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-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 =========================================================================== AUSCERT External Security Bulletin Redistribution ESB-2013.1121 Cisco IOS XR Internet Control Message Protocol Denial of Service Vulnerability 15 August 2013 =========================================================================== AusCERT Security Bulletin Summary --------------------------------- Product: Cisco IOS XR Publisher: Cisco Systems Operating System: Cisco Impact/Access: Denial of Service -- Existing Account Resolution: Patch/Upgrade CVE Names: CVE-2013-3464 Original Bulletin: http://tools.cisco.com/security/center/content/CiscoSecurityNotice/CVE-2013-3464 - --------------------------BEGIN INCLUDED TEXT-------------------- Cisco Security Notice Cisco IOS XR Internet Control Message Protocol Denial of Service Vulnerability http://tools.cisco.com/security/center/content/CiscoSecurityNotice/CVE-2013-3464 CVE ID: CVE-2013-3464 Release Date: 2013 August 12 20:11 UTC (GMT) Last Updated: 2013 August 12 20:11 UTC (GMT) Related Documents: Summary Cisco IOS XR Software is affected by a denial of service (DoS) vulnerability that could allow an authenticated, local attacker to trigger a reload of the affected device by locally generating certain Internet Control Message Protocol (ICMP) messages. The vulnerability is due to a combination of Silicon Packet Processor (SPP) buffer corruption and a mutex issue when an extended ping with timeout=0 and a large packet size is terminated with Control-C. An attacker could exploit this vulnerability by sending large ICMP packets from an affected device. Affected Products Product More Information CVSS Cisco IOS XR Software CSCui60347 4.6/4.6 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. - --------------------------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 iQIVAwUBUgwv7BLndAQH1ShLAQIrjhAAuqpCh3TjcyN96DB6KkyiYRKYCggshuXO up6d43FgYph/SeiM/zdJ3GJvfsoIoZMNUeiQqukG7gVZN8CHEGzj+5MrgW6jpqGN LJzJOuNT4PcY1Kfj29ZmZOVGamk9kQOTmtwkD+A47nNm0rC4JGUNaQ1VMvcng+w9 JOltRB3FGIR4onSB5sRPDCj8aHeIm6bzkb4Zbz/QbT4TzqoQXKiTeXsiJkt2XD4y 8SPLmMymJi2L/g8/fdmwZO4ciHHNRtdakrh+SMaeg/HxEgVxkdMAvACO+FlWyrNL JjQq9ZYQjyfZH5ssdf9yHO36+TWSgINyJAmUrMS0BsIrkcuP1J72X7a+4MOO7vhw 9OeoqlPz3BeQsWYq0DvohtLCr0vcpDfNrDv2txPts9B4vg9xbVR/Us2q4rEltO8W 8HISw9bFpG5CJ67zbyw6YXHCcPsgyU0Jz+0AyLdBc1qbX1FP8Y2+ghrYpj7Zu38Q w6M62+m8PNt9GLdhCNFZ8Swi5EwmMBpW3mv0vCSe62dGqC8IRCzXSzVGwUFId0/W Syb5SA+Ii+MDKbVc9Xnc76SQ0GQtM+48U5eVhO1oNaaDKuxclTnCZOK2NnhRHJBq Eb+ynQwTTNw07soiBMM3w4t2OyWjBkYhCWPIrP5HiwddTPZsVvx5svMCrKwpEWFb 4MU1O4ZsHLI= =evi/ -----END PGP SIGNATURE-----