CVE-2019-12652

A vulnerability in the ingress packet processing function of Cisco IOS Software for Cisco Catalyst 4000 Series Switches could allow an unauthenticated, remote attacker to cause a denial of service (DoS) condition on an affected device. The vulnerability is due to improper resource allocation when processing TCP packets directed to the device on specific Cisco Catalyst 4000 Series Switches. An attacker could exploit this vulnerability by sending crafted TCP streams to an affected device. A successful exploit could cause the affected device to run out of buffer resources, impairing operations of control plane and management plane protocols, resulting in a DoS condition. This vulnerability can be triggered only by traffic that is destined to an affected device and cannot be exploited using traffic that transits an affected device.

CVSS v3 7.5 HIGH
CVSS v2.0 7.8 HIGH

7.5^/10

CVSS v3 : HIGH

Vector :

Exploitability : 3.9 / Impact : 3.6

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact HIGH

Scope UNCHANGED

7.8^/10

CVSS v2.0 : HIGH

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

Exploitability : 10.0 / Impact : 6.9

Access Vector NETWORK

Access Complexity LOW

Authentication NONE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact COMPLETE

References

Link	Resource
https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20190925-cat4000-tcp-dos	Vendor Advisory

Configurations

Configuration 1 (hide)

AND

OR	cpe:2.3:o:cisco:ios:15.2\(3\)e1:::::::*
	cpe:2.3:o:cisco:ios:15.2\(4\)e3:::::::*

OR	cpe:2.3:h:cisco:catalyst_4500_supervisor_engine_6-e:-:::::::*
	cpe:2.3:h:cisco:catalyst_4500_supervisor_engine_6l-e:-:::::::*
	cpe:2.3:h:cisco:catalyst_4900m:-:::::::*
	cpe:2.3:h:cisco:catalyst_4948e:-:::::::*
	cpe:2.3:h:cisco:catalyst_4948e-f:-:::::::*

History

No history.

Information

Published : 2019-09-25 21:15

Updated : 2023-12-10 13:13

NVD link : CVE-2019-12652

Mitre link : CVE-2019-12652

CVE.ORG link : CVE-2019-12652

JSON object : View

Products Affected

cisco

catalyst_4948e-f
catalyst_4500_supervisor_engine_6l-e
ios
catalyst_4900m
catalyst_4948e
catalyst_4500_supervisor_engine_6-e

CWE

NVD-CWE-Other CWE-399

Resource Management Errors

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The vulnerability is due to improper resource allocation when processing TCP packets directed to the device on specific Cisco Catalyst 4000 Series Switches. An attacker could exploit this vulnerability by sending crafted TCP streams to an affected device. A successful exploit could cause the affected device to run out of buffer resources, impairing operations of control plane and management plane protocols, resulting in a DoS condition. This vulnerability can be triggered only by traffic that is destined to an affected device and cannot be exploited using traffic that transits an affected device."}, {"lang": "es", "value": "Una vulnerabilidad en la funci\u00f3n de procesamiento de paquetes de ingreso del software Cisco IOS para Cisco Catalyst 4000 Series Switches, podr\u00eda permitir a un atacante remoto no autenticado causar una condici\u00f3n de denegaci\u00f3n de servicio (DoS) sobre un dispositivo afectado. La vulnerabilidad es debido a la asignaci\u00f3n de recursos inapropiada cuando se procesan paquetes TCP direccionados al dispositivo sobre Cisco Catalyst 4000 Series Switches espec\u00edficos. Un atacante podr\u00eda explotar esta vulnerabilidad mediante el env\u00edo de secuencias TCP dise\u00f1adas hacia un dispositivo afectado. Una explotaci\u00f3n con \u00e9xito podr\u00eda causar que el dispositivo afectado se quede sin recursos de almacenamiento intermedio, perjudicando las operaciones del plano de control y los protocolos del plano de administraci\u00f3n, resultando en una condici\u00f3n DoS. Esta vulnerabilidad solo puede ser activada por el tr\u00e1fico que est\u00e1 destinado hacia un dispositivo afectado y no puede ser explotado utilizando el tr\u00e1fico que transita en un dispositivo afectado."}], "lastModified": "2020-10-08T14:09:10.923", "configurations": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:o:cisco:ios:15.2\\(3\\)e1:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "757000B2-A8EB-464A-9A2D-EC4D920A0569"}, {"criteria": "cpe:2.3:o:cisco:ios:15.2\\(4\\)e3:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "7A9DDD1E-201F-42B8-ADC9-9CD2F3ED2C4F"}], "operator": "OR"}, {"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:h:cisco:catalyst_4500_supervisor_engine_6-e:-:*:*:*:*:*:*:*", "vulnerable": false, "matchCriteriaId": "0EF8023F-C8D7-4B98-9472-6EC365A19D48"}, {"criteria": "cpe:2.3:h:cisco:catalyst_4500_supervisor_engine_6l-e:-:*:*:*:*:*:*:*", "vulnerable": false, "matchCriteriaId": "15B137CB-C12C-47AF-9AF5-05C1B2086351"}, {"criteria": "cpe:2.3:h:cisco:catalyst_4900m:-:*:*:*:*:*:*:*", "vulnerable": false, "matchCriteriaId": "21A39CB5-8F97-4030-B9CD-D28BF5C811F6"}, {"criteria": "cpe:2.3:h:cisco:catalyst_4948e:-:*:*:*:*:*:*:*", "vulnerable": false, "matchCriteriaId": "472D57ED-EF56-4429-9341-BEC711215ED3"}, {"criteria": "cpe:2.3:h:cisco:catalyst_4948e-f:-:*:*:*:*:*:*:*", "vulnerable": false, "matchCriteriaId": "A405EFE7-7E96-47F1-A97D-E27923B8D98C"}], "operator": "OR"}], "operator": "AND"}], "sourceIdentifier": "ykramarz@cisco.com"}