The Update method in src/node_http_parser.cc in Node.js before 0.6.17 and 0.7 before 0.7.8 does not properly check the length of a string, which allows remote attackers to obtain sensitive information (request header contents) and possibly spoof HTTP headers via a zero length string.
https://support.f5.com/csp/article/K99038439?utm_source=f5support&%3Butm_medium=RSS
http://www.openwall.com/lists/oss-security/2012/05/08/8
http://www.openwall.com/lists/oss-security/2012/05/08/4