CVE 2010-3549
Unspecified vulnerability in the Networking component in Oracle Java SE and Java for Business 6 Update 21, 5.0 Update 25, 1.4.2_27, and 1.3.1_28 allows remote attackers to affect confidentiality, integrity, and availability via unknown vectors. NOTE: the previous information was obtained from the October 2010 CPU. Oracle has not commented on claims from a reliable downstream vendor that this is an HTTP request splitting vulnerability involving the handling of the chunked transfer encoding method by the HttpURLConnection class.
See the 
CVE page on Mitre.org
for more details.
