CVE-2011-4016: Input Validation
Published May 2, 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.
Affected Software
4 affected components
Cisco IOS=15.1
Cisco IOS=15.0
Cisco IOS=12.2
Cisco IOS=15.2
Event History
May 2, 2012
CVE Published
via MITRE·10:00 AM
Data Sourced
via MITRE·10:00 AM
Description
Frequently Asked Questions
1
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.
2
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.
3
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.
4
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.
5
Is there a workaround for CVE-2011-4016?
There are no specific workarounds for CVE-2011-4016; updating the firmware is recommended.