Cisco Bug: CSCup67822 - IOS-XR / DHCPv4 server denial of service vulnerability.
Nov 02, 2020
- Cisco ASR 9000 Series Aggregation Services Routers
Known Affected Releases
Symptom: DHCP process of IOS XR software may stop responding to DHCP requests on a particular interface. Messages on other interfaces continue to be serviced as normal. Conditions: This can happen after the DHCP process receives a large scale of specifically malformed DHCP messages on a particular interface.
Bug details contain sensitive information and therefore require a Cisco.com account to be viewed.
Bug Details Include
- Full Description (including symptoms, conditions and workarounds)
- Known Fixed Releases
- Related Community Discussions
- Number of Related Support Cases