Stable Channel Update

The Chrome team is overjoyed to announce the promotion of Chrome 42 to the stable channel for Windows, Mac and Linux. Chrome 42.0.2311.90 contains a number of fixes and improvements, including:

• A number of new apps, extension and Web Platform APIs (including the Push API!)
• Lots of under the hood changes for stability and performance
• The answer to life, the universe and everything

A list of changes is available in the log.

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 45 security fixes. Below, we highlight fixes that were contributed by external researchers. Please see the Chromium security page for more information.

[$7500][456518] High CVE-2015-1235: Cross-origin-bypass in HTML parser. Credit to anonymous.
[$4000][313939] Medium CVE-2015-1236: Cross-origin-bypass in Blink. Credit to Amitay Dobo.
[$3000][461191] High CVE-2015-1237: Use-after-free in IPC. Credit to Khalil Zhani.
[$2000][445808] High CVE-2015-1238: Out-of-bounds write in Skia. Credit to cloudfuzzer.
[$1000][463599] Medium CVE-2015-1240: Out-of-bounds read in WebGL. Credit to w3bd3vil.
[$1000][418402] Medium CVE-2015-1241: Tap-Jacking. Credit to Phillip Moon and Matt Weston of Sandfield.
[$500][460917] High CVE-2015-1242: Type confusion in V8. Credit to [email protected].
[$500][455215] Medium CVE-2015-1244: HSTS bypass in WebSockets. Credit to Mike Ruddy.
[$500][444957] Medium CVE-2015-1245: Use-after-free in PDFium. Credit to Khalil Zhani.
[$500][437399] Medium CVE-2015-1246: Out-of-bounds read in Blink. Credit to Atte Kettunen of OUSPG.
[$500][429838] Medium CVE-2015-1247: Scheme issues in OpenSearch. Credit to Jann Horn.
[$500][380663] Medium CVE-2015-1248: SafeBrowsing bypass. Credit to Vittorio Gambaletta (VittGam).

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. The total value of additional rewards and their recipients will updated here when all reports have gone through the reward panel.

As usual, our ongoing internal security work was responsible for a wide range of fixes:
[476786] CVE-2015-1249: Various fixes from internal audits, fuzzing and other initiatives.
Multiple vulnerabilities in V8 fixed at the tip of the 4.2 branch (currently 4.2.77.14).

Many of the above bugs were detected using AddressSanitizer or MemorySanitizer.

Interested in switching release channels? Find out how. If you find a new issue, please let us know by filing a bug.

Alex Mineer
Google Chrome