QID 317223

Date Published: 2022-10-04

QID 317223: Cisco Internetwork Operating System (IOS) XE Wireless Controller Software for the Catalyst 9000 Family DHCP Processing Denial of Service (DoS) Vulnerability (cisco-sa-wlc-dhcp-dos-76pCjPxK)

A vulnerability in the DHCP processing functionality of Cisco IOS XE Wireless Controller Software for the Catalyst 9000 Family could allow an unauthenticated, remote attacker to cause a denial of service (DoS) condition.

Affected Products
This vulnerability affects the following Cisco products if they are running a vulnerable release of Cisco IOS XE Software and they have the DHCP TLV caching feature enabled:
Catalyst 9800-CL Wireless Controllers for Cloud
Catalyst 9800 Series Wireless Controllers
Note: This QID does not check if DHCP TLV caching feature is enabled.

A successful exploit could allow the attacker to cause the device to reload, resulting in a DoS condition.

  • CVSS V3 rated as High - 7.5 severity.
  • CVSS V2 rated as High - 7.8 severity.
    • Solution

    Customers are advised to refer to cisco-sa-wlc-dhcp-dos-76pCjPxK for more information.

    Vendor References

    CVEs related to QID 317223

    CVE-2022-20847 |
    Software Advisories
    Advisory ID Software Component Link
    cisco-sa-wlc-dhcp-dos-76pCjPxK URL Logo tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-wlc-dhcp-dos-76pCjPxK
    By selecting these links, you may be leaving CVEreport webspace. We have provided these links to other websites because they may have information that would be of interest to you. No inferences should be drawn on account of other sites being referenced, or not, from this page. There may be other websites that are more appropriate for your purpose. CVEreport does not necessarily endorse the views expressed, or concur with the facts presented on these sites. Further, CVEreport does not endorse any commercial products that may be mentioned on these sites. Please address comments about any linked pages to [email protected].