CVE-2018-1000300

curl en su versión 7.54.1 hasta la 7.59.0 contiene una vulnerabilidad CWE-122: desbordamiento de búfer basado en memoria dinámica (heap) y una denegación de servicio (DoS) que puede resultar en que se podría desbordar un búfer de memoria dinámica al cerrar una conexión FTP con respuestas de comandos del servidor muy largas. La vulnerabilidad parece haber sido solucionada en las versiones anteriores a la 7.54.1 y en la 7.60.0 y posteriores.

Dario Weisser discovered that curl incorrectly handled long FTP server command replies. If a user or automated system were tricked into connecting to a malicious FTP server, a remote attacker could use this issue to cause curl to crash, resulting in a denial of service, or possibly execute arbitrary code. This issue only affected Ubuntu 17.10 and Ubuntu 18.04 LTS. Max Dymond discovered that curl incorrectly handled certain RTSP responses. If a user or automated system were tricked into connecting to a malicious server, a remote attacker could use this issue to cause curl to crash, resulting in a denial of service, or possibly obtain sensitive information. Various other issues were also addressed.