National Cyber Awareness System
Vulnerability Summary for CVE-2012-4620
Original release date:09/27/2012
Last revised:02/14/2013
Source:
US-CERT/NIST
Overview
Cisco IOS 12.2 and 15.0 through 15.2 on Cisco 10000 series routers, when a tunnel interface exists, allows remote attackers to cause a denial of service (interface queue wedge) via tunneled (1) GRE/IP, (2) IPIP, or (3) IPv6 in IPv4 packets, aka Bug ID CSCts66808.
Impact
CVSS Severity (version 2.0):
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 serviceUnknown
References to Advisories, Solutions, and Tools
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External Source: XF
Name: ciscoios-tunneled-dos(78883)
External Source: SECTRACK
Name: 1027578
External Source: BID
Name: 55696
External Source: CISCO
Name: 20120926 Cisco IOS Software Tunneled Traffic Queue Wedge Vulnerability
Type: Advisory
Technical Details
- Resource Management Errors (CWE-399)