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Tagged: cloudflare

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Cloudflare moves from reCaptcha to hCaptcha

A recent Cloudflare blog talks about their decision to move to hCaptcha. We recently migrated the CAPTCHA provider we use from Google’s reCAPTCHA to a service provided by the independent hCaptcha. We’re excited about this change because it helps address a privacy concern inherent to relying on a Google service that we’ve had for some time and also gives us more flexibility to customize...

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Cloudflare memory leak caused by parser bug

Last Friday, Tavis Ormandy from Google’s Project Zero contacted Cloudflare to report a security problem with our edge servers. He was seeing corrupted web pages being returned by some HTTP requests run through Cloudflare. It turned out that in some unusual circumstances, which I’ll detail below, our edge servers were running past the end of a buffer and returning memory that contained private information...