CVE-2019-12528

Se detectó un problema en Squid versiones anteriores a 4.10. Permite a un servidor FTP diseñado desencadenar una divulgación de información confidencial de la memoria de la pila, tal y como la información asociada con las sesiones de otros usuarios o procesos que no son de Squid.

A flaw was found in squid. It allows a crafted FTP server to trigger disclosure of sensitive information from heap memory, such as information associated with other users' sessions or non-Squid processes.

Jeriko One discovered that Squid incorrectly handled memory when connected to an FTP server. A remote attacker could possibly use this issue to obtain sensitive information from Squid memory. Regis Leroy discovered that Squid incorrectly handled certain HTTP requests. A remote attacker could possibly use this issue to access server resources prohibited by earlier security filters. Guido Vranken discovered that Squid incorrectly handled certain buffer operations when acting as a reverse proxy. A remote attacker could use this issue to cause Squid to crash, resulting in a denial of service, or possibly execute arbitrary code. Various other issues were also addressed.