Overview
- Description
- A vulnerability in the Pong tool of Cisco NX-OS Software could allow an unauthenticated, adjacent attacker to cause a reload of an affected device, resulting in a denial of service (DoS) condition. The vulnerability exists because the affected software attempts to free the same area of memory twice. An attacker could exploit this vulnerability by sending a pong request to an affected device from a location on the network that causes the pong reply packet to egress both a FabricPath port and a non-FabricPath port. An exploit could allow the attacker to cause a dual or quad supervisor virtual port-channel (vPC) to reload. This vulnerability affects the following products when running Cisco NX-OS Software Release 7.2(1)D(1), 7.2(2)D1(1), or 7.2(2)D1(2) with both the Pong and FabricPath features enabled and the FabricPath port is actively monitored via a SPAN session: Cisco Nexus 7000 Series Switches and Cisco Nexus 7700 Series Switches. Cisco Bug IDs: CSCuv98660.
- Source
- ykramarz@cisco.com
- NVD status
- Modified
Risk scores
CVSS 3.0
- Type
- Primary
- Base score
- 7.4
- Impact score
- 4
- Exploitability score
- 2.8
- Vector string
- CVSS:3.0/AV:A/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H
- Severity
- HIGH
CVSS 2.0
- Type
- Primary
- Base score
- 6.1
- Impact score
- 6.9
- Exploitability score
- 6.5
- Vector string
- AV:A/AC:L/Au:N/C:N/I:N/A:C
Social media
- Hype score
- Not currently trending
Configurations
[
{
"nodes": [
{
"negate": false,
"cpeMatch": [
{
"criteria": "cpe:2.3:o:cisco:nx-os:7.2\\(1\\)d\\(1\\):*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "2622260B-F77B-4510-9B9D-078B994BBE64"
},
{
"criteria": "cpe:2.3:o:cisco:nx-os:7.2\\(2\\)d1\\(1\\):*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "2768DEF1-3DFA-4683-9D8D-C5915D8E7365"
},
{
"criteria": "cpe:2.3:o:cisco:nx-os:7.2\\(2\\)d1\\(2\\):*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "3CD05045-E867-4B7E-ACE4-7B6EA69971AF"
}
],
"operator": "OR"
}
]
}
]