Multiple buffer overflows in yaSSL 1.7.5 and earlier, as used in MySQL and possibly other products, allow remote attackers to execute arbitrary code via (1) the ProcessOldClientHello function in handshake.cpp or (2) "inputbuffer& operator>>" in yasslimp.cpp.

yaSSL 1.7.5 and earlier, as used in MySQL and possibly other products, allows remote attackers to cause a denial of service (crash) via a Hello packet containing a large size value, which triggers a buffer over-read in the HASHwithTransform::Update function in hash.cpp.

Stack-based buffer overflow in the (1) putdir function in mongoose.c in Mongoose 3.0, (2) putdir function in yasslEWS.c in yaSSL Embedded Web Server (yasslEWS) 0.2, and (3) shttpdputdir function in iodir.c in Simple HTTPD (shttpd) 1.42 allows remote attackers to execute arbitrary code via an HTTP PUT request, as exploited in the wild in 2011.