Chrome Releases: Beta Channel Update for Desktop

Beta Channel Update for Desktop

Tuesday, October 6, 2020

The Chrome team is delighted to announce the promotion of Chrome 86 to the stable channel for Windows, Mac and Linux. This will roll out over the coming days/weeks.

Chrome 86.0.4240.75 contains a number of fixes and improvements -- a list of changes is available in the log. Watch out for upcoming Chrome and Chromium blog posts about new features and big efforts delivered in 86

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

[$N/A][1127322] Critical CVE-2020-15967: Use after free in payments. Reported by Man Yue Mo of GitHub Security Lab on 2020-09-11

[$5000][1126424] High CVE-2020-15968: Use after free in Blink. Reported by Anonymous on 2020-09-09

[$500][1124659] High CVE-2020-15969: Use after free in WebRTC. Reported by Anonymous on 2020-09-03

[$N/A][1108299] High CVE-2020-15970: Use after free in NFC. Reported by Man Yue Mo of GitHub Security Lab on 2020-07-22

[$N/A][1114062] High CVE-2020-15971: Use after free in printing. Reported by Jun Kokatsu, Microsoft Browser Vulnerability Research on 2020-08-07

[$TBD][1115901] High CVE-2020-15972: Use after free in audio. Reported by Anonymous on 2020-08-13

[$TBD][1133671] High CVE-2020-15990: Use after free in autofill. Reported by Rong Jian and Guang Gong of Alpha Lab, Qihoo 360 on 2020-09-30

[$TBD][1133688] High CVE-2020-15991: Use after free in password manager. Reported by Rong Jian and Guang Gong of Alpha Lab, Qihoo 360 on 2020-09-30

[$15000][1106890] Medium CVE-2020-15973: Insufficient policy enforcement in extensions. Reported by David Erceg on 2020-07-17

[$7500][1104103] Medium CVE-2020-15974: Integer overflow in Blink. Reported by Juno Im (junorouse) of Theori on 2020-07-10

[$7500][1110800] Medium CVE-2020-15975: Integer overflow in SwiftShader. Reported by Anonymous on 2020-07-29

[$7500][1123522] Medium CVE-2020-15976: Use after free in WebXR. Reported by YoungJoo Lee(@ashuu_lee) of Raon Whitehat on 2020-08-31

[$5000][1083278] Medium CVE-2020-6557: Inappropriate implementation in networking. Reported by Matthias Gierlings and Marcus Brinkmann (NDS Ruhr-University Bochum) on 2020-05-15

[$5000][1097724] Medium CVE-2020-15977: Insufficient data validation in dialogs. Reported by Narendra Bhati (https://twitter.com/imnarendrabhati) on 2020-06-22

[$5000][1116280] Medium CVE-2020-15978: Insufficient data validation in navigation. Reported by Luan Herrera (@lbherrera_) on 2020-08-14

[$5000][1127319] Medium CVE-2020-15979: Inappropriate implementation in V8. Reported by Avihay Cohen @ SeraphicAlgorithms on 2020-09-11

[$3000][1092453] Medium CVE-2020-15980: Insufficient policy enforcement in Intents. Reported by Yongke Wang(@Rudykewang) and Aryb1n(@aryb1n) of Tencent Security Xuanwu Lab (腾讯安全玄武实验室） on 2020-06-08

[$3000][1123023] Medium CVE-2020-15981: Out of bounds read in audio. Reported by Christoph Guttandin on 2020-08-28

[$2000][1039882] Medium CVE-2020-15982: Side-channel information leakage in cache. Reported by Luan Herrera (@lbherrera_) on 2020-01-07

[$N/A][1076786] Medium CVE-2020-15983: Insufficient data validation in webUI. Reported by Jun Kokatsu, Microsoft Browser Vulnerability Research on 2020-04-30

[$TBD][1080395] Medium CVE-2020-15984: Insufficient policy enforcement in Omnibox. Reported by Rayyan Bijoora on 2020-05-07

[$N/A][1099276] Medium CVE-2020-15985: Inappropriate implementation in Blink. Reported by Abdulrahman Alqabandi, Microsoft Browser Vulnerability Research on 2020-06-25

[$N/A][1100247] Medium CVE-2020-15986: Integer overflow in media. Reported by Mark Brand of Google Project Zero on 2020-06-29

[$N/A][1127774] Medium CVE-2020-15987: Use after free in WebRTC. Reported by Philipp Hancke on 2020-09-14

[$N/A][1110195] Medium CVE-2020-15992: Insufficient policy enforcement in networking. Reported by Alison Huffman, Microsoft Browser Vulnerability Research on 2020-07-28

[$500][1040837] [1092518] Low CVE-2020-15988: Insufficient policy enforcement in downloads. Reported by Zhong Zhaochen of andsecurity.cn on 2020-01-10 and Samuel Attard on 2020-06-08

[$N/A][1108351] Low CVE-2020-15989: Uninitialized Use in PDFium. Reported by Gareth Evans (Microsoft) on 2020-07-22

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:

[1135164] 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.

Google Chrome

Prudhvikumar Bommana