
Node.js is a JavaScript runtime built on Chrome's V8 JavaScript engine. Node.js uses an event-driven, non-blocking I/O model that makes it lightweight and efficient. Node.js' package ecosystem, npm, is the largest ecosystem of open source libraries in the world.Node is designed to build scalable network applications.
v5.7 [Feb 23, 2016]
Fix a double-free defect in parsing malformed DSA keys that may potentially be used for DoS or memory corruption attacks. It is likely to be very difficult to use this defect for a practical attack and is therefore considered low severity for Node.js users.
Fix a defect that can cause memory corruption in certain very rare cases relating to the internal BN_hex2bn() and BN_dec2bn() functions. It is believed that Node.js is not invoking the code paths that use these functions so practical attacks via Node.js using this defect are unlikely to be possible.
Fix a defect that makes the CacheBleed Attack possible. This defect enables attackers to execute side-channel attacks leading to the potential recovery of entire RSA private keys. It only affects the Intel Sandy Bridge (and possibly older) microarchitecture when using hyper-threading. Newer microarchitectures, including Haswell, are unaffected.