CVE-2015-3144

The fix_hostname function in cURL and libcurl 7.37.0 through 7.41.0 does
not properly calculate an index, which allows remote attackers to cause a
denial of service (out-of-bounds read or write and crash) or possibly have
other unspecified impact via a zero-length host name, as demonstrated by
“http://:80” and “:80.”

Notes