Instituto Nacional de ciberseguridad. Sección Incibe
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CVE-2016-9225

Severity CVSS v4.0:
Pending analysis
Type:
CWE-399 Resource Management Errors
Publication date:
01/02/2017
Last modified:
20/04/2025

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.

Impact

Vector 3.x
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H CVSS v3.1 Severity and Metrics:

Base Score: 8.60 HIGH
Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H

Attack Vector (AV): Network
Attack Complexity (AC): Low
Privileges Required (PR): None
User Interaction (UI): None
Scope (S): Changed
Confidentiality (C): None
Integrity (I): None
Availability (A): High

Base Score 3.x
8.60
Severity 3.x
HIGH
Vector 2.0
AV:N/AC:L/Au:N/C:N/I:N/A:C CVSS v2.0 Severity and Metrics:

Base Score: 7.80 HIGH
Vector: AV:N/AC:L/Au:N/C:N/I:N/A:C

Attack Vector (AV): Network
Attack Complexity (AC): Low
Authentication (Au): None
Confidentiality (C): None
Integrity (I): None
Availability (A): Complete

Base Score 2.0
7.80
Severity 2.0
HIGH

Vulnerable products and versions

CPE From Up to
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:9.0.1-40:*:*:*:*:*:*:*
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:9.0.2-68:*:*:*:*:*:*:*
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:9.1.2-29:*:*:*:*:*:*:*
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:9.1.3-8:*:*:*:*:*:*:*
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:9.2.1-1:*:*:*:*:*:*:*
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\(1.1.112\):*:*:*:*:*:*:*
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:9.3.2-1:*:*:*:*:*:*:*

To consult the complete list of CPE names with products and versions, see this page


References to Advisories, Solutions, and Tools