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-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 =========================================================================== AUSCERT External Security Bulletin Redistribution ESB-2014.0920 Cisco Wireless LAN Controller Cisco Discovery Protocol Denial of Service Vulnerability 10 June 2014 =========================================================================== AusCERT Security Bulletin Summary --------------------------------- Product: Cisco Wireless LAN Controller Publisher: Cisco Systems Operating System: Cisco Impact/Access: Denial of Service -- Remote/Unauthenticated Resolution: Patch/Upgrade CVE Names: CVE-2014-3291 Original Bulletin: http://tools.cisco.com/security/center/content/CiscoSecurityNotice/CVE-2014-3291 - --------------------------BEGIN INCLUDED TEXT-------------------- Cisco Security Notice Cisco Wireless LAN Controller Cisco Discovery Protocol Denial of Service Vulnerability http://tools.cisco.com/security/center/content/CiscoSecurityNotice/CVE-2014-3291 CVE ID: CVE-2014-3291 Release Date: 2014 June 6 17:54 UTC (GMT) Last Updated: 2014 June 9 20:43 UTC (GMT) Related Documents: Summary A vulnerability in the Cisco Discovery Protocol subsystem of Cisco Wireless LAN Controllers could allow an unauthenticated, adjacent attacker to cause a denial of service (DoS) condition. The vulnerability is due to a failure to properly check for certain NULL values present in a Cisco Discovery Protocol packet. An attacker could exploit this vulnerability by submitting crafted Cisco Discovery Protocol requests to an affected device. The attacker would then need to convince a user to perform a Simple Network Management Protocol (SNMP) poll of the affected MIB. An attacker that can convince a user to perform an SNMP poll of the affected MIB could trigger a NULL pointer error that results in a restart of the device. Affected Products Product More Information CVSS Cisco Wireless LAN Controller (WLC) CSCuo12321 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/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. 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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 iQIVAwUBU5aRVhLndAQH1ShLAQLYcRAAneMwRl5nImMTrYbo2xifUpyULjZ58oGR 6edYncc7UtosdkL8D22/iR1YJC6IebJdmPjLdQ1yMxXQ9tubf6E20dAWLzr3ldcm NAtUfLEpAOSzNvZ7sjoDDYfe/XDsUyQ3eKsGS7JQAn9cmpwaE+AqqOQhpFUOQ/Yw VXQmSrpopbxSSG1MUsSR/0grP94K1QMAOLYJz/I2WbXVqVxPnXF0QEOqqXeRiFtJ 55DEeslG8Nyv9QtdK37uEggloyzvDvTyAfUlw08eRMj6SMrHNYZHYiOwjocULHf1 gn46oqzRmfJ/Bb9SMo4kgh6+G6sFYpCx2NYdlJkroLWbQYJ+6+iFuOLBECaOpJtT UDINjf5+xEfztHTZYBuxK4TLLzvMNmWFklkF4nmf7TxXPm6z9RsANsoC6nF1M/K4 +pL0ZoVpe2+z/n48k8WQuRbZVwFJpJlPGSU3j7uIOvC3K4qAkz+VIBTmbsAFOUZx 1uDGttdCaWJE6RV44UA4Ja1OfbiprqvIYqJErWVLIUd3wpti59jdETFbAMZCSE7S koGmJM9aSjUFgrOFKPMhh9t6wdkpHKfI3iCn+OsaHnpPLuL5+m5KJz/cYfp+n3LM amBDcVivYMxjN7Ks5gsM3izoo7hfcFcX/2dVysH7fpwIOD+orFzgei16ifhR76OS Zn/KzjkJBvo= =fjzv -----END PGP SIGNATURE-----