Vulnerability CVE-2014-3335
Published: 2014-08-26

Description:
Cisco IOS XR 4.3(.2) and earlier on ASR 9000 devices does not properly perform NetFlow sampling of packets with multicast destination MAC addresses, which allows remote attackers to cause a denial of service (chip and card hangs) via a crafted packet, aka Bug ID CSCup77750.

CVSS2 => (AV:A/AC:H/Au:N/C:N/I:N/A:C)

CVSS Base Score
Impact Subscore
Exploitability Subscore
4.6/10
6.9/10
3.2/10
Exploit range
Attack complexity
Authentication
Adjacent network
High
No required
Confidentiality impact
Integrity impact
Availability impact
None
None
Complete
Affected software
Cisco -> Asr 9000 rsp440 router 
Cisco -> Asr 9001 
Cisco -> Asr 9006 
Cisco -> Asr 9010 
Cisco -> Asr 9904 
Cisco -> Asr 9912 
Cisco -> Asr 9922 
Cisco -> Ios xr 

 References:
http://tools.cisco.com/security/center/content/CiscoSecurityNotice/CVE-2014-3335
http://tools.cisco.com/security/center/viewAlert.x?alertId=35416
http://www.securityfocus.com/bid/69383
http://www.securitytracker.com/id/1030757
http://xforce.iss.net/xforce/xfdb/95443
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