A vulnerability in the network stack of Cisco NX-OS Software could allow an unauthenticated, remote attacker to cause a denial of service (DoS) condition on an affected device. This vulnerability exists because the software improperly releases resources when it processes certain IPv6 packets that are destined to an affected device. An attacker could exploit this vulnerability by sending multiple crafted IPv6 packets to an affected device. A successful exploit could cause the network stack to run out of available buffers, impairing operations of control plane and management plane protocols and resulting in a DoS condition. Manual intervention would be required to restore normal operations on the affected device. For more information about the impact of this vulnerability, see the Details section of this advisory.
CVSS Details
- CVSS 3.1 Base Score: 8.6
- CVSS 3.1 Vector: (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H)
Covered by Rapid7
| Product | Vendor Advisory | Solution File | Added | Published |
|---|---|---|---|---|
| Cisco Nx Os | update-nxos | Feb 25, 2021 | Feb 25, 2021 | |
| Cisco Ucs_device | cisco-ucs-device-upgrade-4_0-4kcisco-ucs-device-upgrade-4_1-1e | Mar 24, 2021 | Feb 24, 2021 | |
| Cisco Ucs_manager | cisco-ucs-manager-upgrade-latest | Mar 30, 2021 | Feb 24, 2021 |
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