The Stable channel has been updated to 121.0.6167.85 for Mac and Linux and
121.0.6167.85/.86 to Windows which will roll out over the coming days/weeks. A
full list of changes in this build is available in the log.

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

[$11000][1505080] High CVE-2024-0807: Use after free in WebAudio. Reported by
Huang Xilin of Ant Group Light-Year Security Lab on 2023-11-25

[$9000][1484394] High CVE-2024-0812: Inappropriate implementation in
Accessibility. Reported by Anonymous on 2023-09-19

[$6000][1504936] High CVE-2024-0808: Integer underflow in WebUI. Reported by
Lyra Rebane (rebane2001) on 2023-11-24

[$2000][1496250] Medium CVE-2024-0810: Insufficient policy enforcement in
DevTools. Reported by Shaheen Fazim on 2023-10-26

[$1000][1463935] Medium CVE-2024-0814: Incorrect security UI in Payments.
Reported by Muneaki Nishimura (nishimunea) on 2023-07-11

[$1000][1477151] Medium CVE-2024-0813: Use after free in Reading Mode. Reported
by @retsew0x01 on 2023-08-30

[$1000][1505176] Medium CVE-2024-0806: Use after free in Passwords. Reported by
18楼梦想改造家 on 2023-11-25

[TBD][1514925] Medium CVE-2024-0805: Inappropriate implementation in Downloads.
Reported by Om Apip on 2024-01-01

[TBD][1515137] Medium CVE-2024-0804: Insufficient policy enforcement in iOS
Security UI. Reported by Narendra Bhati of Suma Soft Pvt. Ltd. Pune (India)  on
2024-01-03

[N/A][1494490] Low CVE-2024-0811: Inappropriate implementation in Extensions
API. Reported by Jann Horn of Google Project Zero on 2023-10-21

[TBD][1497985] Low CVE-2024-0809: Inappropriate implementation in Autofill.
Reported by Ahmed ElMasry on 2023-10-31

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:

    [1520680] 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.