CVE-2016-9225

High

Description

A vulnerability in the data plane IP fragment handler of the Cisco Adaptive Security Appliance (ASA) CX Context-Aware Security module could allow an unauthenticated, remote attacker to cause the CX module to be unable to process further traffic, resulting in a denial of service (DoS) condition. The vulnerability is due to improper handling of IP fragments. An attacker could exploit this vulnerability by sending crafted fragmented IP traffic across the CX module. An exploit could allow the attacker to exhaust free packet buffers in shared memory (SHM), causing the CX module to be unable to process further traffic, resulting in a DoS condition. This vulnerability affects all versions of the ASA CX Context-Aware Security module. Cisco has not released and will not release software updates that address this vulnerability. There are no workarounds that address this vulnerability. Cisco Bug IDs: CSCva62946.

SeverityHigh
CVSS8.6
Exploit probability—
ProductCisco Asa Cx Context-aware Security Software
PublishedFeb 1, 2017
First seenFeb 1, 2017
Weakness typeCWE-399CWE-399

How to fix

Sources list no fixed version or patch link for this vulnerability.

Affected products

ProductAffected versionsFixed in
cisco asa_cx_context-aware_security_software9.0.1, 9.0.1-40, 9.0.2, 9.0.2-68, 9.0_base, 9.1.2-29, 9.1.2-42, 9.1.3-8, 9.1.3-10, 9.1.3-13, 9.2.1-1, 9.2.2-1, 9.3\(1.1.112\), 9.3.1-1, 9.3.2-1, 9.3.3.1-13, 9.3.4-1, 9.3.4-2, 9.3.4-3, 9.3.4-4, 9.3.4-5, 9.3.4-6, 9.3.4.1.11, 9.3_base—

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