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Last updated: 10/25/2014 8:23:54 PM

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Vulnerability Summary for CVE-2013-5479

Original release date: 09/27/2013
Last revised: 10/07/2013
Source: US-CERT/NIST

Overview

The DNS-over-TCP implementation in Cisco IOS 12.2 and 15.0 through 15.3, when NAT is used, allows remote attackers to cause a denial of service (device reload) via a crafted IPv4 DNS TCP stream, aka Bug ID CSCtn53730.

Impact

CVSS Severity (version 2.0):
CVSS v2 Base Score: 7.8 (HIGH) (AV:N/AC:L/Au:N/C:N/I:N/A:C) (legend)
Impact Subscore: 6.9
Exploitability Subscore: 10.0
CVSS Version 2 Metrics:
Access Vector: Network exploitable
Access Complexity: Low
Authentication: Not required to exploit
Impact Type: Allows disruption of service

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External Source: CISCO
Name: 20130925 Cisco IOS Software Network Address Translation Vulnerabilities
Type: Advisory

Technical Details

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