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 38 security fixes. Below, we highlight fixes that were contributed by external researchers. Please see the Chrome Security Page for more information.
[$15000][1210985] High CVE-2021-30565: Out of bounds write in Tab Groups. Reported by David Erceg on 2021-05-19
[$10000][1202661] High CVE-2021-30566: Stack buffer overflow in Printing. Reported by Leecraso and Guang Gong of 360 Alpha Lab on 2021-04-26
[$10000][1211326] High CVE-2021-30567: Use after free in DevTools. Reported by DDV_UA on 2021-05-20
[$8500][1219886] High CVE-2021-30568: Heap buffer overflow in WebGL. Reported by Yangkang (@dnpushme) of 360 ATA on 2021-06-15
[$500][1218707] High CVE-2021-30569: Use after free in sqlite. Reported by Chris Salls (@salls) of Makai Security on 2021-06-11
[$TBD][1101897] High CVE-2021-30571: Insufficient policy enforcement in DevTools. Reported by David Erceg on 2020-07-03
[$TBD][1214234] High CVE-2021-30572: Use after free in Autofill. Reported by Weipeng Jiang (@Krace) from Codesafe Team of Legendsec at Qi'anxin Group on 2021-05-28
[$TBD][1216822] High CVE-2021-30573: Use after free in GPU. Reported by Security For Everyone Team - https://securityforeveryone.com on 2021-06-06
[$20000][1224238] High CVE-2021-4320: Use after free in Blink. Reported by raven at KunLun lab on 2021-06-28
[$TBD][1227315] High CVE-2021-30574: Use after free in protocol handling. Reported by Leecraso and Guang Gong of 360 Alpha Lab on 2021-07-08
[$15000][1213313] Medium CVE-2021-30575: Out of bounds read in Autofill. Reported by Leecraso and Guang Gong of 360 Alpha Lab on 2021-05-26
[$10000][1194896] Medium CVE-2021-30576: Use after free in DevTools. Reported by David Erceg on 2021-04-01
[$10000][1183137][1204811]Medium CVE-2021-30577: Insufficient policy enforcement in Installer. Reported by Abdelhamid Naceri on 2021-02-28 and Jan van der Put (REQON B.V) on 2021-05-01
[$7500][1201074] Medium CVE-2021-30578: Uninitialized Use in Media. Reported by Chaoyuan Peng on 2021-04-21
[$7500][1207277] Medium CVE-2021-30579: Use after free in UI framework. Reported by Weipeng Jiang (@Krace) from Codesafe Team of Legendsec at Qi'anxin Group on 2021-05-10
[$5000][1189092] Medium CVE-2021-30580: Insufficient policy enforcement in Android intents. Reported by @retsew0x01 on 2021-03-17
[$5000][1194431] Medium CVE-2021-30581: Use after free in DevTools. Reported by David Erceg on 2021-03-31
[$5000][1205981] Medium CVE-2021-30582: Inappropriate implementation in Animation. Reported by George Liu on 2021-05-05
[$3000][1179290] Medium CVE-2021-30583: Insufficient policy enforcement in image handling on Windows. Reported by Muneaki Nishimura (nishimunea) on 2021-02-17
[$3000][1213350] Medium CVE-2021-30584: Incorrect security UI in Downloads. Reported by @retsew0x01 on 2021-05-26
[$N/A][1023503] Medium CVE-2021-30585: Use after free in sensor handling. Reported by niarci on 2019-11-11
[$TBD][1201032] Medium CVE-2021-30586: Use after free in dialog box handling on Windows. Reported by kkomdal with kkwon and neodal on 2021-04-21
[$N/A][1204347] Medium CVE-2021-30587: Inappropriate implementation in Compositing on Windows. Reported by Abdulrahman Alqabandi, Microsoft Browser Vulnerability Research on 2021-04-30
[$5000][1195650] Low CVE-2021-30588: Type Confusion in V8. Reported by Jose Martinez (tr0y4) from VerSprite Inc. on 2021-04-04
[$3000][1180510] Low CVE-2021-30589: Insufficient validation of untrusted input in Sharing. Reported by Kirtikumar Anandrao Ramchandani (@Kirtikumar_A_R) and Patrick Walker (@homesen) on 2021-02-20
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.
