OCS ADVISORY NUMBER:
Adobe Flash Player Remote Code Execution Vulnerability (APSB13-09)
Multiple vulnerabilities have been discovered in Adobe Flash Player that could allow an attacker to take control of the affected system. Adobe Flash Player is a multimedia application for multiple platforms.
Successful exploitation could result in an attacker gaining the same privileges as the logged on user. Depending on the privileges associated with the user, an attacker could then install programs; view, change, or delete data; or create new accounts with full user access. Failed exploit attempts will likely cause denial-of-service conditions.
- Adobe Flash Player 11.6.602.171 and earlier versions for Windows and Macintosh
- Adobe Flash Player 18.104.22.1683 and earlier versions for Linux
- Adobe Flash Player 22.214.171.124 and earlier versions for Android 4.x
- Adobe Flash Player 126.96.36.199 and earlier versions for Android 3.x and 2.x
- Adobe AIR 188.8.131.527 and earlier versions for Windows, Macintosh and Android
- Adobe AIR 184.108.40.2067 SDK and earlier versions
- Adobe AIR 220.127.116.119 SDK & Compiler and earlier versions
- Large and medium government entities: High
- Small government entities: High
- Large and medium business entities: High
- Small business entities: High
Home users: High
Adobe Flash Player is prone to multiple vulnerabilities that could allow for remote code execution. The update provided by Adobe resolves the following:
- An integer overflow vulnerability that could lead to code execution
- A use-after-free vulnerability that could be exploited to execute arbitrary code
- A memory corruption vulnerability that could lead to code execution
- A heap buffer overflow vulnerability that could lead to code execution
Attackers can exploit these issues to execute arbitrary code in the context of the affected application. Failed exploit attempts will likely result in denial-of-service conditions. Successful exploitation could result in an attacker gaining the same privileges as the logged on user. Depending on the privileges associated with the user, an attacker could then install programs; view, change, or delete data; or create new accounts with full user access.
We recommend the following actions be taken:
- Update Adobe Shockwave Player on vulnerable systems immediately after testing.
- Users of Adobe Flash Player 11.6.602.171 and earlier versions for Windows and Macintosh should update to Adobe Flash Player 11.6.602.180.
- Users of Adobe Flash Player 18.104.22.1683 and earlier versions for Linux should update to Adobe Flash Player 22.214.171.1245.
- Run all software as a non-privileged user (one without administrative privileges) to diminish the effects of a successful attack.
- Remind users not to visit un-trusted websites or follow links provided by unknown or un-trusted sources.
- Remind users not to open e-mail attachments from unknown users or suspicious e-mails from trusted sources.
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