Google paid out a record $16,500 to developers for plugging 27 Chrome Web browser vulnerabilities, paving the way for the launch of the Chrome 11.
Chromium development community members and other tinkerers of the open-source browser found a slew of flaws with the latest application build.
These included 18 holes rated "high," six dubbed "medium" and three considered "low" risk. Per policy, Google rewarded most of them for their discoveries.
While a high-risk stale pointer in floating object handling and a low-risk pop-up block bypass via plug-ins went unpaid, Google paid between $500 and $3,000 for vulnerabilities such as:
Medium-risk lack of thread safety in MIME handling ($500)
High-risk corrupt node trees with mutation events ($1,000)
High-risk use-after-free in DOM id handling ($1,500)
High-risk dangling pointers in DOM id map ($2,000)
High-risk possible URL bar spoofs with navigation errors and interrupted loads ($3,000)
See the full list of flaws here. Google gave a shout-out of thanks to miaubiz, kuzzcc, Sławomir Błażek, Drew Yao and Braden Thomas of Apple's product security team for working with the Chrome team to ensure bugs don't reach the stable channel.
Google pays the bug hunters through its Chromium Security Rewards program, a crowdsourced approach to letting developers earn money by helping Google squash bugs in Chrome. Mozilla also employs a bug-hunting payment system.
The company patched a slew of flaws in March ahead of the renowned Pwn2Own hacker contest, including 19 Feb. 28, totaling $14,000, and 25 on March 8 totaling more than $16,000. Google paid out another $8,500 March 24 for six bug fixes.
In total, Google has paid out more than $100,000 worth of rewards since launching the rewards program last January. Google's own security team spent part of March shoring up SSL certificates in the wake of the Comodo Security hack, which exposed digital certificates.