CVE-2014-6228: Undefined Security Weakness

Integer overflow in the stringchunksplit function in hphp/runtime/base/zend-string.cpp in Facebook HipHop Virtual Machine HHVM before 3.3.0 allows remote attackers to cause a denial of service application crash or possibly have unspecified other impact via crafted arguments to the chunksplit...

CVE-2014-6229: Exposure of Sensitive Information to an Unauthorized Actor

The HashContext class in hphp/runtime/ext/exthash.cpp in Facebook HipHop Virtual Machine HHVM before 3.3.0 incorrectly expects that a certain key string uses '\0' for termination, which allows remote attackers to obtain sensitive information by leveraging read access beyond the end of the string,...

CVE-2014-5386: Undefined Security Weakness

The mcryptcreateiv function in hphp/runtime/ext/mcrypt/extmcrypt.cpp in Facebook HipHop Virtual Machine HHVM before 3.3.0 does not seed the random number generator, which makes it easier for remote attackers to defeat cryptographic protection mechanisms by leveraging the use of a single...

CVE-2014-2209: Undefined Security Weakness

Facebook HipHop Virtual Machine HHVM before 3.1.0 does not drop supplemental group memberships within hphp/util/capability.cpp and hphp/util/light-process.cpp, which allows remote attackers to bypass intended access restrictions by leveraging group permissions for a file or directory...

CVE-2014-2208: Improper Control of Generation of Code

CRLF injection vulnerability in the LightProcess protocol implementation in hphp/util/light-process.cpp in Facebook HipHop Virtual Machine HHVM before 2.4.2 allows remote attackers to execute arbitrary commands by entering a \n newline character before the end of a string...