CVEvulnerability

CVE-2001-0429

5.0 MEDIUM Published 2001-07-02 Modified 2026-06-16 Official page ↗

Status: Modified
Published: 2001-07-02
Last modified: 2026-06-16
Assigner: [email protected]
CVSS 2.0 ([email protected]): 5.0 MEDIUM — AV:N/AC:L/Au:N/C:N/I:N/A:P

Description

Cisco Catalyst 5000 series switches 6.1(2) and earlier will forward an 802.1x frame on a Spanning Tree Protocol (STP) blocked port, which causes a network storm and a denial of service.

Affected configurations

• cisco catos 4.5\(11\) • cisco catos 4.5.10 • cisco catos 5.5\(4b\) • cisco catos 5.5\(6\) • cisco catos 6.1\(1c\) • cisco catos 6.1\(2\) • cisco catos 6.1.2

References

http://www.ciac.org/ciac/bulletins/l-072.shtml www.ciac.org
http://www.cisco.com/warp/public/707/cat5k-8021x-vuln-pub.shtml Patch, Vendor Advisory
http://www.securityfocus.com/bid/2604 Patch, Vendor Advisory
https://exchange.xforce.ibmcloud.com/vulnerabilities/6379 exchange.xforce.ibmcloud.com
http://www.ciac.org/ciac/bulletins/l-072.shtml www.ciac.org
http://www.cisco.com/warp/public/707/cat5k-8021x-vuln-pub.shtml Patch, Vendor Advisory
http://www.securityfocus.com/bid/2604 Patch, Vendor Advisory
https://exchange.xforce.ibmcloud.com/vulnerabilities/6379 exchange.xforce.ibmcloud.com