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CVE-2018-0372

CVE information

Published

5 years ago

Last Modified

4 years ago

CVSSv2.0 Severity

High

CVSSv3.1 Severity

High

Impact Analysis

Description

A vulnerability in the DHCPv6 feature of the Cisco Nexus 9000 Series Fabric Switches in Application-Centric Infrastructure (ACI) Mode could allow an unauthenticated, remote attacker to cause the device to run low on system memory, which could result in a Denial of Service (DoS) condition on an affected system. The vulnerability is due to improper memory management when DHCPv6 packets are received on an interface of the targeted device. An attacker could exploit this vulnerability by sending a high number of malicious DHCPv6 packets to be processed by an affected device. A successful exploit could allow the attacker to cause the system to run low on memory, which could cause an eventual reboot of an affected device. The vulnerability only applies to IPv6 protocol packets and not for IPv4 protocol packets. This vulnerability affects Cisco Nexus 9000 Series Fabric Switches in ACI Mode running software version 13.0(1k). The vulnerability can only be exploited when unicast routing is enabled on the Bridge Domain (BD). DHCP and DHCP relay do not have to be configured for the vulnerability to be exploited. Cisco Bug IDs: CSCvg38918..

CVSSv2.0 Score

Severity
High
Base Score
7.8/10
Exploit Score
10/10
Access Vector
Network
Access Complexity
Low
Authentication Required
None
Impact Score
6.9/10
Confidentiality Impact
None
Availability Impact
Complete
Integrity Impact
None

CVSSv3.1 Score

Severity
High
Base Score
7.5/10
Exploit Score
3.9/10
Access Vector
Network
Access Complexity
Low
Privileges Required
None
Impact Score
3.6/10
Confidentiality Impact
None
Availability Impact
High
Integrity Impact
None
Scope
Unchanged
User Interaction
None

Products Affected

CPE Affected Vulnerable Excluding Edit
cpe:2.3:o:cisco:nx-os:13.0\(1k\):*:*:*:*:*:*:*
  Yes
-
cpe:2.3:h:cisco:nexus_92160yc-x:-:*:*:*:*:*:*:*
  No
-
cpe:2.3:h:cisco:nexus_92304qc:-:*:*:*:*:*:*:*
  No
-
cpe:2.3:h:cisco:nexus_9236c:-:*:*:*:*:*:*:*
  No
-
cpe:2.3:h:cisco:nexus_9272q:-:*:*:*:*:*:*:*
  No
-
cpe:2.3:h:cisco:nexus_93108tc-ex:-:*:*:*:*:*:*:*
  No
-
cpe:2.3:h:cisco:nexus_93120tx:-:*:*:*:*:*:*:*
  No
-
cpe:2.3:h:cisco:nexus_93128tx:-:*:*:*:*:*:*:*
  No
-
cpe:2.3:h:cisco:nexus_93180yc-ex:-:*:*:*:*:*:*:*
  No
-
cpe:2.3:h:cisco:nexus_9332pq:-:*:*:*:*:*:*:*
  No
-
cpe:2.3:h:cisco:nexus_9372px:-:*:*:*:*:*:*:*
  No
-
cpe:2.3:h:cisco:nexus_9372tx:-:*:*:*:*:*:*:*
  No
-
cpe:2.3:h:cisco:nexus_9396px:-:*:*:*:*:*:*:*
  No
-
cpe:2.3:h:cisco:nexus_9396tx:-:*:*:*:*:*:*:*
  No
-
cpe:2.3:h:cisco:nexus_9504:-:*:*:*:*:*:*:*
  No
-
cpe:2.3:h:cisco:nexus_9508:-:*:*:*:*:*:*:*
  No
-
cpe:2.3:h:cisco:nexus_9516:-:*:*:*:*:*:*:*
  No
-
cpe:2.3:h:cisco:nexus_n9k-c9508-fm-r:-:*:*:*:*:*:*:*
  No
-
cpe:2.3:h:cisco:nexus_n9k-x9636c-r:-:*:*:*:*:*:*:*
  No
-
cpe:2.3:h:cisco:nexus_n9k-x9636q-r:-:*:*:*:*:*:*:*
  No
-