CVE-2011-2057
High
Description
The cat6000-dot1x component in Cisco IOS 12.2 before 12.2(33)SXI7 does not properly handle (1) a loop between a dot1x enabled port and an open-authentication dot1x enabled port and (2) a loop between a dot1x enabled port and a non-dot1x port, which allows remote attackers to cause a denial of service (traffic storm) via unspecified vectors that trigger many Spanning Tree Protocol (STP) Bridge Protocol Data Unit (BPDU) frames, aka Bug ID CSCtq36327.
SeverityHigh
CVSS7.5
Exploit probability—
Product
Cisco Ios
PublishedOct 22, 2011
First seenOct 22, 2011
How to fix
Update
- cisco ios12.2\(33\)sxi7 or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| cisco ios | 12.2 ≤ v < 12.2\(33\)sxi7 | 12.2\(33\)sxi7 |
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