Many of our security bugs are detected using AddressSanitizer, MemorySanitizer, UndefinedBehaviorSanitizer, Control Flow Integrity, libFuzzer, or AFL. Various fixes from internal audits, fuzzing and other initiatives 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.Īs usual, our ongoing internal security work was responsible for a wide range of fixes: Reported by Wei Yuan of MoyunSec VLab on Low CVE-2021-30624: Use after free in Autofill. Reported by Leecraso and Guang Gong of 360 Alpha Lab on Low CVE-2021-30623: Use after free in Bookmarks. Reported by Jun Kokatsu, Microsoft Browser Vulnerability Research on Medium CVE-2021-30622: Use after free in WebApp Installs. Reported by Abdulrahman Alqabandi, Microsoft Browser Vulnerability Research on Medium CVE-2021-30621: UI Spoofing in Autofill. Medium CVE-2021-30620: Insufficient policy enforcement in Blink. Medium CVE-2021-30619: UI Spoofing in Autofill. Reported by and from Contrast Security on Medium CVE-2021-30618: Inappropriate implementation in DevTools. Medium CVE-2021-30617: Policy bypass in Blink.

Medium CVE-2021-30616: Use after free in Media. Medium CVE-2021-30615: Cross-origin data leak in Navigation. Reported by Huinian Yang of Amber Security Lab, OPPO Mobile Telecommunications Corp. Medium CVE-2021-30614: Heap buffer overflow in TabStrip. Medium CVE-2021-30613: Use after free in Base internals.

Reported by Nan Wang and koocola of 360 Alpha Lab on Medium CVE-2021-30612: Use after free in WebRTC. Medium CVE-2021-30611: Use after free in WebRTC. Reported by Igor Bukanov from Vivaldi on High CVE-2021-30610: Use after free in Extensions API. High CVE-2021-30609: Use after free in Sign-In. Reported by Huyna at Viettel Cyber Security on High CVE-2021-30608: Use after free in Web Share. Reported by Weipeng Jiang from Codesafe Team of Legendsec at Qi'anxin Group on High CVE-2021-30607: Use after free in Permissions. High CVE-2021-30606: Use after free in Blink. Please see the Chrome Security Page for more information. Below, we highlight fixes that were contributed by external researchers. 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.

Note: Access to bug details and links may be kept restricted until a majority of users are updated with a fix.

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