Cisco Nexus Series Switches IP Stack Processing Denial of Service Vulnerability
RISK: Medium Risk
TYPE: Servers - Network Management
A vulnerability has been identified in Cisco NX-OS, which can be exploited by malicious people to cause a DoS (Denial of Service).
The vulnerability is caused due to an error within the IP stack processing when obtaining layer 4 (UDP or TCP) information and can be exploited to reload a device by sending a specially crafted IP packet.
Impact
- Denial of Service
System / Technologies affected
- Cisco Nexus 1000v Series Switches
- Cisco Nexus 5000 Series Switches
- Cisco Nexus 7000 Series Switches
- Cisco NX-OS 5.x
Solutions
Before installation of the software, please visit the software manufacturer web-site for more details.
For Cisco Nexus 1000v Series Switches versions 4.2.x
Update to version 4.2(1)SV1(5.1)For Cisco Nexus 5000 Series Switches versions 4.x and 5.0.x
Update to version5.0(2)N1(1)For Cisco Nexus 7000 Series Switches versions 4.2.x
Update to version 4.2.8For Cisco Nexus 7000 Series Switches versions 5.0.x
Update to version 5.0.5For Cisco Nexus 7000 Series Switches versions 5.1.x
Update to version 5.1.1
Vulnerability Identifier
Source
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