CVE-2011-1640
First published: Sat Oct 22 2011(Updated: )
The ethernet-lldp component in Cisco IOS 12.2 before 12.2(33)SXJ1 does not properly support a large number of LLDP Management Address (MA) TLVs, which allows remote attackers to cause a denial of service (device crash) via crafted LLDPDUs, aka Bug ID CSCtj22354.
Credit: ykramarz@cisco.com
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Cisco IOS | >=12.2<12.2\(33\)sxj1 |
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Reference Links
Frequently Asked Questions
What is the severity of CVE-2011-1640?
CVE-2011-1640 has been classified as a denial of service vulnerability that can crash devices.
How do I fix CVE-2011-1640?
To resolve CVE-2011-1640, upgrade to Cisco IOS version 12.2(33)SXJ1 or later.
What component is affected by CVE-2011-1640?
The ethernet-lldp component in Cisco IOS is affected by CVE-2011-1640.
How does CVE-2011-1640 allow an attack?
CVE-2011-1640 allows remote attackers to send crafted LLDPDUs that can lead to a device crash.
Which versions of Cisco IOS are vulnerable to CVE-2011-1640?
Cisco IOS versions prior to 12.2(33)SXJ1 are vulnerable to CVE-2011-1640.
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