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AUSCERT External Security Bulletin Redistribution
ESB-2013.1436
Cisco IOS Software OSPF Opaque LSA Denial of Service Vulnerability
11 October 2013
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AusCERT Security Bulletin Summary
---------------------------------
Product: Cisco IOS Softwware
Cisco IOS XE Software
Publisher: Cisco Systems
Operating System: Cisco
Impact/Access: Denial of Service -- Remote/Unauthenticated
Resolution: Patch/Upgrade
CVE Names: CVE-2013-5527
Original Bulletin:
http://tools.cisco.com/security/center/content/CiscoSecurityNotice/CVE-2013-5527
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Cisco Security Notice
Cisco IOS Software OSPF Opaque LSA Denial of Service Vulnerability
http://tools.cisco.com/security/center/content/CiscoSecurityNotice/CVE-2013-5527
CVE ID: CVE-2013-5527
Release Date: 2013 October 9 12:28 UTC (GMT)
Last Updated: 2013 October 10 18:06 UTC (GMT)
Related Documents:
Summary
A vulnerability in the OSPF implementation of Cisco IOS Software and Cisco IOS
XE Software could allow an unauthenticated, adjacent attacker to cause a
reload of the affected device.
The vulnerability is due to improper parsing of certain options in OSPF
link-state advertisement (LSA) type 11 packets. An attacker could exploit this
vulnerability by sending LSA type 11 OSPF packets with unusual options set. An
exploit could allow the attacker to cause a reload of the affected device.
Affected Products
Product More Information CVSS
IOS CSCui21030 5.7/4.7
Cisco IOS XE Software CSCui21030 5.7/4.7
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/en/US/products/products_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.
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