Cisco IOS XE Software for Catalyst 9000 Family Wireless Controllers CAPWAP Denial of Service Vulnerabilities
Multiple vulnerabilities in the Control and Provisioning of Wireless Access Points (CAPWAP) protocol processing of Cisco IOS XE Software for Cisco Catalyst 9000 Family Wireless Controllers could allow an unauthenticated, remote attacker to cause a denial of service (DoS) condition on an affected device. These vulnerabilities are due to insufficient validation of CAPWAP packets. An attacker could exploit the vulnerabilities by sending a malformed CAPWAP packet to an affected device. A successful exploit could allow the attacker to cause the affected device to crash and reload, resulting in a DoS condition. Cisco has released software updates that address this vulnerability. There are no workarounds that address this vulnerability. This advisory is part of the September 2021 release of the Cisco IOS and IOS XE Software Security Advisory Bundled Publication. For a complete list of the advisories and links to them, see Cisco Event Response: September 2021 Semiannual Cisco IOS and IOS XE Software Security Advisory Bundled Publication. ["https://sec.cloudapps.cisco.com/security/center/viewErp.x?alertId=ERP-74581"]
beschreibt (3)
Zugehörige CVEs.
| ID | Schweregrad | ausnutzbar | ||
|---|---|---|---|---|
| CVE-2021-34769US | high7.5 | — | ||
Multiple vulnerabilities in the Control and Provisioning of Wireless Access Points (CAPWAP) protocol processing of Cisco IOS XE Software for Cisco Catalyst 9000 Family Wireless Con… | ||||
| CVE-2021-34768US | high7.5 | — | ||
Multiple vulnerabilities in the Control and Provisioning of Wireless Access Points (CAPWAP) protocol processing of Cisco IOS XE Software for Cisco Catalyst 9000 Family Wireless Con… | ||||
| CVE-2021-1565US | high8.6 | — | ||
Multiple vulnerabilities in the Control and Provisioning of Wireless Access Points (CAPWAP) protocol processing of Cisco IOS XE Software for Cisco Catalyst 9000 Family Wireless Con… | ||||
Referenzen
Externe Belege — Patches, Meldungen, Analysen.
- Cisco IOS XE Software for Catalyst 9000 Family Wireless Controllers CAPWAP Denial of Service Vulnerabilitiesself
- Cisco Security Vulnerability Policyexternal
- considering software upgradesexternal
- Cisco Software Checkerexternal
- Cisco Event Response: September 2021 Semiannual Cisco IOS and IOS XE Software Security Advisory Bundled Publicationexternal
- https://www.cisco.com/c/en/us/products/end-user-license-agreement.htmlexternal
- https://www.cisco.com/c/en/us/support/web/tsd-cisco-worldwide-contacts.htmlexternal
- Cisco Security Advisories pageexternal
Behebungen (29)
- Behoben16.10.1
Cisco has released software updates that address this vulnerability.
https://software.cisco.com - Behoben16.10.1e
Cisco has released software updates that address this vulnerability.
https://software.cisco.com - Behoben16.10.1s
Cisco has released software updates that address this vulnerability.
https://software.cisco.com - Behoben16.11.1
Cisco has released software updates that address this vulnerability.
https://software.cisco.com - Behoben16.11.1a
Cisco has released software updates that address this vulnerability.
https://software.cisco.com - Behoben16.11.1b
Cisco has released software updates that address this vulnerability.
https://software.cisco.com - Behoben16.11.1c
Cisco has released software updates that address this vulnerability.
https://software.cisco.com - Behoben16.12.1
Cisco has released software updates that address this vulnerability.
https://software.cisco.com - Behoben16.12.1s
Cisco has released software updates that address this vulnerability.
https://software.cisco.com - Behoben16.12.1t
Cisco has released software updates that address this vulnerability.
https://software.cisco.com - Behoben16.12.2s
Cisco has released software updates that address this vulnerability.
https://software.cisco.com - Behoben16.12.2t
Cisco has released software updates that address this vulnerability.
https://software.cisco.com - Behoben16.12.3
Cisco has released software updates that address this vulnerability.
https://software.cisco.com - Behoben16.12.3s
Cisco has released software updates that address this vulnerability.
https://software.cisco.com - Behoben16.12.4
Cisco has released software updates that address this vulnerability.
https://software.cisco.com - Behoben16.12.4a
Cisco has released software updates that address this vulnerability.
https://software.cisco.com - Behoben17.1.1
Cisco has released software updates that address this vulnerability.
https://software.cisco.com - Behoben17.1.1s
Cisco has released software updates that address this vulnerability.
https://software.cisco.com - Behoben17.1.1t
Cisco has released software updates that address this vulnerability.
https://software.cisco.com - Behoben17.1.2
Cisco has released software updates that address this vulnerability.
https://software.cisco.com - Behoben17.1.3
Cisco has released software updates that address this vulnerability.
https://software.cisco.com - Behoben17.2.1
Cisco has released software updates that address this vulnerability.
https://software.cisco.com - Behoben17.2.1a
Cisco has released software updates that address this vulnerability.
https://software.cisco.com - Behoben17.3.1
Cisco has released software updates that address this vulnerability.
https://software.cisco.com - Behoben17.3.1
Cisco has released software updates that address this vulnerability.
https://software.cisco.com - Behoben17.3.1
Cisco has released software updates that address this vulnerability.
https://software.cisco.com - Behoben17.3.2
Cisco has released software updates that address this vulnerability.
https://software.cisco.com - Behoben17.3.2a
Cisco has released software updates that address this vulnerability.
https://software.cisco.com - Behoben17.4.1
Cisco has released software updates that address this vulnerability.
https://software.cisco.com
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