Ubuntu Security Notice USN-4459-1

Ubuntu Security Notice 4459-1 - It was discovered that Salt allows remote attackers to determine which files exist on the server. An attacker could use that to extract sensitive information. It was discovered that Salt has a vulnerability that allows an user to bypass authentication. An attacker could use that to extract sensitive information, execute arbitrary code or crash the server. It was discovered that Salt is vulnerable to command injection. This allows an unauthenticated attacker with network access to the API endpoint to execute arbitrary code on the salt-api host. Various other issues were also addressed.