CVSS2
Attack Vector
ADJACENT_NETWORK
Attack Complexity
HIGH
Authentication
NONE
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
COMPLETE
AV:A/AC:H/Au:N/C:N/I:N/A:C
CVSS3
Attack Vector
ADJACENT
Attack Complexity
HIGH
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
HIGH
CVSS:3.0/AV:A/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H
EPSS
Percentile
51.7%
A vulnerability in the ASIC UDP ingress receive function of Cisco Gigabit Switch Router (GSR) 12000 Series Routers could allow an unauthenticated, remote attacker to cause a partial denial of service (DoS) condition when one line card in the router unexpectedly restarts.
The vulnerability is due to improper input validation for the presence of a Bidirectional Forwarding Detection (BFD) header on the UDP packet. An attacker could exploit this vulnerability by sending a crafted UDP packet with a specific UDP port range to the affected device. An exploit could allow the attacker to cause a partial denial of service condition when a line card unexpectedly restarts.
Cisco has released software updates that address this vulnerability. Workarounds that address this vulnerability are available.
This advisory is available at the following link: https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20160311-gsr[“https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20160311-gsr”]
CVSS2
Attack Vector
ADJACENT_NETWORK
Attack Complexity
HIGH
Authentication
NONE
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
COMPLETE
AV:A/AC:H/Au:N/C:N/I:N/A:C
CVSS3
Attack Vector
ADJACENT
Attack Complexity
HIGH
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
HIGH
CVSS:3.0/AV:A/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H
EPSS
Percentile
51.7%