CVE-2011-2058: Input Validation
First published: Sat Oct 22 2011(Updated: )
The cat6000-dot1x component in Cisco IOS 12.2 before 12.2(33)SXI7 does not properly handle an external loop between a pair of dot1x enabled ports, which allows remote attackers to cause a denial of service (traffic storm) via unspecified vectors that trigger many unicast EAPoL Protocol Data Units (PDUs), aka Bug ID CSCtq36336.
Credit: ykramarz@cisco.com
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Cisco IOS | >=12.2<12.2\(33\)sxi7 |
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Reference Links
Frequently Asked Questions
What is the severity of CVE-2011-2058?
CVE-2011-2058 has a severity rating that indicates a significant risk of denial of service due to traffic storms caused by improper handling of external loops.
How do I fix CVE-2011-2058?
To mitigate CVE-2011-2058, upgrade your Cisco IOS to version 12.2(33)SXI7 or later.
Which devices are affected by CVE-2011-2058?
CVE-2011-2058 affects devices running Cisco IOS versions prior to 12.2(33)SXI7 that utilize the cat6000-dot1x component.
What is the main impact of CVE-2011-2058?
The main impact of CVE-2011-2058 is that it can cause a denial of service by creating a traffic storm due to excessive unicast EAPoL Protocol Data Units.
Can CVE-2011-2058 be exploited remotely?
Yes, CVE-2011-2058 can be exploited remotely by attackers leveraging the vulnerability to induce a denial of service.
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