Vulnerability identifier: APSB07-20

CVE number: CVE-2007-6242, CVE-2007- 4768, CVE-2007-5275, CVE-2007- 6243, CVE-2007- 6244, CVE-2007- 6245, CVE-2007-4324, CVE-2007- 6246, CVE-2007-5476

Platform: All platforms

Affected software versions: Adobe Flash Player 9.0.48.0 and earlier, 8.0.35.0 and earlier, and 7.0.70.0 and earlier.
Summary

Critical vulnerabilities have been identified in Adobe Flash Player that could allow an attacker who successfully exploits these potential vulnerabilities to take control of the affected system. A malicious SWF must be loaded in Flash Player by the user for an attacker to exploit these potential vulnerabilities. Users are recommended to update to the most current version of Flash Player available for their platform.
Affected software versions

Adobe Flash Player 9.0.48.0 and earlier, 8.0.35.0 and earlier, and 7.0.70.0 and earlier.

To verify the Adobe Flash Player version number, access the About Flash Player page, or right-click on Flash content and select “About Adobe (or Macromedia) Flash Player” from the menu. If you use multiple browsers, perform the check for each browser you have installed on your system.
Solution

Adobe recommends all users of Adobe Flash Player 9.0.48.0 and earlier versions upgrade to the newest version 9.0.115.0 (Win, Mac, Linux), by downloading it from the Player Download Center, or by using the auto-update mechanism within the product when prompted.

Adobe will be providing an update to Adobe Flash Player 9.0.47.0 for Solaris at a later date. Customers can download and install the Flash Player public beta, which addresses these vulnerabilities, from the Adobe Labs site in the meantime.

For customers who cannot upgrade to Adobe Flash Player 9, Adobe has developed a patched version of Flash Player 7. Please refer to the Flash Player update TechNote.
Severity rating

Adobe categorizes this as a critical update and recommends affected users upgrade to version 9.0.115.0 (Win, Mac, Linux).
Details

Multiple input validation errors have been identified in Flash Player 9.0.48.0 and earlier versions that could lead to the potential execution of arbitrary code. These vulnerabilities could be accessed through content delivered from a remote location via the user’s web browser, email client, or other applications that include or reference the Flash Player. (CVE-2007- 4768, CVE-2007-6242)

This update introduces functionality to mitigate a potential issue could potentially aid an attacker in executing a DNS rebinding attack. For more information, see the following Adobe Developer Center article. (CVE-2007-5275)

This update introduces a new, stricter method for Flash Player to interpret cross-domain policy files. These changes could help prevent privilege escalation attacks against web servers hosting Flash content and cross-domain policy files. For more information, see the following Adobe Developer Center article. (CVE-2007- 6243)

This update restricts the unsupported asfunction: protocol to address potential cross-site scripting issues with some SWF files. This issue is specific to Flash Player 8 and Flash Player 9 and does not affect Flash Player 7. (CVE-2007-6244)

This update makes changes to the navigateToURL function to prevent potential Universal Cross-Site Scripting attacks. This issue is specific to the Flash Player ActiveX Control and the Internet Explorer Browser. (CVE-2007-6244)

This update resolves an issue that could allow remote attackers to modify HTTP headers of client requests and conduct HTTP Request Splitting attacks. (CVE-2007-6245)

This update introduces functionality to mitigate a potential port-scanning issue. For more information, see the following Knowledgebase Article. (CVE-2007-4324)

The Linux update for Flash Player addresses a memory permissions issue that could lead to privilege escalation. (CVE-2007-6246)

The Mac update for Flash Player addresses the issue with Flash Player originally reported by Opera and described in Security Advisory APSA07-05. (CVE-2007-5476)