CVE-2019-1599

A vulnerability in the network stack of Cisco NX-OS Software could allow an unauthenticated, remote attacker to cause a denial of service (DoS) condition on the affected device. The vulnerability is due to an issue with allocating and freeing memory buffers in the network stack. An attacker could exploit this vulnerability by sending crafted TCP streams to an affected device in a sustained way. A successful exploit could cause the network stack of an affected device to run out of available buffers, impairing operations of control plane and management plane protocols, resulting in a DoS condition. Note: 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. Nexus 1000V Switch for Microsoft Hyper-V is affected in versions prior to 5.2(1)SM3(2.1). Nexus 1000V Switch for VMware vSphere is affected in versions prior to 5.2(1)SV3(4.1a). Nexus 3000 Series Switches are affected in versions prior to 7.0(3)I7(6) and 9.2(2). Nexus 3500 Platform Switches are affected in versions prior to 6.0(2)A8(11), 7.0(3)I7(6), and 9.2(2). Nexus 3600 Platform Switches are affected in versions prior to 7.0(3)F3(5) and 9.2(2). Nexus 5500, 5600, and 6000 Series Switches are affected in versions prior to 7.1(5)N1(1b) and 7.3(5)N1(1). Nexus 7000 and 7700 Series Switches are affected in versions prior to 6.2(22. Nexus 9500 R-Series Line Cards and Fabric Modules are affected in versions prior to 7.0(3)F3(5) and 9.2(2). UCS 6200 and 6300 Series Fabric Interconnect are affected in versions prior to 3.2(3j) and 4.0(2a). UCS 6400 Series Fabric Interconnect are affected in versions prior to 4.0(2a).

CVSS v3 8.6 HIGH
CVSS v2.0 7.8 HIGH

8.6^/10

CVSS v3 : HIGH

Vector :

Exploitability : 3.9 / Impact : 4.0

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact HIGH

Scope CHANGED

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
http://www.securityfocus.com/bid/107342	Third Party Advisory VDB Entry
https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20190306-nxos-netstack	Patch Vendor Advisory

Configurations

Configuration 1 (hide)

AND

cpe:2.3:o:cisco:nx-os:*:*:*:*:*:*:*:*

OR	cpe:2.3:h:cisco:nexus_3000:-:::::::*
	cpe:2.3:h:cisco:nexus_3500:-:::::::*
	cpe:2.3:h:cisco:nexus_3600:-:::::::*

Configuration 2 (hide)

AND

cpe:2.3:o:cisco:nx-os:*:*:*:*:*:*:*:*

cpe:2.3:h:cisco:nexus_3500:-:*:*:*:*:*:*:*

Configuration 3 (hide)

AND

cpe:2.3:o:cisco:nx-os:*:*:*:*:*:*:*:*

cpe:2.3:h:cisco:nexus_3600:-:*:*:*:*:*:*:*

Configuration 4 (hide)

AND

cpe:2.3:o:cisco:nx-os:*:*:*:*:*:*:*:*

OR	cpe:2.3:h:cisco:nexus_5500:-:::::::*
	cpe:2.3:h:cisco:nexus_5600:-:::::::*
	cpe:2.3:h:cisco:nexus_6000:-:::::::*

Configuration 5 (hide)

AND

cpe:2.3:o:cisco:nx-os:*:*:*:*:*:*:*:*

OR	cpe:2.3:h:cisco:nexus_7000:-:::::::*
	cpe:2.3:h:cisco:nexus_7700:-:::::::*

Configuration 6 (hide)

AND

cpe:2.3:o:cisco:nx-os:*:*:*:*:*:*:*:*

OR	cpe:2.3:h:cisco:nexus_9000:-:::::::*
	cpe:2.3:h:cisco:nexus_9500:-:::::::*

Configuration 7 (hide)

AND

cpe:2.3:o:cisco:nx-os:*:*:*:*:*:*:*:*

cpe:2.3:h:cisco:nexus_3500:-:*:*:*:*:*:*:*

Configuration 8 (hide)

AND

cpe:2.3:o:cisco:nx-os:*:*:*:*:*:*:*:*

OR	cpe:2.3:h:cisco:nexus_7000:-:::::::*
	cpe:2.3:h:cisco:nexus_7700:-:::::::*

Configuration 9 (hide)

AND

cpe:2.3:o:cisco:nx-os:*:*:*:*:*:*:*:*

cpe:2.3:h:cisco:nexus_3000:-:*:*:*:*:*:*:*

Configuration 10 (hide)

AND

cpe:2.3:o:cisco:nx-os:*:*:*:*:*:*:*:*

cpe:2.3:h:cisco:nexus_9500:-:*:*:*:*:*:*:*

Configuration 11 (hide)

AND

cpe:2.3:o:cisco:nx-os:*:*:*:*:*:*:*:*

cpe:2.3:h:cisco:nexus_1000v:-:*:*:*:*:microsoft_hyper-v:*:*

Configuration 12 (hide)

AND

cpe:2.3:o:cisco:nx-os:*:*:*:*:*:*:*:*

cpe:2.3:h:cisco:nexus_1000v:-:*:*:*:*:vmware_vsphere:*:*

Configuration 13 (hide)

AND

cpe:2.3:o:cisco:nx-os:*:*:*:*:*:*:*:*

OR	cpe:2.3:h:cisco:ucs_6200:-:::::::*
	cpe:2.3:h:cisco:ucs_6300:-:::::::*

Configuration 14 (hide)

