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Cisco Security Notice

AnyConnect SSL VPN Memory Exhaustion Denial of Service Vulnerability

http://tools.cisco.com/security/center/content/CiscoSecurityNotice/CVE-2013-3415
CVE ID: CVE-2013-3415
Release Date: 2013 December 13 05:29  UTC (GMT)
Last Updated: 2013 December 13 05:29  UTC (GMT)

Related Resources:

View related Security AdvisoryView related Alert


Summary

A vulnerability in how Cisco ASA Software handles AnyConnect SSL VPN client connections could allow an unauthenticated, remote attacker to exhaust available memory which could cause the affected system to become unresponsive and transit traffic to be dropped.

The vulnerability is due to improperly clearing unused memory blocks after an AnyConnect SSL VPN client disconnects. An attacker could exploit this vulnerability by sending traffic to the IP address of the disconnected client.

Affected Products

ProductMore InformationCVSS
Cisco Adaptive Security Appliance (ASA) SoftwareCSCtt367377.8/6.4

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

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