Adobe on Wednesday released a beta of a Flash Player 9 for Linux and said that it is working on 64-bit editions of Flash.
The final Flash Player 9 on Linux is due early next year. According to an FAQ put out by Adobe, the Linux version will support the same features as Flash on Macintosh and Windows.
The beta of Flash Player 9 for Linux supports most of the features except a full-screen mode and support for SSL (secure sockets layer) encryption.
The company declined to indicate when the final version of future 64-bit versions will be available.
People can develop applications using Adobe's Flex 2 software developer's kit, and those Flash programs will run on Windows, Macintosh or Linux, according to Adobe.
Two vulnerabilities have been found in Adobe Flash Player version 7.0.63 for Linux -- as well as earlier versions -- that provide an opportunity for attackers to send arbitrary HTTP requests from an unsuspecting user's browser, reports Rapid7 LLC in a security advisory published Tuesday.
These vulnerabilities could be used in concert with cross-site request forgery (CSRF) vulnerabilities to steal cookies or other private information, Rapid7 said. The exploits can be carried out through the vulnerabilities when Flash 7.0.63 is used with Firefox 188.8.131.52 for Linux.
The two vulnerabilities reported are as follows:
* XML.addRequestHeader() Vulnerability -- The addRequestHeader() method insufficiently secures itself, providing a way around a security restriction that does not permit developers to use addRequestHeader() to set headers such as Host, Referer or Content-Length. As a result, it is possible to inject arbitrary headers with HTTP requests. The Rapid7 security paper points out that this vulnerability is similar to other, previously-reported vulnerabilities in Adobe Flash 7 and 8.
* XML.contentType Vulnerability -- The XML.contentType attribute contains the same vulnerability found in the addRequestHeader() and it can be exploited in the same way because Adobe Flash does not check the validity of the attribute's value before building the HTTP request.
According to Rapid7, Adobe was notified of the vulnerabilities but has not yet released a fix or upgrade to Adobe Flash Player. To protect from the risk of attack, Rapid7 offers these solutions in the interim:
* Only allow trusted Websites to use Flash
* Use alternative Flash Plugins (GplFlash, Gnash)
* Uninstall Adobe Flash Player
According to Adobe, there are 700 million Adobe Flash users worldwide.
Rapid7 was founded in 1999 by a team of software industry veterans who were major contributors to product development at Percussion Software, Bond Technologies, and Stride & Associates.
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