CVE-2016-9225
First published: Wed Feb 01 2017(Updated: )
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.
Credit: ykramarz@cisco.com
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Cisco ASA CX Context-Aware Security | =9.0.1 | |
| Cisco ASA CX Context-Aware Security | =9.0.1-40 | |
| Cisco ASA CX Context-Aware Security | =9.0.2 | |
| Cisco ASA CX Context-Aware Security | =9.0.2-68 | |
| Cisco ASA CX Context-Aware Security | =9.0_base | |
| Cisco ASA CX Context-Aware Security | =9.1.2-29 | |
| Cisco ASA CX Context-Aware Security | =9.1.2-42 | |
| Cisco ASA CX Context-Aware Security | =9.1.3-8 | |
| Cisco ASA CX Context-Aware Security | =9.1.3-10 | |
| Cisco ASA CX Context-Aware Security | =9.1.3-13 | |
| Cisco ASA CX Context-Aware Security | =9.2.1-1 | |
| Cisco ASA CX Context-Aware Security | =9.2.2-1 | |
| Cisco ASA CX Context-Aware Security | =9.3\(1.1.112\) | |
| Cisco ASA CX Context-Aware Security | =9.3.1-1 | |
| Cisco ASA CX Context-Aware Security | =9.3.2-1 | |
| Cisco ASA CX Context-Aware Security | =9.3.3.1-13 | |
| Cisco ASA CX Context-Aware Security | =9.3.4-1 | |
| Cisco ASA CX Context-Aware Security | =9.3.4-2 | |
| Cisco ASA CX Context-Aware Security | =9.3.4-3 | |
| Cisco ASA CX Context-Aware Security | =9.3.4-4 | |
| Cisco ASA CX Context-Aware Security | =9.3.4-5 | |
| Cisco ASA CX Context-Aware Security | =9.3.4-6 | |
| Cisco ASA CX Context-Aware Security | =9.3.4.1.11 | |
| Cisco ASA CX Context-Aware Security | =9.3_base |
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Reference Links
Frequently Asked Questions
What is the severity of CVE-2016-9225?
CVE-2016-9225 has a severity rating of critical, as it can lead to a denial of service (DoS) condition.
How do I fix CVE-2016-9225?
To fix CVE-2016-9225, you should upgrade the Cisco ASA CX Context-Aware Security module to a patched version as recommended by Cisco.
What systems are affected by CVE-2016-9225?
CVE-2016-9225 affects various versions of the Cisco ASA CX Context-Aware Security software including 9.0.1, 9.0.2, and some 9.1.x and 9.2.x versions.
Can CVE-2016-9225 be exploited remotely?
Yes, CVE-2016-9225 can be exploited by an unauthenticated remote attacker.
What impact does CVE-2016-9225 have on the Cisco Adaptive Security Appliance?
CVE-2016-9225 can cause the Cisco Adaptive Security Appliance's CX module to stop processing traffic, resulting in a denial of service.
- agent/type
- agent/softwarecombine
- collector/mitre-cve
- source/MITRE
- agent/severity
- agent/weakness
- agent/references
- agent/author
- agent/last-modified-date
- agent/first-publish-date
- agent/description
- agent/event
- agent/trending
- agent/source
- agent/tags
- collector/nvd-index
- agent/software-canonical-lookup-request
- vendor/cisco
- canonical/cisco asa cx context-aware security
- version/cisco asa cx context-aware security/9.0.1
- version/cisco asa cx context-aware security/9.0.1-40
- version/cisco asa cx context-aware security/9.0.2
- version/cisco asa cx context-aware security/9.0.2-68
- version/cisco asa cx context-aware security/9.0_base
- version/cisco asa cx context-aware security/9.1.2-29
- version/cisco asa cx context-aware security/9.1.2-42
- version/cisco asa cx context-aware security/9.1.3-8
- version/cisco asa cx context-aware security/9.1.3-10
- version/cisco asa cx context-aware security/9.1.3-13
- version/cisco asa cx context-aware security/9.2.1-1
- version/cisco asa cx context-aware security/9.2.2-1
- version/cisco asa cx context-aware security/9.3\(1.1.112\)
- version/cisco asa cx context-aware security/9.3.1-1
- version/cisco asa cx context-aware security/9.3.2-1
- version/cisco asa cx context-aware security/9.3.3.1-13
- version/cisco asa cx context-aware security/9.3.4-1
- version/cisco asa cx context-aware security/9.3.4-2
- version/cisco asa cx context-aware security/9.3.4-3
- version/cisco asa cx context-aware security/9.3.4-4
- version/cisco asa cx context-aware security/9.3.4-5
- version/cisco asa cx context-aware security/9.3.4-6
- version/cisco asa cx context-aware security/9.3.4.1.11
- version/cisco asa cx context-aware security/9.3_base