CVE-2021-1621

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Summary

CVECVE-2021-1621
StatePUBLIC
Assigner[email protected]
Source PriorityCVE Program / NVD first with legacy fallback
Published2021-09-23 03:15:00 UTC
Updated2023-11-07 03:28:00 UTC
DescriptionA vulnerability in the Layer 2 punt code of Cisco IOS XE Software could allow an unauthenticated, adjacent attacker to cause a queue wedge on an interface that receives specific Layer 2 frames, resulting in a denial of service (DoS) condition. This vulnerability is due to improper handling of certain Layer 2 frames. An attacker could exploit this vulnerability by sending specific Layer 2 frames on the segment the router is connected to. A successful exploit could allow the attacker to cause a queue wedge on the interface, resulting in a DoS condition.

Risk And Classification

Problem Types: NVD-CWE-noinfo

NVD Known Affected Configurations (CPE 2.3)

TypeVendorProductVersionUpdateEditionLanguage
Hardware Cisco 1000 Integrated Services Router - All All All
Hardware Cisco 1100-4g/6g Integrated Services Router - All All All
Hardware Cisco 1100-4p Integrated Services Router - All All All
Hardware Cisco 1100-8p Integrated Services Router - All All All
Hardware Cisco 1100 Integrated Services Router - All All All
Hardware Cisco 1101-4p Integrated Services Router - All All All
Hardware Cisco 1101 Integrated Services Router - All All All
Hardware Cisco 1109-2p Integrated Services Router - All All All
Hardware Cisco 1109-4p Integrated Services Router - All All All
Hardware Cisco 1109 Integrated Services Router - All All All
Hardware Cisco 1111x-8p Integrated Services Router - All All All
Hardware Cisco 1111x Integrated Services Router - All All All
Hardware Cisco 111x Integrated Services Router - All All All
Hardware Cisco 1120 Integrated Services Router - All All All
Hardware Cisco 1160 Integrated Services Router - All All All
Hardware Cisco 4000 Integrated Services Router - All All All
Hardware Cisco 4221 Integrated Services Router - All All All
Hardware Cisco 4321 Integrated Services Router - All All All
Hardware Cisco 4331 Integrated Services Router - All All All
Hardware Cisco 4351 Integrated Services Router - All All All
Hardware Cisco 4431 Integrated Services Router - All All All
Hardware Cisco 4451-x Integrated Services Router - All All All
Hardware Cisco 4451 Integrated Services Router - All All All
Hardware Cisco 4461 Integrated Services Router - All All All
Hardware Cisco Asr 1000 - All All All
Hardware Cisco Asr 1000-x - All All All
Hardware Cisco Asr 1001 - All All All
Hardware Cisco Asr 1001-hx - All All All
Hardware Cisco Asr 1001-hx R - All All All
Hardware Cisco Asr 1001-x - All All All
Hardware Cisco Asr 1001-x R - All All All
Hardware Cisco Asr 1002 - All All All
Hardware Cisco Asr 1002-hx - All All All
Hardware Cisco Asr 1002-hx R - All All All
Hardware Cisco Asr 1002-x - All All All
Hardware Cisco Asr 1002-x R - All All All
Hardware Cisco Asr 1004 - All All All
Hardware Cisco Asr 1006 - All All All
Hardware Cisco Asr 1006-x - All All All
Hardware Cisco Asr 1009-x - All All All
Hardware Cisco Asr 1013 - All All All
Hardware Cisco Asr 1023 - All All All
Hardware Cisco Csr 1000v - All All All
Operating System Cisco Ios Xe All All All All
Hardware Cisco Isrv - All All All
Hardware Cisco Isr 1000 - All All All
Hardware Cisco Isr 1100 - All All All
Hardware Cisco Isr 1100-4g/6g - All All All
Hardware Cisco Isr 1100-4p - All All All
Hardware Cisco Isr 1100-8p - All All All
Hardware Cisco Isr 1101 - All All All
Hardware Cisco Isr 1101-4p - All All All
Hardware Cisco Isr 1109 - All All All
Hardware Cisco Isr 1109-2p - All All All
Hardware Cisco Isr 1109-4p - All All All
Hardware Cisco Isr 1111x - All All All
Hardware Cisco Isr 1111x-8p - All All All
Hardware Cisco Isr 111x - All All All
Hardware Cisco Isr 1120 - All All All
Hardware Cisco Isr 1160 - All All All
Hardware Cisco Isr 4000 - All All All
Hardware Cisco Isr 4221 - All All All
Hardware Cisco Isr 4321 - All All All
Hardware Cisco Isr 4331 - All All All
Hardware Cisco Isr 4351 - All All All
Hardware Cisco Isr 4431 - All All All
Hardware Cisco Isr 4451 - All All All
Hardware Cisco Isr 4451-x - All All All
Hardware Cisco Isr 4461 - All All All

References

ReferenceSourceLinkTags
Cisco IOS XE Software Interface Queue Wedge 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

Legacy QID Mappings

  • 317047 Cisco Internetwork Operating System (IOS) XE Software Interface Queue Wedge Denial of Service (DOS) Vulnerability (cisco-sa-quewedge-69BsHUBW)
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