CVE-2016-9225

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Summary

CVECVE-2016-9225
StatePUBLISHED
Assignercisco
Source PriorityCVE Program / NVD first with legacy fallback
Published2017-02-01 19:59:00 UTC
Updated2025-04-20 01:37:25 UTC
DescriptionA 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.

Risk And Classification

Primary CVSS: v3.0 8.6 HIGH from [email protected]

CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H

Problem Types: CWE-399 | CWE-399 CWE-399

VersionSourceTypeScoreSeverityVector
3.0[email protected]Primary8.6HIGHCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H
2.0[email protected]Primary7.8AV:N/AC:L/Au:N/C:N/I:N/A:C

CVSS v3.0 Breakdown

Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Changed
Confidentiality
None
Integrity
None
Availability
High

CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H

CVSS v2.0 Breakdown

Access Vector
Network
Access Complexity
Low
Authentication
None
Confidentiality
None
Integrity
None
Availability
Complete

AV:N/AC:L/Au:N/C:N/I:N/A:C

NVD Known Affected Configurations (CPE 2.3)

TypeVendorProductVersionUpdateEditionLanguage
Operating System Cisco Asa Cx Context-aware Security Software 9.0.1 All All All
Operating System Cisco Asa Cx Context-aware Security Software 9.0.1-40 All All All
Operating System Cisco Asa Cx Context-aware Security Software 9.0.2 All All All
Operating System Cisco Asa Cx Context-aware Security Software 9.0.2-68 All All All
Operating System Cisco Asa Cx Context-aware Security Software 9.0_base All All All
Operating System Cisco Asa Cx Context-aware Security Software 9.1.2-29 All All All
Operating System Cisco Asa Cx Context-aware Security Software 9.1.2-42 All All All
Operating System Cisco Asa Cx Context-aware Security Software 9.1.3-10 All All All
Operating System Cisco Asa Cx Context-aware Security Software 9.1.3-13 All All All
Operating System Cisco Asa Cx Context-aware Security Software 9.1.3-8 All All All
Operating System Cisco Asa Cx Context-aware Security Software 9.2.1-1 All All All
Operating System Cisco Asa Cx Context-aware Security Software 9.2.2-1 All All All
Operating System Cisco Asa Cx Context-aware Security Software 9.3.1-1 All All All
Operating System Cisco Asa Cx Context-aware Security Software 9.3.2-1 All All All
Operating System Cisco Asa Cx Context-aware Security Software 9.3.3.1-13 All All All
Operating System Cisco Asa Cx Context-aware Security Software 9.3.4-1 All All All
Operating System Cisco Asa Cx Context-aware Security Software 9.3.4-2 All All All
Operating System Cisco Asa Cx Context-aware Security Software 9.3.4-3 All All All
Operating System Cisco Asa Cx Context-aware Security Software 9.3.4-4 All All All
Operating System Cisco Asa Cx Context-aware Security Software 9.3.4-5 All All All
Operating System Cisco Asa Cx Context-aware Security Software 9.3.4-6 All All All
Operating System Cisco Asa Cx Context-aware Security Software 9.3.4.1.11 All All All
Operating System Cisco Asa Cx Context-aware Security Software 9.3\(1.1.112\) All All All
Operating System Cisco Asa Cx Context-aware Security Software 9.3_base All All All

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Na All Versions Of The ASA CX Context-Aware Security Module affected all versions of the ASA CX Context-Aware Security module Not specified

References

ReferenceSourceLinkTags
Cisco Adaptive Security Appliance CX Context-Aware Security Denial of Service Vulnerability af854a3a-2127-422b-91ae-364da2661108 www.securityfocus.com Third Party Advisory, VDB Entry
Cisco ASA CX Context-Aware Security Module IP Fragment Processing Flaw Lets Remote Users Consume Excessive Memory Resources - SecurityTracker af854a3a-2127-422b-91ae-364da2661108 www.securitytracker.com Third Party Advisory, VDB Entry
Cisco Adaptive Security Appliance CX Context-Aware Security Denial of Service Vulnerability af854a3a-2127-422b-91ae-364da2661108 tools.cisco.com Vendor Advisory
CVE Program record CVE.ORG www.cve.org canonical
NVD vulnerability detail NVD nvd.nist.gov canonical, analysis

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