The IPv6 snooping functionality in the first-hop security subsystem in Cisco IOS 12.2, 15.0, 15.1, 15.2, 15.3, 15.4, and 15.5 and IOS XE 3.2SE, 3.3SE, 3.3XO, 3.4SG, 3.5E, and 3.6E before 3.6.3E; 3.7E before 3.7.2E; 3.9S and 3.10S before 3.10.6S; 3.11S before 3.11.4S; 3.12S and 3.13S before 3.13.3S; and 3.14S before 3.14.2S does not properly implement the Control Plane Protection (aka CPPr) feature, which allows remote attackers to cause a denial of service (device reload) via a flood of ND packets, aka Bug ID CSCus19794.
The product receives input or data, but it does not validate or incorrectly validates that the input has the properties that are required to process the data safely and correctly.
Name | Vendor | Start Version | End Version |
---|---|---|---|
Ios | Cisco | 12.2(50)sy (including) | 12.2(50)sy (including) |
Ios | Cisco | 12.2(50)sy1 (including) | 12.2(50)sy1 (including) |
Ios | Cisco | 12.2(50)sy2 (including) | 12.2(50)sy2 (including) |
Ios | Cisco | 12.2(50)sy3 (including) | 12.2(50)sy3 (including) |
Ios | Cisco | 12.2(50)sy4 (including) | 12.2(50)sy4 (including) |
Ios | Cisco | 15.0(1)ex (including) | 15.0(1)ex (including) |
Ios | Cisco | 15.0(1)sy (including) | 15.0(1)sy (including) |
Ios | Cisco | 15.0(1)sy1 (including) | 15.0(1)sy1 (including) |
Ios | Cisco | 15.0(1)sy2 (including) | 15.0(1)sy2 (including) |
Ios | Cisco | 15.0(1)sy3 (including) | 15.0(1)sy3 (including) |
Ios | Cisco | 15.0(1)sy4 (including) | 15.0(1)sy4 (including) |
Ios | Cisco | 15.0(1)sy5 (including) | 15.0(1)sy5 (including) |
Ios | Cisco | 15.0(1)sy6 (including) | 15.0(1)sy6 (including) |
Ios | Cisco | 15.0(1)sy7 (including) | 15.0(1)sy7 (including) |
Ios | Cisco | 15.0(1)sy7a (including) | 15.0(1)sy7a (including) |
Ios | Cisco | 15.0(1)sy8 (including) | 15.0(1)sy8 (including) |
Ios | Cisco | 15.0(2)ea2 (including) | 15.0(2)ea2 (including) |
Ios | Cisco | 15.0(2)ej (including) | 15.0(2)ej (including) |
Ios | Cisco | 15.0(2)ej1 (including) | 15.0(2)ej1 (including) |
Ios | Cisco | 15.0(2)ez (including) | 15.0(2)ez (including) |
Ios | Cisco | 15.0(2)se (including) | 15.0(2)se (including) |
Ios | Cisco | 15.0(2)se1 (including) | 15.0(2)se1 (including) |
Ios | Cisco | 15.0(2)se2 (including) | 15.0(2)se2 (including) |
Ios | Cisco | 15.0(2)se3 (including) | 15.0(2)se3 (including) |
Ios | Cisco | 15.0(2)se4 (including) | 15.0(2)se4 (including) |
Ios | Cisco | 15.0(2)se5 (including) | 15.0(2)se5 (including) |
Ios | Cisco | 15.0(2)se6 (including) | 15.0(2)se6 (including) |
Ios | Cisco | 15.0(2)se7 (including) | 15.0(2)se7 (including) |
Ios | Cisco | 15.0(2)se8 (including) | 15.0(2)se8 (including) |
Ios | Cisco | 15.0(2a)ex5 (including) | 15.0(2a)ex5 (including) |
Ios | Cisco | 15.1(1)sy (including) | 15.1(1)sy (including) |
