Multiple vulnerabilities were discovered in cURL, an URL transfer library. CVE-2018-1000120 Duy Phan Thanh discovered that curl could be fooled into writing a zero byte out of bounds when curl is told to work on an FTP URL with the setting to only issue a single CWD command, if the directory part of the URL contains a "%00" sequence. CVE-2018-1000121 Dario Weisser discovered that curl might dereference a near-NULL address when getting an LDAP URL due to the ldap_get_attribute_ber fuction returning LDAP_SUCCESS and a NULL pointer. A malicious server might cause libcurl-using applications that allow LDAP URLs, or that allow redirects to LDAP URLs to crash. CVE-2018-1000122 OSS-fuzz, assisted by Max Dymond, discovered that curl could be tricked into copying data beyond the end of its heap based buffer when asked to transfer an RTSP URL.