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Fixed an issue which prevented proper logins to CNET. Corrected an issue where tabs would flash, for a split second, if multiple tabs were opened at the same time. A fix where PAC scripts would fail to parse if they ended with a comment and no new line. A fix to two significant history related crashing bugs. The release notes for Google Chrome 3.0.195.24 Beta include: Following a series of weeks when the updates have been released with a range of fixes and improvements only for the dev channel, the new flavor for the beta channel, 3.0.195.24, brings a few fixes to the table, including one related to some crashes. Thank you to all the people who helped review and discuss responses to this issue.Google has released yet another update for its Chrome web browser, this time around one aimed at the beta channel. In the coming months, we hope to remove support for SSL 3.0 completely from our client products. This change will break some sites and those sites will need to be updated quickly. Additionally, Google Chrome will begin testing changes today that disable the fallback to SSL 3.0. Google Chrome and our servers have supported TLS_FALLBACK_SCSV since February and thus we have good evidence that it can be used without compatibility problems. It also prevents downgrades from TLS 1.2 to 1.1 or 1.0 and so may help prevent future attacks. This is a mechanism that solves the problems caused by retrying failed connections and thus prevents attackers from inducing browsers to use SSL 3.0. Therefore our recommended response is to support TLS_FALLBACK_SCSV. Because a network attacker can cause connection failures, they can trigger the use of SSL 3.0 and then exploit this issue.ĭisabling SSL 3.0 support, or CBC-mode ciphers with SSL 3.0, is sufficient to mitigate this issue, but presents significant compatibility problems, even today. Most importantly, nearly all browsers support it and, in order to work around bugs in HTTPS servers, browsers will retry failed connections with older protocol versions, including SSL 3.0. SSL 3.0 is nearly 18 years old, but support for it remains widespread.

I discovered this issue in collaboration with Thai Duong and Krzysztof Kotowicz (also Googlers). This vulnerability allows the plaintext of secure connections to be calculated by a network attacker. Today we are publishing details of a vulnerability in the design of SSL version 3.0.