7.8 - cisco-sa-20180328-opendns-dos

A vulnerability in the Cisco Umbrella Integration feature of Cisco IOS XE Software could allow an unauthenticated, remote attacker to cause a denial of service (DoS) condition.

The vulnerability is due to a logic error that exists when handling a malformed incoming packet, leading to access to an internal data structure after it has been freed. An attacker could exploit this vulnerability by sending crafted, malformed IP packets to an affected device. A successful exploit could allow the attacker to cause an affected device to reload, resulting in a DoS condition.

Cisco has released software updates that address this vulnerability. There are no workarounds that address this vulnerability.

This advisory is available at the following link: https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20180328-opendns-dos ["https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20180328-opendns-dos"]

This advisory is part of the March 28, 2018, release of the Cisco IOS and IOS XE Software Security Advisory Bundled Publication, which includes 20 Cisco Security Advisories that describe 22 vulnerabilities. For a complete list of the advisories and links to them, see Cisco Event Response: March 2018 Semiannual Cisco IOS and IOS XE Software Security Advisory Bundled Publication ["https://tools.cisco.com/security/center/viewErp.x?alertId=ERP-66682"].

BEGIN PGP SIGNATURE

iQJ5BAEBAgBjBQJau71MXBxDaXNjbyBQcm9kdWN0IFNlY3VyaXR5IEluY2lkZW50 IFJlc3BvbnNlIFRlYW0gKENpc2NvIFBTSVJUIGtleSAyMDE4LTIwMTkpIDxwc2ly dEBjaXNjby5jb20+AAoJEJa12PPJBfcz1WUP/2R3tKJAdA9j9DUfajZIq7K+MSVB quU7wW9A2HSIrryicsWUApTujQPfqauN0J9ww+nXejZLA87i6fBwGgNqIzhY7L8U H26W4Uxywn76Aw5V4nM/NyAwrMgkQPBrfO8GSSv2BMY2Uuk8p1MPIiqrxn8BuFHX TL8Ae1IZ2ZwQJIooBbkoLmQC/k52NuXGv6tvAH9NXvGc2DnkYGLu1io4c05FOIwN qn+8Q+I80HYaghtWbIg3Prx8y3pNENmeIAs82rJAcllZZRqPmbVOtCoKuE9IIUuk y6JVuJPoGqffYd18qJ6Hjk4r/5Cj57VlbA3yOenCeViKhm1vklsMG2U+3gfaEgqW r0tEln1SbPxX47iMO3Rqnngnl7hYwvl2xWJW31ACGMq1e7IV1IZItV4wnScbMXqF wDgf8fqOSauLA1TsEKOyWpyXl8BwXVsGlT+F1BawalABOqO8c1s+vvGcN8xUITNM 7EjUzWGh9bT0cQ/aohpovRIRAB0zdUQtzrlLlxbrxI6Kivdntno60O+0bEDEyq6v wogOAqBLiUnfsLvt9TqlQTkPFnkHtVHaqCTJu5O/EAIoaBGXeBBPtx7nFtuo6XG9 YM7U4aay3UNE8hv7fY626gtvgZ8MDYuRpBjOv5AkJhM8MxsDeAUw6vyY1O1+c/Av ALwqlnF91pOgr5rP =la4n END PGP SIGNATURE

_______________________________________________ cust-security-announce mailing list cust-security-announce@cisco.com To unsubscribe, send the command "unsubscribe" in the subject of your message to cust-security-announce-leave@cisco.com