021-01-14

[$500][1166478] Low CVE-2021-21218: Uninitialized Use in PDFium. Reported by
Zhou Aiting (@zhouat1) of Qihoo 360 Vulcan Team on 2021-01-14

[$500][1166972] Low CVE-2021-21219: Uninitialized Use in PDFium. Reported by
Zhou Aiting (@zhouat1) of Qihoo 360 Vulcan Team on 2021-01-15

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 [1198709] 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.

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.

Thank you,
Srinivas Sista

- --------------------------END INCLUDED TEXT--------------------

You have received this e-mail bulletin as a result of your organisation's
registration with AusCERT. The mailing list you are subscribed to is
maintained within your organisation, so if you do not wish to continue
receiving these bulletins you should contact your local IT manager. If
you do not know who that is, please send an email to auscert@auscert.org.au
and we will forward your request to the appropriate person.

NOTE: Third Party Rights
This security bulletin is provided as a service to AusCERT's members.  As
AusCERT did not write the document quoted above, AusCERT has had no control
over its content. The decision to follow or act on information or advice
contained in this security bulletin is the responsibility of each user or
organisation, and should be considered in accordance with your organisation's
site policies and procedures. AusCERT takes no responsibility for consequences
which may arise from following or acting on information or advice contained in
this security bulletin.

NOTE: This is only the original release of the security bulletin.  It may
not be updated when updates to the original are made.  If downloading at
a later date, it is recommended that the bulletin is retrieved directly
from the author's website to ensure that the information is still current.

Contact information for the authors of the original document is included
in the Security Bulletin above.  If you have any questions or need further
information, please contact them directly.

Previous advisories and external security bulletins can be retrieved from:


Australian Computer Emergency Response Team
The University of Queensland
Qld 4072

Internet Email: auscert@auscert.org.au
Facsimile:      (07) 3365 7031
Telephone:      (07) 3365 4417 (International: +61 7 3365 4417)
                AusCERT personnel answer during Queensland business hours
                which are GMT+10:00 (AEST).
                On call after hours for member emergencies only.
Comment: http://www.auscert.org.au/render.html?it=1967