Unintended Response to Unicast Queries in Synology DiskStation Manager (DSM) Allows for Denial of Service and Information Disclosure

CVE-2015-2809 · MEDIUM Severity

AV:N/AC:L/AU:N/C:P/I:N/A:N

The Multicast DNS (mDNS) responder in Synology DiskStation Manager (DSM) before 3.1 inadvertently responds to unicast queries with source addresses that are not link-local, which allows remote attackers to cause a denial of service (traffic amplification) or obtain potentially sensitive information via port-5353 UDP packets to the Avahi component.

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