CVE-2021-1439

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Summary

CVECVE-2021-1439
StatePUBLIC
Assigner[email protected]
Source PriorityCVE Program / NVD first with legacy fallback
Published2021-03-24 20:15:00 UTC
Updated2023-11-07 03:28:00 UTC
DescriptionA vulnerability in the multicast DNS (mDNS) gateway feature of Cisco Aironet Series Access Points Software could allow an unauthenticated, adjacent attacker to cause a denial of service (DoS) condition on an affected device. This vulnerability is due to insufficient input validation of incoming mDNS traffic. An attacker could exploit this vulnerability by sending a crafted mDNS packet to an affected device through a wireless network that is configured in FlexConnect local switching mode or through a wired network on a configured mDNS VLAN. A successful exploit could allow the attacker to cause the access point (AP) to reboot, resulting in a DoS condition.

Risk And Classification

Problem Types: CWE-120

NVD Known Affected Configurations (CPE 2.3)

TypeVendorProductVersionUpdateEditionLanguage
Hardware Cisco 1100 Integrated Services Router - All All All
Hardware Cisco Aironet 1540 - All All All
Hardware Cisco Aironet 1560 - All All All
Hardware Cisco Aironet 1800 - All All All
Hardware Cisco Aironet 2800 - All All All
Hardware Cisco Aironet 3800 - All All All
Hardware Cisco Aironet 4800 - All All All
Application Cisco Aironet Access Point Software - All All All
Hardware Cisco Catalyst 9100 - All All All
Hardware Cisco Catalyst 9800 - All All All
Operating System Cisco Catalyst 9800 Firmware All All All All
Hardware Cisco Catalyst Iw6300 - All All All
Hardware Cisco Esw6300 - All All All
Hardware Cisco Isr 1100 - All All All

References

ReferenceSourceLinkTags
Cisco Aironet Access Points FlexConnect Multicast DNS Denial of Service Vulnerability CISCO tools.cisco.com
CVE Program record CVE.ORG www.cve.org canonical
NVD vulnerability detail NVD nvd.nist.gov canonical, analysis
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