Adobe is encouraging users of Flash Player to upgrade to the latest version to avoid falling victim to two vulnerabilities that could allow attackers to take complete system control.
Rated "highly critical" by vulnerability tracking firm Secunia, the flaws can be corrected by upgrading to version 22.214.171.124, according to an Adobe security bulletin issued Tuesday.
One of the bugs is an input validation error that can be exploited to execute arbitrary code if a user clicks on an untrusted link and visits a malicious website, according to Adobe and Secunia advisories.
The other vulnerability can lead to a cross-site request forgery attack, which dupes a trusted user into loading a page containing a malicious request. In this case, a bug in the Flash Player causes the HTTP referrer to be insufficiently validated.
According to Adobe, users unable to upgrade to Flash Player version 9 can continue to use a patched version of Flash Player 7.
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