Stable Channel Update

Chrome has been updated to 31.0.1650.48 for Windows, Mac, Linux and Chrome Frame.

Flash Player has been updated to 11.9.900.152, which is included w/ this release.

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 25 security fixes. Below, we highlight fixes that were either contributed by external researchers or particularly interesting. Please see the Chromium security page for more information.

[$500][268565] Medium CVE-2013-6621: Use after free related to speech input elements. Credit to Khalil Zhani.

[$2000][272786] High CVE-2013-6622: Use after free related to media elements. Credit to cloudfuzzer.

[$500][282925] High CVE-2013-6623: Out of bounds read in SVG. Credit to miaubiz.

[$1000][290566] High CVE-2013-6624: Use after free related to "id" attribute strings. Credit to Jon Butler.

[$2000][295010] High CVE-2013-6625: Use after free in DOM ranges. Credit to cloudfuzzer.

[295695] Low CVE-2013-6626: Address bar spoofing related to interstitial warnings. Credit to Chamal de Silva.

[$4000][299892] High CVE-2013-6627: Out of bounds read in HTTP parsing. Credit to skylined.

[$1000][306959] Medium CVE-2013-6628: Issue with certificates not being checked during TLS renegotiation. Credit to Antoine Delignat-Lavaud and Karthikeyan Bhargavan from Prosecco of INRIA Paris.

We would also like to thank miaubiz and Atte Kettunen of OUSPG for working with us during the development cycle to prevent security bugs from ever reaching the stable channel. $2000 in additional rewards were issued.

As usual, our ongoing internal security work responsible for a wide range of fixes:

• [315823] Medium-Critical CVE-2013-2931: Various fixes from internal audits, fuzzing and other initiatives.

• [258723] Medium CVE-2013-6629: Read of uninitialized memory in libjpeg and libjpeg-turbo. Credit to Michal Zalewski of Google.

• [299835] Medium CVE-2013-6630: Read of uninitialized memory in libjpeg-turbo. Credit to Michal Zalewski of Google.

• [296804] High CVE-2013-6631: Use after free in libjingle. Credit to Patrik Höglund of the Chromium project.

Many of the above bugs were detected using AddressSanitizer.

A full list of changes is available in the SVN log. Interested in switching release channels? Find out how. If you find a new issue, please let us know by filing a bug.

Anthony Laforge
Google Chrome