Ios | Cisco | 15.1(1)sy1 (including) | 15.1(1)sy1 (including) |
Ios | Cisco | 15.1(1)sy2 (including) | 15.1(1)sy2 (including) |
Ios | Cisco | 15.1(1)sy3 (including) | 15.1(1)sy3 (including) |
Ios | Cisco | 15.1(1)sy4 (including) | 15.1(1)sy4 (including) |
Ios | Cisco | 15.1(1)sy5 (including) | 15.1(1)sy5 (including) |
Ios | Cisco | 15.1(2)sg (including) | 15.1(2)sg (including) |
Ios | Cisco | 15.1(2)sg1 (including) | 15.1(2)sg1 (including) |
Ios | Cisco | 15.1(2)sg2 (including) | 15.1(2)sg2 (including) |
Ios | Cisco | 15.1(2)sg3 (including) | 15.1(2)sg3 (including) |
Ios | Cisco | 15.1(2)sg4 (including) | 15.1(2)sg4 (including) |
Ios | Cisco | 15.1(2)sg5 (including) | 15.1(2)sg5 (including) |
Ios | Cisco | 15.1(2)sg6 (including) | 15.1(2)sg6 (including) |
Ios | Cisco | 15.1(2)sy (including) | 15.1(2)sy (including) |
Ios | Cisco | 15.1(2)sy1 (including) | 15.1(2)sy1 (including) |
Ios | Cisco | 15.1(2)sy2 (including) | 15.1(2)sy2 (including) |
Ios | Cisco | 15.1(2)sy3 (including) | 15.1(2)sy3 (including) |
Ios | Cisco | 15.1(2)sy4 (including) | 15.1(2)sy4 (including) |
Ios | Cisco | 15.1(2)sy4a (including) | 15.1(2)sy4a (including) |
Ios | Cisco | 15.1(2)sy5 (including) | 15.1(2)sy5 (including) |
Ios | Cisco | 15.2(1)e (including) | 15.2(1)e (including) |
Ios | Cisco | 15.2(1)e1 (including) | 15.2(1)e1 (including) |
Ios | Cisco | 15.2(1)e2 (including) | 15.2(1)e2 (including) |
Ios | Cisco | 15.2(1)e3 (including) | 15.2(1)e3 (including) |
Ios | Cisco | 15.2(1)sy (including) | 15.2(1)sy (including) |
Ios | Cisco | 15.2(1)sy0a (including) | 15.2(1)sy0a (including) |
Ios | Cisco | 15.2(2)e (including) | 15.2(2)e (including) |
Ios | Cisco | 15.2(2)e1 (including) | 15.2(2)e1 (including) |
Ios | Cisco | 15.2(2)e2 (including) | 15.2(2)e2 (including) |
Ios | Cisco | 15.2(2)ea1 (including) | 15.2(2)ea1 (including) |
Ios | Cisco | 15.2(2a)e1 (including) | 15.2(2a)e1 (including) |
Ios | Cisco | 15.2(3)e (including) | 15.2(3)e (including) |
Ios | Cisco | 15.2(3)e1 (including) | 15.2(3)e1 (including) |
Ios | Cisco | 15.2(3a)e (including) | 15.2(3a)e (including) |
Ios | Cisco | 15.2(4)s (including) | 15.2(4)s (including) |
Ios | Cisco | 15.2(4)s1 (including) | 15.2(4)s1 (including) |
Ios | Cisco | 15.2(4)s2 (including) | 15.2(4)s2 (including) |
Ios | Cisco | 15.2(4)s3 (including) | 15.2(4)s3 (including) |
Ios | Cisco | 15.2(4)s3a (including) | 15.2(4)s3a (including) |
Ios | Cisco | 15.2(4)s4 (including) | 15.2(4)s4 (including) |
Ios | Cisco | 15.2(4)s4a (including) | 15.2(4)s4a (including) |
Ios | Cisco | 15.2(4)s5 (including) | 15.2(4)s5 (including) |
Ios | Cisco | 15.2(4)s6 (including) | 15.2(4)s6 (including) |
Ios | Cisco | 15.2(4)s7 (including) | 15.2(4)s7 (including) |
Ios | Cisco | 15.3(1)s (including) | 15.3(1)s (including) |
