What is the severity of CVE-2011-3279?

CVE-2011-3279 has been classified as a severity of high, as it can lead to a denial of service by device reload.

How do I fix CVE-2011-3279?

To mitigate CVE-2011-3279, upgrade to a version of Cisco IOS or IOS XE that is not vulnerable, specifically versions above 15.1 or 12.4.

What devices are affected by CVE-2011-3279?

CVE-2011-3279 affects Cisco IOS versions 12.1 to 12.4 and 15.0 to 15.1, as well as certain 3.1.xSG versions of IOS XE.

Can CVE-2011-3279 be exploited remotely?

Yes, CVE-2011-3279 can be exploited remotely by sending a malformed SIP packet to UDP port 5060.

What impact does CVE-2011-3279 have on my network?

Exploitation of CVE-2011-3279 can cause a denial of service, resulting in device reload and potential network downtime.

Vulnerability/
CVE-2011-3279

high

7.8

CWE

3/10/2011

6/8/2024

CVE-2011-3279

First published: Mon Oct 03 2011(Updated: )

The provider-edge MPLS NAT implementation in Cisco IOS 12.1 through 12.4 and 15.0 through 15.1, and IOS XE 3.1.xSG, allows remote attackers to cause a denial of service (device reload) via a malformed SIP packet to UDP port 5060, aka Bug ID CSCti98219.

Credit: ykramarz@cisco.com

Affected Software	Affected Version	How to fix
Cisco IOS XE Software	=3.1.0sg
Cisco IOS XE Software	=3.1.1sg
Cisco IOS	>=15.0<=15.1
Cisco IOS	>=12.1<=12.4

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Reference Links

Frequently Asked Questions

What is the severity of CVE-2011-3279?
CVE-2011-3279 has been classified as a severity of high, as it can lead to a denial of service by device reload.
How do I fix CVE-2011-3279?
To mitigate CVE-2011-3279, upgrade to a version of Cisco IOS or IOS XE that is not vulnerable, specifically versions above 15.1 or 12.4.
What devices are affected by CVE-2011-3279?
CVE-2011-3279 affects Cisco IOS versions 12.1 to 12.4 and 15.0 to 15.1, as well as certain 3.1.xSG versions of IOS XE.
Can CVE-2011-3279 be exploited remotely?
Yes, CVE-2011-3279 can be exploited remotely by sending a malformed SIP packet to UDP port 5060.
What impact does CVE-2011-3279 have on my network?
Exploitation of CVE-2011-3279 can cause a denial of service, resulting in device reload and potential network downtime.

agent/type
collector/mitre-cve
source/MITRE
agent/author
agent/severity
agent/references
agent/last-modified-date
agent/weakness
agent/description
agent/first-publish-date
agent/event
agent/source
agent/softwarecombine
agent/tags
collector/nvd-index
agent/software-canonical-lookup-request
collector/nvd-historical
vendor/cisco
canonical/cisco ios xe
version/cisco ios xe/3.1.0sg
version/cisco ios xe/3.1.1sg
canonical/cisco ios
version/cisco ios/12.1
version/cisco ios/12.4
version/cisco ios/15.0
version/cisco ios/15.1

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