Strix
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CVE-2016-9225

UnknownEPSS 2.66%

Last modified

CVE-2016-9225 is a vulnerability of currently unknown severity. 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. EPSS estimates a 2.66% chance of exploitation in the next 30 days.

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.

Metrics

EPSS Probability
2.66%

83.7th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

VendorProductVersions
CiscoAsa Cx Context-Aware Security Software9.0.1
CiscoAsa Cx Context-Aware Security Software9.0.1-40
CiscoAsa Cx Context-Aware Security Software9.0.2
CiscoAsa Cx Context-Aware Security Software9.0.2-68
CiscoAsa Cx Context-Aware Security Software9.0_base
CiscoAsa Cx Context-Aware Security Software9.1.2-29
CiscoAsa Cx Context-Aware Security Software9.1.2-42
CiscoAsa Cx Context-Aware Security Software9.1.3-8
CiscoAsa Cx Context-Aware Security Software9.1.3-10
CiscoAsa Cx Context-Aware Security Software9.1.3-13
CiscoAsa Cx Context-Aware Security Software9.2.1-1
CiscoAsa Cx Context-Aware Security Software9.2.2-1
CiscoAsa Cx Context-Aware Security Software9.3\(1.1.112\)
CiscoAsa Cx Context-Aware Security Software9.3.1-1
CiscoAsa Cx Context-Aware Security Software9.3.2-1
CiscoAsa Cx Context-Aware Security Software9.3.3.1-13
CiscoAsa Cx Context-Aware Security Software9.3.4-1
CiscoAsa Cx Context-Aware Security Software9.3.4-2
CiscoAsa Cx Context-Aware Security Software9.3.4-3
CiscoAsa Cx Context-Aware Security Software9.3.4-4
CiscoAsa Cx Context-Aware Security Software9.3.4-5
CiscoAsa Cx Context-Aware Security Software9.3.4-6
CiscoAsa Cx Context-Aware Security Software9.3.4.1.11
CiscoAsa Cx Context-Aware Security Software9.3_base

References

Timeline

Published
Last Modified
Status
Modified

Frequently Asked Questions

What is CVE-2016-9225?
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.
How severe is CVE-2016-9225?
Severity scoring for CVE-2016-9225 is pending analysis. The EPSS model estimates a 2.66% probability of exploitation in the next 30 days.
How do I fix CVE-2016-9225?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2016-9225?

Run a free Strix scan to check your systems for this vulnerability.

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Source: NVD / NIST