Chrome Releases: Stable Channel Update for Desktop

Stable Channel Update for Desktop

Tuesday, December 4, 2018

The Chrome team is delighted to announce the promotion of Chrome 71 to the stable channel for Windows, Mac and Linux. This will roll out over the coming days/weeks.
Chrome 71.0.3578.80 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 71.

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

[$N/A][905940] High CVE-2018-17480: Out of bounds write in V8. Reported by Guang Gong of Alpha Team, Qihoo 360 via Tianfu Cup on 2018-11-16

[$6000][901654] High CVE-2018-17481: Use after frees in PDFium. Reported by Anonymous on 2018-11-04

[$5000][895362] High CVE-2018-18335: Heap buffer overflow in Skia. Reported by Anonymous on 2018-10-15

[$5000][898531] High CVE-2018-18336: Use after free in PDFium. Reported by Huyna at Viettel Cyber Security on 2018-10-24

[$3000][886753] High CVE-2018-18337: Use after free in Blink. Reported by cloudfuzzer on 2018-09-19

[$3000][890576] High CVE-2018-18338: Heap buffer overflow in Canvas. Reported by Zhe Jin（金哲），Luyao Liu(刘路遥) from Chengdu Security Response Center of Qihoo 360 Technology Co. Ltd on 2018-09-29

[$3000][891187] High CVE-2018-18339: Use after free in WebAudio. Reported by cloudfuzzer on 2018-10-02

[$3000][896736] High CVE-2018-18340: Use after free in MediaRecorder. Reported by Anonymous on 2018-10-18

[$3000][901030] High CVE-2018-18341: Heap buffer overflow in Blink. Reported by cloudfuzzer on 2018-11-01

[$3000][906313] High CVE-2018-18342: Out of bounds write in V8. Reported by Guang Gong of Alpha Team, Qihoo 360 on 2018-11-17

[$1000][882423] High CVE-2018-18343: Use after free in Skia. Reported by Tran Tien Hung (@hungtt28) of Viettel Cyber Security on 2018-09-10

[$N/A][866426] High CVE-2018-18344: Inappropriate implementation in Extensions. Reported by Jann Horn of Google Project Zero on 2018-07-23

[$10337][900910] High To be allocated: Multiple issues in SQLite via WebSQL. Reported by Wenxiang Qian of Tencent Blade Team on 2018-11-01

[$8000][886976] Medium CVE-2018-18345: Inappropriate implementation in Site Isolation. Reported by Masato Kinugawa and Jun Kokatsu (@shhnjk) on 2018-09-19

[$2000][606104] Medium CVE-2018-18346: Incorrect security UI in Blink. Reported by Luan Herrera (@lbherrera_) on 2016-04-23

[$2000][850824] Medium CVE-2018-18347: Inappropriate implementation in Navigation. Reported by Luan Herrera (@lbherrera_) on 2018-06-08

[$2000][881659] Medium CVE-2018-18348: Inappropriate implementation in Omnibox. Reported by Ahmed Elsobky (@0xsobky) on 2018-09-07

[$2000][894399] Medium CVE-2018-18349: Insufficient policy enforcement in Blink. Reported by David Erceg on 2018-10-11

[$1000][799747] Medium CVE-2018-18350: Insufficient policy enforcement in Blink. Reported by Jun Kokatsu (@shhnjk) on 2018-01-06

[$1000][833847] Medium CVE-2018-18351: Insufficient policy enforcement in Navigation. Reported by Jun Kokatsu (@shhnjk) on 2018-04-17

[$1000][849942] Medium CVE-2018-18352: Inappropriate implementation in Media. Reported by Jun Kokatsu (@shhnjk) on 2018-06-06

[$1000][884179] Medium CVE-2018-18353: Inappropriate implementation in Network Authentication. Reported by Wenxu Wu (@ma7h1as) of Tencent Security Xuanwu Lab on 2018-09-14

[$1000][889459] Medium CVE-2018-18354: Insufficient data validation in Shell Integration. Reported by Wenxu Wu (@ma7h1as) of Tencent Security Xuanwu Lab on 2018-09-26

[$500][896717] Medium CVE-2018-18355: Insufficient policy enforcement in URL Formatter. Reported by evi1m0 of Bilibili Security Team on 2018-10-18

[$N/A][883666] Medium CVE-2018-18356: Use after free in Skia. Reported by Tran Tien Hung (@hungtt28) of Viettel Cyber Security on 2018-09-13

[$N/A][895207] Medium CVE-2018-18357: Insufficient policy enforcement in URL Formatter. Reported by evi1m0 of Bilibili Security Team on 2018-10-15

[$N/A][899126] Medium CVE-2018-18358: Insufficient policy enforcement in Proxy. Reported by Jann Horn of Google Project Zero on 2018-10-26

[$1000][907714] Medium CVE-2018-18359: Out of bounds read in V8. Reported by cyrilliu of Tencent Zhanlu Lab on 2018-11-22

[$500][851821] Low CVE-2018-20065: Inappropriate implementation in PDFium. Reported by Salem Faisal Elmrayed on 2018-06-12

[$500][856135] Low CVE-2018-20066: Use after free in Extensions. Reported by Zhe Jin（金哲），Luyao Liu(刘路遥) from Chengdu Security Response Center of Qihoo 360 Technology Co. Ltd on 2018-06-25

[$500][879965] Low CVE-2018-20067: Inappropriate implementation in Navigation. Reported by Luan Herrera (@lbherrera_) on 2018-09-03

[$500][882270] Low CVE-2018-20068: Inappropriate implementation in Navigation. Reported by Jesper van den Ende on 2018-09-09

[$500][890558] Low CVE-2018-20069: Insufficient policy enforcement in Navigation. Reported by Ryan Pickren (ryanpickren.com) on 2018-09-29

[$N/A][895885] Low CVE-2018-20070: Insufficient policy enforcement in URL Formatter. Reported by evi1m0 of Bilibili Security Team on 2018-10-16

This bug was fixed in Chrome 69, but was incorrectly omitted from the release notes at the time:

[$3000][853937] Medium CVE-2018-20071: Insufficient policy enforcement in Payments. Reported by Jun Kokatsu (@shhnjk) on 2018-06-18

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:

[911706] 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.

Interested in switching release channels? Find out how here. If you find a new issue, please let us know by filing a bug. The community help forum is also a great place to reach out for help or learn about common issues.

Thank you,

Krishna Govind