Protect yourself against future threats.
-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA1
===========================================================================
AUSCERT External Security Bulletin Redistribution
ESB-2014.0618
Cisco IOS XE Software Malformed L2TP Packet Vulnerability
30 April 2014
===========================================================================
AusCERT Security Bulletin Summary
---------------------------------
Product: Cisco IOS XE
Publisher: Cisco Systems
Operating System: Cisco
Impact/Access: Denial of Service -- Existing Account
Resolution: Patch/Upgrade
CVE Names: CVE-2014-2183
Original Bulletin:
http://tools.cisco.com/security/center/content/CiscoSecurityNotice/CVE-2014-2183
- --------------------------BEGIN INCLUDED TEXT--------------------
Cisco Security Notice
Cisco IOS XE Software Malformed L2TP Packet Vulnerability
http://tools.cisco.com/security/center/content/CiscoSecurityNotice/CVE-2014-2183
CVE ID: CVE-2014-2183
Release Date: 2014 April 28 14:39 UTC (GMT)
Last Updated: 2014 April 28 16:44 UTC (GMT)
Related Documents:
Summary
A vulnerability in the Layer 2 Tunneling Protocol (L2TP) module of Cisco IOS
XE on Cisco ASR 1000 Series Routers could allow an authenticated, remote
attacker to cause a reload of the processing ESP card.
The vulnerability occurs during the processing of a malformed L2TP packet. An
attacker could exploit this vulnerability by sending malformed L2TP packets
over an established L2TP session. An exploit could allow the attacker to cause
a reload of the affected ESP card.
Affected Products
Product More Information CVSS
Cisco IOS XE Software CSCun09973 6.3/5.2
What Is a Cisco Security Notice?
The Cisco Product Security Incident Response Team (PSIRT) publishes Cisco
Security Notices to inform customers of low- to mid-level severity security
issues involving Cisco products.
Customers who wish to upgrade to a software version that includes fixes for
these issues should contact their normal support channels. Free software
updates will not be provided for issues that are disclosed through a Cisco
Security Notice.
For additional information about Cisco PSIRT publications, see the Cisco
Security Vulnerability Policy at
http://www.cisco.com/web/about/security/psirt/security_vulnerability_policy.html
Customers Using Third-Party Support Organizations
Customers may have Cisco products that are provided or maintained through
prior or existing agreements with third-party support organizations, such as
Cisco Partners, authorized resellers, or service providers. For these
products, customers should consult their service providers or support
organizations to ensure that any applied workaround or fix is the most
appropriate in the intended network before it is deployed.
Disclaimer
THIS DOCUMENT IS PROVIDED ON AN "AS IS" BASIS AND DOES NOT IMPLY ANY KIND OF
GUARANTEE OR WARRANTY, INCLUDING THE WARRANTIES OF MERCHANTABILITY OR FITNESS
FOR A PARTICULAR USE. YOUR USE OF THE INFORMATION ON THE DOCUMENT OR MATERIALS
LINKED FROM THE DOCUMENT IS AT YOUR OWN RISK. CISCO RESERVES THE RIGHT TO
CHANGE OR UPDATE THIS DOCUMENT AT ANY TIME.
A stand-alone copy or paraphrase of the text of this document that omits the
distribution URL is an uncontrolled copy, and may lack important information
or contain factual errors.
- --------------------------END INCLUDED TEXT--------------------
You have received this e-mail bulletin as a result of your organisation's
registration with AusCERT. The mailing list you are subscribed to is
maintained within your organisation, so if you do not wish to continue
receiving these bulletins you should contact your local IT manager. If
you do not know who that is, please send an email to auscert@auscert.org.au
and we will forward your request to the appropriate person.
NOTE: Third Party Rights
This security bulletin is provided as a service to AusCERT's members. As
AusCERT did not write the document quoted above, AusCERT has had no control
over its content. The decision to follow or act on information or advice
contained in this security bulletin is the responsibility of each user or
organisation, and should be considered in accordance with your organisation's
site policies and procedures. AusCERT takes no responsibility for consequences
which may arise from following or acting on information or advice contained in
this security bulletin.
NOTE: This is only the original release of the security bulletin. It may
not be updated when updates to the original are made. If downloading at
a later date, it is recommended that the bulletin is retrieved directly
from the author's website to ensure that the information is still current.
Contact information for the authors of the original document is included
in the Security Bulletin above. If you have any questions or need further
information, please contact them directly.
Previous advisories and external security bulletins can be retrieved from:
http://www.auscert.org.au/render.html?cid=1980
===========================================================================
Australian Computer Emergency Response Team
The University of Queensland
Brisbane
Qld 4072
Internet Email: auscert@auscert.org.au
Facsimile: (07) 3365 7031
Telephone: (07) 3365 4417 (International: +61 7 3365 4417)
AusCERT personnel answer during Queensland business hours
which are GMT+10:00 (AEST).
On call after hours for member emergencies only.
===========================================================================
-----BEGIN PGP SIGNATURE-----
Comment: http://www.auscert.org.au/render.html?it=1967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=c0fq
-----END PGP SIGNATURE-----