Critical.
Authoritative.
Strategic.
Subscribe to CIO Magazine »

Google issues last-minute Chrome fixes before Pwn2Own

Day before hacking contest starts, fixes 25 flaws and pays out $16K in bounties

Google patched 25 vulnerabilities in Chrome today in one last update before the Pwn2Own hacking contest starts Wednesday in Canada.

The company has a lot on the line at Pwn2Own, which runs March 9-11 at the CanSecWest security conference in Vancouver, British Columbia.

The first researcher to hack Chrome on Wednesday will be paid $20,000 by Google . If no one breaks the browser that day, the rules change and Google will fork over $10,000 for a successful exploit on Thursday or Friday, with Pwn2Own sponsor HP TippingPoint ponying up another $10,000.

Other browsers that researchers will tackle at Pwn2Own include Apple's Safari 5, Microsoft's Internet Explorer 8 and Mozilla's Firefox 3.6.

Tuesday's 25-patch update fixed 15 vulnerabilities rated "high," the second-most-severe ranking in Google's scoring; three labeled "medium"; and seven pegged as only "low."

None of the vulnerabilities was ranked "critical," the category essentially reserved for bugs that may let an attacker escape Chrome's anti-exploit "sandbox." Google has patched two sandbox-escape bugs this year.

Today's Chrome update was the second in the last eight days: Google patched 19 browser bugs on Feb. 28.

Three of the vulnerabilities were identified as "stale pointer" bugs, a term that describes flaws in an application's -- in this case, Chrome's -- memory allocation code. Google has patched numerous stale pointer bugs in the last two months.

Other flaws fixed today were credited to a wide range of the browser's components, including its V8 JavaScript engine, the code that processes video, and WebKit, the open-source browser engine that both Chrome and Apple's Safari use as their foundations.

As is its practice, Google locked its bug tracking database to bar outsiders from viewing the technical details of the just-patched vulnerabilities. The company blocks public access to flaws for weeks or even months to give users time to update.

Google paid out a record $16,174 in bounties for finding and reporting 15 of the vulnerabilities patched today. Five different researchers received checks, with frequent-contributor Sergey Glazunov taking home $6,500 and Daniel Divricean earning $3,174.

So far this year, Google has spent nearly $50,000 on bug bounties.

Along with the security update, Google also upped Chrome's stable channel -- the browser comes in three editions, stable, beta and dev -- to version 10. The upgrade to Chrome 10 came less than five weeks after Google boosted the stable channel to version 9 .

Chrome 10 includes a new JavaScript optimization technology, dubbed "Crankshaft," that boosts the browser's JavaScript rendering engine's speed in some benchmarks. Google debuted Crankshaft in the dev channel last December, and in the beta line last month.

According to Computerworld's tests, Crankshaft increases Chrome's score on Google's own V8 JavaScript benchmarks by 64%, but doesn't improve the browser's score on the more widely used SunSpider test suite.

Other additions to Chrome 10 include site password synchronization, and the first appearance in a stable build of an anti-exploit "sandbox" to isolate the integrated copy of Adobe's Flash Player.

Google has been releasing rougher versions of Chrome with a Flash sandbox since early December 2010.

Chrome 10 can be downloaded for Windows, Mac OS X and Linux from Google's Web site. Users already running the browser will be updated automatically.

Gregg Keizer covers Microsoft, security issues, Apple, Web browsers and general technology breaking news for Computerworld. Follow Gregg on Twitter at @gkeizer or subscribe to Gregg's RSS feed . His e-mail address is gkeizer@computerworld.com .

Read more about security in Computerworld's Security Topic Center.

Join the CIO Australia group on LinkedIn. The group is open to CIOs, IT Directors, COOs, CTOs and senior IT managers.

More about: Adobe, Apple, Google, Hewlett-Packard, HP, Linux, Microsoft, Mozilla, TippingPoint, TippingPoint, West
References show all

Comments

Post new comment

The content of this field is kept private and will not be shown publicly.
Users posting comments agree to the CIO comments policy.
Login or register to link comments to your user profile, or you may also post a comment without being logged in.
Related Coverage
Related Whitepapers
Latest Stories
Community Comments
Tags: Apple, applications, browsers, Google, Malware and Vulnerabilities, Microsoft, mozilla, security, software
Latest Blog Posts
Whitepapers
  • Security Threat Report 2012
    This threat report shares the latest research on hacktivism, online threats, mobile malware, cloud computing, and social network security looking ahead to the coming year.
    Learn more »
  • The State of Data Security
    Recognize how your data can become vulnerable, including the latest issues stemming from unprotected data on mobile devices and social media sites. Understand the compliance issues involved, and identify data protection strategies you can use to keep your company’s information both safe and compliant.
    Learn more »
  • Case Study: NZ Bus Develops Applications 60% Faster, Improves Database Performance by up to 35%
    Key Benefits: Developed applications 60% faster, Created development and test environments in minutes compared to days and weeks previously, Reduced server costs by 30% with server virtualisation, Saved NZ$40,000 in database administrator training costs, Provided high availability features that keep the database and core applications up and running in the event of a server failure, Introduced compression capabilities that improved database performance by 30% to 35%. Read on.
    Learn more »
All whitepapers
rhs_login_lockGet exclusive access to Invitation only events CIO, reports & analysis.
Recent comments