Multiple serious vulnerabilities have been found in Adobe Flash Player. Malicious users can exploit these vulnerabilities to execute arbitrary code.

Below is a complete list of vulnerabilities:

1. A type confusion vulnerability related to the MessageChannel class can be exploited remotely to execute arbitrary code;
2. An integer overflow vulnerability related to Flash Broker COM can be exploited remotely to execute arbitrary code;
3. Use-after-free vulnerabilities can be exploited remotely to execute arbitrary code;
4. Heap buffer overflow vulnerabilities can be exploited remotely to execute arbitrary code;
5. Memory corruption vulnerabilities can be exploited remotely to execute arbitrary code.

Technical details

Vulnerabilities (3) occur in a routine related to player shutdown, in the ActionScript 3 BitmapData class, in Primetime SDK event dispatch or might be related to event handlers.

Vulnerabilities (4) occur in the h264 decoder routine, in the Flash Video (FLV) codec and while parsing an MP4 header.

Vulnerabilities (5) occur while performing garbage collection, in the h264 codec (related to decompression) and in Primetime SDK.
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Adobe Flash Player versions earlier than 24.0.0.221

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Adobe Security Bulletin

The following public exploits exists for this vulnerability:

https://www.exploit-db.com/exploits/41422

https://www.exploit-db.com/exploits/41423

https://www.exploit-db.com/exploits/41421

https://www.exploit-db.com/exploits/41420

Malware exists for this vulnerability. Usually such malware is classified as Exploit. More details.