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.
[$21000][1234764] High CVE-2021-30598: Type Confusion in V8. Reported by Manfred Paul on 2021-07-30
[$21000][1234770] High CVE-2021-30599: Type Confusion in V8. Reported by Manfred Paul on 2021-07-30
[$20000][1231134] High CVE-2021-30600: Use after free in Printing. Reported by Leecraso and Guang Gong of 360 Alpha Lab on 2021-07-20
[$20000][1234009] High CVE-2021-30601: Use after free in Extensions API. Reported by koocola(@alo_cook) and Nan Wang(@eternalsakura13) of 360 Alpha Lab on 2021-07-28
[$TBD][1230767] High CVE-2021-30602: Use after free in WebRTC. Reported by Marcin Towalski of Cisco Talos on 2021-07-19
[$NA][1233564] High CVE-2021-30603: Race in WebAudio. Reported by Sergei Glazunov of Google Project Zero on 2021-07-27
[$TBD][1234829] High CVE-2021-30604: Use after free in ANGLE. Reported by Seong-Hwan Park (SeHwa) of SecunologyLab on 2021-07-30
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:
Many of our security bugs are detected using AddressSanitizer, MemorySanitizer, UndefinedBehaviorSanitizer, Control Flow Integrity, libFuzzer, or AFL.
