CVE-2020-14318

Se encontró un fallo en la manera en que samba manejaba los permisos de archivos y directorios. Un usuario autenticado podría usar este fallo para conseguir acceso a determinada información de archivos y directorios que de otra manera no estaría disponible para el atacante

A flaw was found in the way Samba handled file and directory permissions. This flaw allows an authenticated user to gain access to certain file and directory information, which otherwise would be unavailable. The highest threat from this vulnerability is to confidentiality.

Steven French discovered that Samba incorrectly handled ChangeNotify permissions. A remote attacker could possibly use this issue to obtain file name information. Bas Alberts discovered that Samba incorrectly handled certain winbind requests. A remote attacker could possibly use this issue to cause winbind to crash, resulting in a denial of service. Francis Brosnan Blázquez discovered that Samba incorrectly handled certain invalid DNS records. A remote attacker could possibly use this issue to cause the DNS server to crash, resulting in a denial of service. Various other issues were also addressed.