Vulnerability Details : 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.
Vulnerability category: Denial of service
Products affected by CVE-2016-9225
- cpe:2.3:o:cisco:asa_cx_context-aware_security_software:9.1.3-10:*:*:*:*:*:*:*
- cpe:2.3:o:cisco:asa_cx_context-aware_security_software:9.1.3-13:*:*:*:*:*:*:*
- cpe:2.3:o:cisco:asa_cx_context-aware_security_software:9.0.1-40:*:*:*:*:*:*:*
- cpe:2.3:o:cisco:asa_cx_context-aware_security_software:9.0.2-68:*:*:*:*:*:*:*
- cpe:2.3:o:cisco:asa_cx_context-aware_security_software:9.3_base:*:*:*:*:*:*:*
- cpe:2.3:o:cisco:asa_cx_context-aware_security_software:9.3\(1.1.112\):*:*:*:*:*:*:*
- cpe:2.3:o:cisco:asa_cx_context-aware_security_software:9.0_base:*:*:*:*:*:*:*
- cpe:2.3:o:cisco:asa_cx_context-aware_security_software:9.0.2:*:*:*:*:*:*:*
- cpe:2.3:o:cisco:asa_cx_context-aware_security_software:9.1.2-29:*:*:*:*:*:*:*
- cpe:2.3:o:cisco:asa_cx_context-aware_security_software:9.1.2-42:*:*:*:*:*:*:*
- cpe:2.3:o:cisco:asa_cx_context-aware_security_software:9.3.1-1:*:*:*:*:*:*:*
- cpe:2.3:o:cisco:asa_cx_context-aware_security_software:9.0.1:*:*:*:*:*:*:*
- cpe:2.3:o:cisco:asa_cx_context-aware_security_software:9.2.1-1:*:*:*:*:*:*:*
- cpe:2.3:o:cisco:asa_cx_context-aware_security_software:9.1.3-8:*:*:*:*:*:*:*
- cpe:2.3:o:cisco:asa_cx_context-aware_security_software:9.3.2-1:*:*:*:*:*:*:*
- cpe:2.3:o:cisco:asa_cx_context-aware_security_software:9.3.4.1.11:*:*:*:*:*:*:*
- cpe:2.3:o:cisco:asa_cx_context-aware_security_software:9.3.4-2:*:*:*:*:*:*:*
- cpe:2.3:o:cisco:asa_cx_context-aware_security_software:9.3.4-1:*:*:*:*:*:*:*
- cpe:2.3:o:cisco:asa_cx_context-aware_security_software:9.3.4-3:*:*:*:*:*:*:*
- cpe:2.3:o:cisco:asa_cx_context-aware_security_software:9.3.4-4:*:*:*:*:*:*:*
- cpe:2.3:o:cisco:asa_cx_context-aware_security_software:9.3.4-6:*:*:*:*:*:*:*
- cpe:2.3:o:cisco:asa_cx_context-aware_security_software:9.3.3.1-13:*:*:*:*:*:*:*
- cpe:2.3:o:cisco:asa_cx_context-aware_security_software:9.2.2-1:*:*:*:*:*:*:*
- cpe:2.3:o:cisco:asa_cx_context-aware_security_software:9.3.4-5:*:*:*:*:*:*:*
Exploit prediction scoring system (EPSS) score for CVE-2016-9225
0.30%
Probability of exploitation activity in the next 30 days
EPSS Score History
~ 69 %
Percentile, the proportion of vulnerabilities that are scored at or less
CVSS scores for CVE-2016-9225
Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source | First Seen |
---|---|---|---|---|---|---|
7.8
|
HIGH | AV:N/AC:L/Au:N/C:N/I:N/A:C |
10.0
|
6.9
|
NIST | |
8.6
|
HIGH | CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H |
3.9
|
4.0
|
NIST |
CWE ids for CVE-2016-9225
-
Assigned by:
- nvd@nist.gov (Primary)
- ykramarz@cisco.com (Secondary)
References for CVE-2016-9225
-
http://www.securitytracker.com/id/1037696
Cisco ASA CX Context-Aware Security Module IP Fragment Processing Flaw Lets Remote Users Consume Excessive Memory Resources - SecurityTrackerThird Party Advisory;VDB Entry
-
http://www.securityfocus.com/bid/95788
Cisco Adaptive Security Appliance CX Context-Aware Security Denial of Service VulnerabilityThird Party Advisory;VDB Entry
-
https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20170125-cas
Cisco Adaptive Security Appliance CX Context-Aware Security Denial of Service VulnerabilityVendor Advisory
Jump to