CVE-2011-3295: Input Validation

Published May 2, 2012
·
Updated

The NETIO and IPV4IO processes in Cisco IOS XR 3.8 through 4.1, as used in Cisco Carrier Routing System and other products, allow remote attackers to cause a denial of service (CPU consumption) via crafted network traffic, aka Bug ID CSCti59888.

Affected Software

14 affected components
Cisco IOS XR=4.0.4
Cisco IOS XR=3.8.4
Cisco IOS XR=3.9.0
Cisco IOS XR=3.9.2
Cisco IOS XR=3.9.1
Cisco IOS XR=3.8.1
Cisco IOS XR=3.8.2
Cisco IOS XR=4.0.2
Cisco IOS XR=4.1
Cisco IOS XR=3.8.3
Cisco IOS XR=4.0.1
Cisco IOS XR=4.0.0
Cisco IOS XR=4.0.3
Cisco IOS XR=3.8.0

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-2011-3295?

CVE-2011-3295 is classified as a denial of service vulnerability that can lead to significant CPU consumption.

2

How do I fix CVE-2011-3295?

To mitigate CVE-2011-3295, upgrade to a fixed version of Cisco IOS XR as specified in Cisco's security advisories.

3

Which Cisco products are affected by CVE-2011-3295?

CVE-2011-3295 affects various versions of Cisco IOS XR including versions from 3.8 through the 4.1 series.

4

Can CVE-2011-3295 be exploited remotely?

Yes, CVE-2011-3295 can be exploited remotely by attackers using crafted network traffic.

5

What are the symptoms of a CVE-2011-3295 attack?

The main symptom of an attack exploiting CVE-2011-3295 is increased CPU usage leading to potential service interruptions.

Contact

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