CVE-2017-6627

Basic Information

CVE State

PUBLISHED

Reserved Date

March 09, 2017

Published Date

September 07, 2017

Last Updated

February 04, 2025

Vendor

n/a

Product

Cisco IOS and Cisco IOS XE

Description

A vulnerability in the UDP processing code of Cisco IOS 15.1, 15.2, and 15.4 and IOS XE 3.14 through 3.18 could allow an unauthenticated, remote attacker to cause the input queue of an affected system to hold UDP packets, causing an interface queue wedge and a denial of service (DoS) condition. The vulnerability is due to Cisco IOS Software application changes that create UDP sockets and leave the sockets idle without closing them. An attacker could exploit this vulnerability by sending UDP packets with a destination port of 0 to an affected device. A successful exploit could allow the attacker to cause UDP packets to be held in the input interfaces queue, resulting in a DoS condition. The input interface queue will stop holding UDP packets when it receives 250 packets. Cisco Bug IDs: CSCup10024, CSCva55744, CSCva95506.

CVSS Scores

SSVC Information

Exploitation

active

Automatable

Yes

Technical Impact

partial

Exploit Status

Exploited in the Wild

Yes (added 2022-03-03 00:00:00 UTC) Source