Some vulnerabilities have been reported in Adobe
Flash Player, which can be exploited by malicious people to gain
knowledge of sensitive information or compromise a user’s system.

1) An input validation error can be exploited to execute arbitrary code when a user e.g. visits a malicious website.

The vulnerability affects versions and prior.

2) An error within the interaction of Flash Player and certain browsers
can be exploited to leak key presses to a Flash Player applet.

The vulnerability affects versions and prior on Linux and Solaris. It does not affect Flash Player 9.

A bug has also been reported in the validation of the HTTP Referer in
versions and prior, which may aid in e.g. CSRF (Cross-Site
Request Forgery) attacks.

Secunia has constructed the Secunia Software Inspector, which you can use to check if your system is vulnerable:

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