Stagefright Zero-Click MMS Remote Code Execution (CVE-2015-1532)
Joshua Drake (Zimperium) disclosed multiple critical vulnerabilities in Android's Stagefright media engine that allowed attackers to execute remote code on 950 million phones via a single silently received cellular MMS video message.
01Video Presentation & Conference Keynote
02Deep-Dive Technical Analysis
The vulnerability resided in the native `libstagefright` C++ media engine responsible for parsing MP4 and 3GP video metadata (`stsc` and `esds` atom parsers). Because cellular carrier MMS apps (such as Google Hangouts and default Messenger) automatically downloaded and parsed MMS video payloads upon receipt before the user even opened the message, an attacker could trigger an integer overflow and heap buffer overflow, execute arbitrary shellcode, and delete the offending MMS without user awareness.
03Vulnerability & Exploit Flow
Integer overflow in `libstagefright` MP4 atom parsing triggered automatically by background MMS push notifications.
04Recommended Defense & Mitigation Protocol
Disable automatic MMS auto-retrieval in cellular messaging clients, update Android OS patches, and sandboxing media parser processes.
05Security Impact & Geopolitical Consequence
Represented the largest zero-click cellular vulnerability in smartphone history, forcing Google to establish monthly Android security patches and prompting carriers to disable automatic background MMS retrieval.
06Authoritative Standards & External References
07Related Topic Cluster Records
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