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                               CERT-Renater

                   Note d'Information No. 2023/VULN537

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DATE                : 13/12/2023

HARDWARE PLATFORM(S): /

OPERATING SYSTEM(S): Systems running Google Chrome versions prior to 
                                 120.0.6099.109.

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https://chromereleases.googleblog.com/2023/12/stable-channel-update-for-desktop_12.html
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Stable Channel Update for Desktop

Tuesday, December 12, 2023

The Stable channel has been updated to 120.0.6099.109 for Mac,Linux
and Windows is coming soon, which will roll out over the coming
days/weeks. A full list of changes in this build is available in
the log.

The Extended Stable channel has been updated to 120.0.6099.109 for
Mac, which will roll out over the coming days/weeks.

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

[$16000][1501326] High CVE-2023-6702: Type Confusion in V8.
Reported by Zhiyi Zhang and Zhunki from Codesafe Team of
Legendsec at Qi'anxin Group on 2023-11-10

[$7000][1502102] High CVE-2023-6703: Use after free in Blink.
Reported by Cassidy Kim(@cassidy6564) on 2023-11-14

[$7000][1504792] High CVE-2023-6704: Use after free in libavif.
Reported by Fudan University on 2023-11-23

[$7000][1505708] High CVE-2023-6705: Use after free in WebRTC.
Reported by Cassidy Kim(@cassidy6564) on 2023-11-28

[$6000][1500921] High CVE-2023-6706: Use after free in FedCM.
Reported by anonymous on 2023-11-09

[$7000][1504036] Medium CVE-2023-6707: Use after free in CSS.
Reported by @ginggilBesel on 2023-11-21

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 [1510677] 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.


Srinivas Sista
Google Chrome


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