What is the severity of CVE-2011-4016?

CVE-2011-4016 has been classified as a denial of service vulnerability that can cause device crashes.

How do I fix CVE-2011-4016?

To fix CVE-2011-4016, update your Cisco IOS to a version that is not affected by this vulnerability.

Which versions of Cisco IOS are affected by CVE-2011-4016?

CVE-2011-4016 affects Cisco IOS versions 12.2, 15.0, 15.1, and 15.2.

What type of attack does CVE-2011-4016 allow?

CVE-2011-4016 allows remote attackers to execute denial of service attacks through crafted network traffic.

Is there a workaround for CVE-2011-4016?

There are no specific workarounds for CVE-2011-4016; updating the firmware is recommended.

Vulnerability/
CVE-2011-4016

medium

5.4

CWE

20 284

2/5/2012

6/8/2024

CVE-2011-4016: Input Validation

First published: Wed May 02 2012(Updated: )

The PPP implementation in Cisco IOS 12.2 and 15.0 through 15.2, when Point-to-Point Termination and Aggregation (PTA) and L2TP are used, allows remote attackers to cause a denial of service (device crash) via crafted network traffic, aka Bug ID CSCtf71673.

Credit: ykramarz@cisco.com

Affected Software	Affected Version	How to fix
Cisco IOS	=15.1
Cisco IOS	=15.0
Cisco IOS	=12.2
Cisco IOS	=15.2

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Reference Links

Frequently Asked Questions

What is the severity of CVE-2011-4016?
CVE-2011-4016 has been classified as a denial of service vulnerability that can cause device crashes.
How do I fix CVE-2011-4016?
To fix CVE-2011-4016, update your Cisco IOS to a version that is not affected by this vulnerability.
Which versions of Cisco IOS are affected by CVE-2011-4016?
CVE-2011-4016 affects Cisco IOS versions 12.2, 15.0, 15.1, and 15.2.
What type of attack does CVE-2011-4016 allow?
CVE-2011-4016 allows remote attackers to execute denial of service attacks through crafted network traffic.
Is there a workaround for CVE-2011-4016?
There are no specific workarounds for CVE-2011-4016; updating the firmware is recommended.

collector/nvd-historical
collector/nvd-index
agent/references
agent/type
agent/softwarecombine
collector/mitre-cve
source/MITRE
agent/weakness
agent/severity
agent/author
agent/last-modified-date
agent/first-publish-date
agent/tags
agent/description
agent/event
agent/source
vendor/cisco
canonical/cisco ios
version/cisco ios/15.1
version/cisco ios/15.0
version/cisco ios/12.2
version/cisco ios/15.2

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Frequently Asked Questions

What is the severity of CVE-2011-4016?
CVE-2011-4016 has been classified as a denial of service vulnerability that can cause device crashes.
How do I fix CVE-2011-4016?
To fix CVE-2011-4016, update your Cisco IOS to a version that is not affected by this vulnerability.
Which versions of Cisco IOS are affected by CVE-2011-4016?
CVE-2011-4016 affects Cisco IOS versions 12.2, 15.0, 15.1, and 15.2.
What type of attack does CVE-2011-4016 allow?
CVE-2011-4016 allows remote attackers to execute denial of service attacks through crafted network traffic.
Is there a workaround for CVE-2011-4016?
There are no specific workarounds for CVE-2011-4016; updating the firmware is recommended.