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-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 =========================================================================== AUSCERT External Security Bulletin Redistribution ESB-2014.1086 Cisco IOS XR Software Punt Policer Denial of Service Vulnerability 7 July 2014 =========================================================================== AusCERT Security Bulletin Summary --------------------------------- Product: Cisco IOS XR Publisher: Cisco Systems Operating System: Cisco Impact/Access: Denial of Service -- Remote/Unauthenticated Resolution: Patch/Upgrade CVE Names: CVE-2014-3308 Original Bulletin: http://tools.cisco.com/security/center/content/CiscoSecurityNotice/CVE-2014-3308 - --------------------------BEGIN INCLUDED TEXT-------------------- Cisco Security Notice Cisco IOS XR Software Punt Policer Denial of Service Vulnerability http://tools.cisco.com/security/center/content/CiscoSecurityNotice/CVE-2014-3308 CVE ID: CVE-2014-3308 Release Date: 2014 July 3 13:13 UTC (GMT) Last Updated: 2014 July 3 13:13 UTC (GMT) Summary A vulnerability in the implementation of the punt policer on Trident line cards in Cisco ASR 9000 Series routers could allow an unauthenticated, remote attacker to overload the CPU on the Trident line card or Route Processor (RP) and eventually cause a denial of service (DoS) condition for traffic in some queues. The vulnerability is due to a missing static punt policer for traffic that is destined to an affected device. An attacker could exploit this vulnerability by sending a large number of specific packets that are destined to an affected device. An exploit could allow the attacker to overload the CPU on the Trident line card or Route Processor (RP) and eventually cause a denial of service (DoS) condition for traffic in some queues. Affected Products Product More Information CVSS Cisco IOS XR Software CSCun83985 6.4/5.3 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. 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On call after hours for member emergencies only. =========================================================================== -----BEGIN PGP SIGNATURE----- Comment: http://www.auscert.org.au/render.html?it=1967 iQIVAwUBU7ncrBLndAQH1ShLAQJDaQ/+MibG68gzlXz06n7+u9JMUNuuapMy+FVQ 4PL0jtJ/+p8wWu6oeKdtC9VxWxv/clf0Vt38XSR2gcbdruflwCufr9rKSg6hNFJ7 mA0DRdE6M80Yetgc2idQdFd5G2StNQv8iz0GxE7pSVX1TeS+NxgChDTrjR4AP9/5 ztPMoxA5sVv8zS2kEnN3RWfMNZ6Dj6a/c4+ew+MSfCLEBqDnIMMSgjKmdZ8uj8Mu Vxpl7hNy/fWJdxhfezqiHbdjIHmZVG5+sMXuZHI6Aoaww6qB5MpbIioxepO/PgsV Fc8X6cwUc5CP9LlDbLiC1GUCXrjrZGqTEo/0Vfwh3dhC+0HlBcEoGDjGftMqglA8 g7Pw9K2gOTCm/fQO5a5r8Vj7FaSdQuzMMiBibxGBZhttsqD+npUiQR5o0WI6UOjB 4UG7d3mbHx+0kmkb5wGkKC9nZQpewmyw9Ttf/el0AnzZJWkAsGdy8ZSi+GAQ1SML 2LS8/kdt9RQnv/uhMv3eQQ+4tzVVcv2/VoowSErJ3mJoPWk2bqUS1TlDfEULNXpF Fa9VFad7PKx3PwvlI26Tcq1v7qsvGju5nX87x7LAODYAVIdIPuF0os4/qQ2l1XQJ ESEhhLGj4zD4O5fAk+9QP+cbzisjqVQzOhJ6iq+HTInha0hoYDgjtAzN45ff4UrS KDkEc/Zcsng= =Y8FN -----END PGP SIGNATURE-----