Cisco.IPv4.DoS

description-logoDescription

Cisco IOS, 11.X and 12.0 through 12.2, has a denial of service vulnerability. A remote attacker can cause multiple Cisco routers and switches running Cisco IOS to stop processing traffic, so that the device must be rebooted to regain normal functionality.

affected-products-logoAffected Products

Denial of Service

Impact logoImpact

Cisco Systems, Inc.: Cisco IOS 11.1CA
Cisco Systems, Inc.: Cisco IOS 11.2
Cisco Systems, Inc.: Cisco IOS 11.2P
Cisco Systems, Inc.: Cisco IOS 11.3
Cisco Systems, Inc.: Cisco IOS 11.3T
Cisco Systems, Inc.: Cisco IOS 12.0
Cisco Systems, Inc.: Cisco IOS 12.0(2) to 12.0(7)
Cisco Systems, Inc.: Cisco IOS 12.0DA - 12.0DC
Cisco Systems, Inc.: Cisco IOS 12.0S
Cisco Systems, Inc.: Cisco IOS 12.0SC
Cisco Systems, Inc.: Cisco IOS 12.0SL
Cisco Systems, Inc.: Cisco IOS 12.0SP
Cisco Systems, Inc.: Cisco IOS 12.0ST
Cisco Systems, Inc.: Cisco IOS 12.0SX
Cisco Systems, Inc.: Cisco IOS 12.0SY
Cisco Systems, Inc.: Cisco IOS 12.0SZ
Cisco Systems, Inc.: Cisco IOS 12.0T
Cisco Systems, Inc.: Cisco IOS 12.0W5
Cisco Systems, Inc.: Cisco IOS 12.0WC
Cisco Systems, Inc.: Cisco IOS 12.0WT
Cisco Systems, Inc.: Cisco IOS 12.1
Cisco Systems, Inc.: Cisco IOS 12.1AA
Cisco Systems, Inc.: Cisco IOS 12.1AX
Cisco Systems, Inc.: Cisco IOS 12.1AY
Cisco Systems, Inc.: Cisco IOS 12.1DA-12.1DC
Cisco Systems, Inc.: Cisco IOS 12.1E
Cisco Systems, Inc.: Cisco IOS 12.1EA
Cisco Systems, Inc.: Cisco IOS 12.1EB
Cisco Systems, Inc.: Cisco IOS 12.1EC
Cisco Systems, Inc.: Cisco IOS 12.1EV
Cisco Systems, Inc.: Cisco IOS 12.1EW
Cisco Systems, Inc.: Cisco IOS 12.1EX
Cisco Systems, Inc.: Cisco IOS 12.1EY
Cisco Systems, Inc.: Cisco IOS 12.1T
Cisco Systems, Inc.: Cisco IOS 12.1X - 12.1XD
Cisco Systems, Inc.: Cisco IOS 12.1X F- 12.1XJ
Cisco Systems, Inc.: Cisco IOS 12.1XL
Cisco Systems, Inc.: Cisco IOS 12.1XM
Cisco Systems, Inc.: Cisco IOS 12.1XP - 12.1XR
Cisco Systems, Inc.: Cisco IOS 12.1XT - 12.1XV
Cisco Systems, Inc.: Cisco IOS 12.1YB - 12.1YF
Cisco Systems, Inc.: Cisco IOS 12.1YH
Cisco Systems, Inc.: Cisco IOS 12.1YI
Cisco Systems, Inc.: Cisco IOS 12.1YJ
Cisco Systems, Inc.: Cisco IOS 12.2
Cisco Systems, Inc.: Cisco IOS 12.2B
Cisco Systems, Inc.: Cisco IOS 12.2BC
Cisco Systems, Inc.: Cisco IOS 12.2BW
Cisco Systems, Inc.: Cisco IOS 12.2BX
Cisco Systems, Inc.: Cisco IOS 12.2BZ
Cisco Systems, Inc.: Cisco IOS 12.2CX
Cisco Systems, Inc.: Cisco IOS 12.2CY
Cisco Systems, Inc.: Cisco IOS 12.2DA
Cisco Systems, Inc.: Cisco IOS 12.2DD
Cisco Systems, Inc.: Cisco IOS 12.2DX
Cisco Systems, Inc.: Cisco IOS 12.2JA
Cisco Systems, Inc.: Cisco IOS 12.2MB
Cisco Systems, Inc.: Cisco IOS 12.2MC
Cisco Systems, Inc.: Cisco IOS 12.2S
Cisco Systems, Inc.: Cisco IOS 12.2SX - 12.2SZ
Cisco Systems, Inc.: Cisco IOS 12.2T
Cisco Systems, Inc.: Cisco IOS 12.2X
Cisco Systems, Inc.: Cisco IOS 12.2Y - 12.2YD
Cisco Systems, Inc.: Cisco IOS 12.2YF - 12.2YH
Cisco Systems, Inc.: Cisco IOS 12.2YJ - 12.2YZ

recomended-action-logoRecommended Actions

Apply the appropriate patch for your system.
http://www.cisco.com/warp/public/707/cisco-sa-20030717-blocked.shtml

Telemetry logoTelemetry

Coverage

IPS (Regular DB)
IPS (Extended DB)

Version Updates

Date Version Detail
2019-06-19 14.635 Default_action:pass:drop
2019-02-08 14.546 Sig Added
2019-02-05 14.542 Status:enable:disable
2019-01-31 14.538 Status:disable:enable