A vulnerability classified as problematic was found in Digium Asterisk (Communications System) (the affected version is unknown). Affected by this vulnerability is an unknown code of the component RTP Handler. The manipulation with an unknown input leads to a resource consumption vulnerability. The CWE definition for the vulnerability is CWE-400. The product does not properly control the allocation and maintenance of a limited resource, thereby enabling an actor to influence the amount of resources consumed, eventually leading to the exhaustion of available resources. As an impact it is known to affect availability.

The weakness was released 09/08/2016 by Etienne Lessard as AST-2016-007 as confirmed mailinglist post (Full-Disclosure). It is possible to read the advisory at seclists.org. The public release was coordinated with Digium. The attack can be launched remotely. The technical details are unknown and an exploit is not publicly available. The attack technique deployed by this issue is T1499 according to MITRE ATT&CK.

The vulnerability was handled as a non-public zero-day exploit for at least 34 days. During that time the estimated underground price was around $0-$5k.

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

Entry connected to this vulnerability is available at 91710.

Productinfo

Type

• Communications System

Vendor

• Digium

Name

• Asterisk

License

• open-source

CPE 2.3info

• 🔍

CPE 2.2info

• 🔍

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