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-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 =========================================================================== AUSCERT External Security Bulletin Redistribution ESB-2014.1227 Cisco IOS XR Software NetFlow Processing Denial of Service Vulnerability 24 July 2014 =========================================================================== AusCERT Security Bulletin Summary --------------------------------- Product: Cisco IOS XR Publisher: Cisco Systems Operating System: Network Appliance Impact/Access: Denial of Service -- Remote/Unauthenticated Resolution: Patch/Upgrade CVE Names: CVE-2014-3322 Original Bulletin: http://tools.cisco.com/security/center/content/CiscoSecurityNotice/CVE-2014-3322 - --------------------------BEGIN INCLUDED TEXT-------------------- Cisco Security Notice Cisco IOS XR Software NetFlow Processing Denial of Service Vulnerability http://tools.cisco.com/security/center/content/CiscoSecurityNotice/CVE-2014-3322 CVE ID: CVE-2014-3322 Release Date: 2014 July 22 20:44 UTC (GMT) Last Updated: 2014 July 23 18:39 UTC (GMT) Related Documents: Summary A vulnerability in NetFlow processing in Cisco IOS XR Software for ASR 9000 Series Aggregation Services Routers could allow an unauthenticated, adjacent attacker to cause a lockup and eventual reload of a Network Processor (NP) chip and a line card processing traffic. The vulnerability is due to improper NetFlow sampling of malformed IP version 4 (IPv4) or IP version 6 (IPv6) packets. An attacker could exploit this vulnerability by sending a stream of malformed IPv4 or IPv6 packets to be processed through an affected device. An exploit could allow the attacker to cause a lockup and eventual reload of an NP chip and a line card, leading to a denial of service (DoS) condition. Affected Products Product More Information CVSS Cisco IOS XR Software CSCuo68417 6.1/5.0 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 iQIVAwUBU9BtMxLndAQH1ShLAQLR8hAAoGFxxdhDzkSJgqh7RAfNxa5gFXy3FuNz sEGwYuqwMbKPhMExUIABuwOGzzcEufn9sI5Rt5LlyAEG1CqJSBvnHcrhQBYLiVA/ O5OYmc3XrftkAeBGUc8cCjUalsF2vRuxZ/Vgs9s3XIULDTJxhBmSvGZJuY3mx/Cy GPj2ct49/eQq+Fe/cHz00XrsqBhQTMlIovAwk2H81H6EFM0nOFqxWxKwwzGn/4nx IAASwXwTrAI6ArGQvG52cnXTHaRQXe6CcadDiwWJbYZ3Y/pLNbQHogxTnepChfNV 9ldYEfXkjLdj9od4D2lylxqijv50BamJ9aRr3+ieMJ1fLGvXrOqpI0O7QAcsO2RA Ah6bx2Oqz07JjCIm76NUq+ltt4kOaPlpdAXWbHgqtbuo4nCNpRTUJ7ZWZRrXKnj5 X4KypHHdzEuG6QnjrJEqmyucuW2CKP4sKVmJIcAhvbkgCTuVkxwU2kwR3OrQjk+n C3g9ue++xQHDmZaThn8b72ilc/D2O9ikQ1AciuN2+nXuZvGQqcaY5GE9ZLZD3YYn zV1go3WaENUvUnqw8OuqCkplFEMY/S7pUZnTL+QL2GTW3WqkX362xQ5isokmb2zX fJLvzl8r9T3xLjm/9M5EdLBSSXpL3Gjo8CAIL+vlCVRReh3fQ+rs/ZKdpx6mQ96J CSiKy4DoVgo= =ixO1 -----END PGP SIGNATURE-----