CVE-2016-9225

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.

Category

8.6
CVSS
Severity: High
CVSS 3.0 •
CVSS 2.0 •
EPSS 1.38% Top 25%
Vendor Advisory cisco.com
Affected: n/a all versions of the ASA CX Context-Aware Security module
Published at:
Updated at:

References

Link Tags
http://www.securityfocus.com/bid/95788 vdb entry third party advisory
https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20170125-cas vendor advisory
http://www.securitytracker.com/id/1037696 vdb entry third party advisory

Frequently Asked Questions

What is the severity of CVE-2016-9225?
CVE-2016-9225 has been scored as a high severity vulnerability.
How to fix CVE-2016-9225?
To fix CVE-2016-9225, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2016-9225 being actively exploited in the wild?
It is possible that CVE-2016-9225 is being exploited or will be exploited in a near future based on public information. According to its EPSS score, there is a ~1% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2016-9225?
CVE-2016-9225 affects n/a all versions of the ASA CX Context-Aware Security module.
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