AND

cpe:2.3:o:cisco:nx-os:*:*:*:*:*:*:*:*

cpe:2.3:h:cisco:ucs_6400:-:*:*:*:*:*:*:*

Configuration 15 (hide)

AND

cpe:2.3:o:cisco:nx-os:*:*:*:*:*:*:*:*

OR	cpe:2.3:h:cisco:ucs_6200:-:::::::*
	cpe:2.3:h:cisco:ucs_6300:-:::::::*

Configuration 16 (hide)

AND

cpe:2.3:o:cisco:nx-os:*:*:*:*:*:*:*:*

cpe:2.3:h:cisco:nexus_3000:-:*:*:*:*:*:*:*

Configuration 17 (hide)

AND

cpe:2.3:o:cisco:nx-os:*:*:*:*:*:*:*:*

OR	cpe:2.3:h:cisco:nexus_5500:-:::::::*
	cpe:2.3:h:cisco:nexus_5600:-:::::::*
	cpe:2.3:h:cisco:nexus_6000:-:::::::*

Configuration 18 (hide)

AND

cpe:2.3:o:cisco:nx-os:*:*:*:*:*:*:*:*

OR	cpe:2.3:h:cisco:nexus_7000:-:::::::*
	cpe:2.3:h:cisco:nexus_7700:-:::::::*

Configuration 19 (hide)

AND

cpe:2.3:o:cisco:nx-os:*:*:*:*:*:*:*:*

OR	cpe:2.3:h:cisco:nexus_7000:-:::::::*
	cpe:2.3:h:cisco:nexus_7700:-:::::::*

Configuration 20 (hide)

AND

cpe:2.3:o:cisco:nx-os:*:*:*:*:*:*:*:*

cpe:2.3:h:cisco:nexus_9000:-:*:*:*:*:*:*:*

Configuration 21 (hide)

AND

cpe:2.3:o:cisco:nx-os:*:*:*:*:*:*:*:*

cpe:2.3:h:cisco:nexus_9000:-:*:*:*:*:*:*:*

History

No history.

Information

Published : 2019-03-07 20:29

Updated : 2023-12-10 12:59

NVD link : CVE-2019-1599

Mitre link : CVE-2019-1599

CVE.ORG link : CVE-2019-1599

JSON object : View

Products Affected

cisco

nexus_3500
nx-os
nexus_3000
ucs_6200
nexus_6000
nexus_5500
nexus_5600
nexus_7000
nexus_9500
nexus_3600
nexus_7700
ucs_6300
nexus_1000v
ucs_6400
nexus_9000

CWE

CWE-770

Allocation of Resources Without Limits or Throttling

CWE-399

Resource Management Errors

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The vulnerability is due to an issue with allocating and freeing memory buffers in the network stack. An attacker could exploit this vulnerability by sending crafted TCP streams to an affected device in a sustained way. A successful exploit could cause the network stack of an affected device to run out of available buffers, impairing operations of control plane and management plane protocols, resulting in a DoS condition. Note: 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. Nexus 1000V Switch for Microsoft Hyper-V is affected in versions prior to 5.2(1)SM3(2.1). Nexus 1000V Switch for VMware vSphere is affected in versions prior to 5.2(1)SV3(4.1a). Nexus 3000 Series Switches are affected in versions prior to 7.0(3)I7(6) and 9.2(2). Nexus 3500 Platform Switches are affected in versions prior to 6.0(2)A8(11), 7.0(3)I7(6), and 9.2(2). 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Un atacante podr\u00eda explotar esta vulnerabilidad enviando flujos TCP manipulados a un dispositivo afectado. Su explotaci\u00f3n con \u00e9xito podr\u00eda provocar que la red de pila de un dispositivo afectado agote los b\u00faferes disponibles, afectando a las operaciones de los protocolos control plane y management, conduciendo a una condici\u00f3n de denegaci\u00f3n de servicio (DoS). Nota: esta vulnerabilidad puede desencadenarse solo por tr\u00e1fico destinado a un dispositivo afectado y no puede explotarse mediante el uso de tr\u00e1fico que transite por un dispositivo afectado. El switch de Nexus 1000V para Microsoft Hyper-V se ve afectado en versiones anteriores a la 5.2(1)SM3(2.1). El switch de Nexus 1000V para VMware vSphere se ve afectado en versiones anteriores a la 5.2(1)SV3(4.1a). Los switches de Nexus 3000 Series se ven afectados en versiones anteriores a las 7.0(3)I7(6) y 9.2(2). Los switches de Nexus 3500 Platform, se ven afectados en versiones anteriores a las 6.0(2)A8(11), 7.0(3)I7(6) y 9.2(2). Los switches de Nexus 3600 Platform se ven afectados en versiones anteriores a la 7.0(3)F3(5) y 9.2(2). Los switches de Nexus, en sus series 5500, 5600 y 6000, se ven afectados en versiones anteriores a las 7.1(5)N1(1b) y 7.3(5)N1(1). Los switches de Nexus, en sus series 7000 y 7700, se ven afectados en versiones anteriores a la 6.2(22). Los switches de 9500 R-Series Line Cards y Fabric Modules se ven afectados en versiones anteriores a las 7.0(3)F3(5) y 9.2(2). UCS 6200 y 6300 Series Fabric Interconnect, se ven afectados en versiones anteriores a las 3.2(3j) y 4.0(2a). 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