Ios | Cisco | 15.3(1)s2 (including) | 15.3(1)s2 (including) |
Ios | Cisco | 15.3(2)s (including) | 15.3(2)s (including) |
Ios | Cisco | 15.3(2)s0a (including) | 15.3(2)s0a (including) |
Ios | Cisco | 15.3(2)s1 (including) | 15.3(2)s1 (including) |
Ios | Cisco | 15.3(2)s2 (including) | 15.3(2)s2 (including) |
Ios | Cisco | 15.3(3)s (including) | 15.3(3)s (including) |
Ios | Cisco | 15.3(3)s1 (including) | 15.3(3)s1 (including) |
Ios | Cisco | 15.3(3)s2 (including) | 15.3(3)s2 (including) |
Ios | Cisco | 15.3(3)s3 (including) | 15.3(3)s3 (including) |
Ios | Cisco | 15.3(3)s4 (including) | 15.3(3)s4 (including) |
Ios | Cisco | 15.3(3)s5 (including) | 15.3(3)s5 (including) |
Ios | Cisco | 15.4(1)s (including) | 15.4(1)s (including) |
Ios | Cisco | 15.4(1)s1 (including) | 15.4(1)s1 (including) |
Ios | Cisco | 15.4(1)s2 (including) | 15.4(1)s2 (including) |
Ios | Cisco | 15.4(1)s3 (including) | 15.4(1)s3 (including) |
Ios | Cisco | 15.4(2)s (including) | 15.4(2)s (including) |
Ios | Cisco | 15.4(2)s1 (including) | 15.4(2)s1 (including) |
Ios | Cisco | 15.4(2)s2 (including) | 15.4(2)s2 (including) |
Ios | Cisco | 15.4(2)s3 (including) | 15.4(2)s3 (including) |
Ios | Cisco | 15.4(3)s (including) | 15.4(3)s (including) |
Ios | Cisco | 15.4(3)s1 (including) | 15.4(3)s1 (including) |
Ios | Cisco | 15.4(3)s2 (including) | 15.4(3)s2 (including) |
Ios | Cisco | 15.5(1)s (including) | 15.5(1)s (including) |
Ios | Cisco | 15.5(1)s1 (including) | 15.5(1)s1 (including) |
Ios_xe | Cisco | 3.2se.0 (including) | 3.2se.0 (including) |
Ios_xe | Cisco | 3.2se.1 (including) | 3.2se.1 (including) |
Ios_xe | Cisco | 3.2se.2 (including) | 3.2se.2 (including) |
Ios_xe | Cisco | 3.2se.3 (including) | 3.2se.3 (including) |
Ios_xe | Cisco | 3.3se.0 (including) | 3.3se.0 (including) |
Ios_xe | Cisco | 3.3se.1 (including) | 3.3se.1 (including) |
Ios_xe | Cisco | 3.3se.2 (including) | 3.3se.2 (including) |
Ios_xe | Cisco | 3.3se.3 (including) | 3.3se.3 (including) |
Ios_xe | Cisco | 3.3se.4 (including) | 3.3se.4 (including) |
Ios_xe | Cisco | 3.3se.5 (including) | 3.3se.5 (including) |
Ios_xe | Cisco | 3.3xo.0 (including) | 3.3xo.0 (including) |
Ios_xe | Cisco | 3.3xo.1 (including) | 3.3xo.1 (including) |
Ios_xe | Cisco | 3.3xo.2 (including) | 3.3xo.2 (including) |
Ios_xe | Cisco | 3.4sg.0 (including) | 3.4sg.0 (including) |
Ios_xe | Cisco | 3.4sg.1 (including) | 3.4sg.1 (including) |
Ios_xe | Cisco | 3.4sg.2 (including) | 3.4sg.2 (including) |
Ios_xe | Cisco | 3.4sg.3 (including) | 3.4sg.3 (including) |
Ios_xe | Cisco | 3.4sg.4 (including) | 3.4sg.4 (including) |
Ios_xe | Cisco | 3.4sg.5 (including) | 3.4sg.5 (including) |
Ios_xe | Cisco | 3.4sg.6 (including) | 3.4sg.6 (including) |
Ios_xe | Cisco | 3.5e.0 (including) | 3.5e.0 (including) |
Ios_xe | Cisco | 3.5e.1 (including) | 3.5e.1 (including) |
