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 19 security fixes. Below, we highlight fixes that were contributed by external researchers. Please see the Chrome Security Page for more information.
[$3000][1180126] High CVE-2021-30506: Incorrect security UI in Web App Installs. Reported by @retsew0x01 on 2021-02-19
[$NA][1178202] High CVE-2021-30507: Inappropriate implementation in Offline. Reported by Alison Huffman, Microsoft Browser Vulnerability Research on 2021-02-14
[$TBD][1195340] High CVE-2021-30508: Heap buffer overflow in Media Feeds. Reported by Leecraso and Guang Gong of 360 Alpha Lab on 2021-04-02
[$TBD][1196309] High CVE-2021-30509: Out of bounds write in Tab Strip. Reported by David Erceg on 2021-04-06
[$TBD][1197436] High CVE-2021-30510: Race in Aura. Reported by Weipeng Jiang (@Krace) from Codesafe Team of Legendsec at Qi'anxin Group on 2021-04-09
[$TBD][1197875] High CVE-2021-30511: Out of bounds read in Tab Groups. Reported by David Erceg on 2021-04-10
[$TBD][1200019] High CVE-2021-30512: Use after free in Notifications. Reported by ZhanJia Song on 2021-04-17
[$NA][1200490] High CVE-2021-30513: Type Confusion in V8. Reported by Man Yue Mo of GitHub Security Lab on 2021-04-19
[$TBD][1200766] High CVE-2021-30514: Use after free in Autofill. Reported by koocola (@alo_cook) and Nan Wang (@eternalsakura13) of 360 Alpha Lab on 2021-04-20
[$TBD][1201073] High CVE-2021-30515: Use after free in File API. Reported by Rong Jian and Guang Gong of 360 Alpha Lab on 2021-04-21
[$TBD][1201446] High CVE-2021-30516: Heap buffer overflow in History. Reported by ZhanJia Song on 2021-04-22
[$TBD][1203122] High CVE-2021-30517: Type Confusion in V8. Reported by laural on 2021-04-27
[$NA][1203590] High CVE-2021-30518: Heap buffer overflow in Reader Mode. Reported by Jun Kokatsu, Microsoft Browser Vulnerability Research on 2021-04-28
[$15000][1194058] Medium CVE-2021-30519: Use after free in Payments. Reported by asnine on 2021-03-30
[$10000][1193362] Medium CVE-2021-30520: Use after free in Tab Strip. Reported by Khalil Zhani on 2021-04-03
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.
