Protect yourself against future threats.
-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA1
===========================================================================
AUSCERT External Security Bulletin Redistribution
ESB-2014.1159
Cisco ASA Filter and Inspect Overlap Denial of Service Vulnerability
14 July 2014
===========================================================================
AusCERT Security Bulletin Summary
---------------------------------
Product: Cisco Adaptive Security Appliance
Publisher: Cisco Systems
Operating System: Cisco
Impact/Access: Denial of Service -- Remote/Unauthenticated
Resolution: Patch/Upgrade
CVE Names: CVE-2013-5567
Original Bulletin:
http://tools.cisco.com/security/center/content/CiscoSecurityNotice/CVE-2013-5567
- --------------------------BEGIN INCLUDED TEXT--------------------
Cisco Security Notice
Cisco ASA Filter and Inspect Overlap Denial of Service Vulnerability
http://tools.cisco.com/security/center/content/CiscoSecurityNotice/CVE-2013-5567
CVE ID: CVE-2013-5567
Release Date: 2014 July 10 20:07 UTC (GMT)
Last Updated: 2014 July 11 20:24 UTC (GMT)
Related Documents:
Summary
A vulnerability in the inspection and filter features of the Cisco Adaptive
Security Appliance (ASA) could allow an unauthenticated, remote attacker to
cause the affected system to reload.
The vulnerability is due to an internal traffic loop condition that can be
triggered when a received packet is matched for both filtering and inspection
due to a configuration with overlapping traffic matching criteria
(configuration is not supported). An attacker could exploit this vulnerability
by sending a packet that would be matched by the incorrect configuration. An
exploit could allow the attacker to trigger an affected system to crash,
resulting in a denial of service (DoS) condition.
Affected Products
Product More Information CVSS
Cisco Adaptive Security Appliance (ASA) Software CSCui45606 5.4/4.5
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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=H7YK
-----END PGP SIGNATURE-----