Ios_xe | Cisco | 3.5e.2 (including) | 3.5e.2 (including) |
Ios_xe | Cisco | 3.5e.3 (including) | 3.5e.3 (including) |
Ios_xe | Cisco | 3.6e.0 (including) | 3.6e.0 (including) |
Ios_xe | Cisco | 3.6e.0a (including) | 3.6e.0a (including) |
Ios_xe | Cisco | 3.6e.0b (including) | 3.6e.0b (including) |
Ios_xe | Cisco | 3.6e.1 (including) | 3.6e.1 (including) |
Ios_xe | Cisco | 3.6e.2 (including) | 3.6e.2 (including) |
Ios_xe | Cisco | 3.6e.2a (including) | 3.6e.2a (including) |
Ios_xe | Cisco | 3.7e.0 (including) | 3.7e.0 (including) |
Ios_xe | Cisco | 3.7e.1 (including) | 3.7e.1 (including) |
Ios_xe | Cisco | 3.9s.0 (including) | 3.9s.0 (including) |
Ios_xe | Cisco | 3.9s.1 (including) | 3.9s.1 (including) |
Ios_xe | Cisco | 3.9s.2 (including) | 3.9s.2 (including) |
Ios_xe | Cisco | 3.10s.0 (including) | 3.10s.0 (including) |
Ios_xe | Cisco | 3.10s.0a (including) | 3.10s.0a (including) |
Ios_xe | Cisco | 3.10s.01 (including) | 3.10s.01 (including) |
Ios_xe | Cisco | 3.10s.1 (including) | 3.10s.1 (including) |
Ios_xe | Cisco | 3.10s.2 (including) | 3.10s.2 (including) |
Ios_xe | Cisco | 3.10s.3 (including) | 3.10s.3 (including) |
Ios_xe | Cisco | 3.10s.4 (including) | 3.10s.4 (including) |
Ios_xe | Cisco | 3.10s.5 (including) | 3.10s.5 (including) |
Ios_xe | Cisco | 3.11s.0 (including) | 3.11s.0 (including) |
Ios_xe | Cisco | 3.11s.1 (including) | 3.11s.1 (including) |
Ios_xe | Cisco | 3.11s.2 (including) | 3.11s.2 (including) |
Ios_xe | Cisco | 3.11s.3 (including) | 3.11s.3 (including) |
Ios_xe | Cisco | 3.12s.0 (including) | 3.12s.0 (including) |
Ios_xe | Cisco | 3.12s.1 (including) | 3.12s.1 (including) |
Ios_xe | Cisco | 3.12s.2 (including) | 3.12s.2 (including) |
Ios_xe | Cisco | 3.12s.3 (including) | 3.12s.3 (including) |
Ios_xe | Cisco | 3.13s.0 (including) | 3.13s.0 (including) |
Ios_xe | Cisco | 3.13s.1 (including) | 3.13s.1 (including) |
Ios_xe | Cisco | 3.13s.2 (including) | 3.13s.2 (including) |
Ios_xe | Cisco | 3.14s.0 (including) | 3.14s.0 (including) |
Ios_xe | Cisco | 3.14s.1 (including) | 3.14s.1 (including) |
Input validation is a frequently-used technique for checking potentially dangerous inputs in order to ensure that the inputs are safe for processing within the code, or when communicating with other components. Input can consist of:
Data can be simple or structured. Structured data can be composed of many nested layers, composed of combinations of metadata and raw data, with other simple or structured data. Many properties of raw data or metadata may need to be validated upon entry into the code, such as:
Implied or derived properties of data must often be calculated or inferred by the code itself. Errors in deriving properties may be considered a contributing factor to improper input validation.