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cvelistCiscoCVELIST:CVE-2019-1599
HistoryMar 06, 2019 - 12:00 a.m.

CVE-2019-1599 Cisco NX-OS Software Netstack Denial of Service Vulnerability

2019-03-0600:00:00
CWE-399
cisco
www.cve.org
2

CVSS3

8.6

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

CHANGED

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

HIGH

CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H

AI Score

8.5

Confidence

High

EPSS

0.002

Percentile

52.3%

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).

CNA Affected

[
  {
    "product": "Nexus 1000V Switch for Microsoft Hyper-V ",
    "vendor": "Cisco",
    "versions": [
      {
        "lessThan": "5.2(1)SM3(2.1)",
        "status": "affected",
        "version": "unspecified",
        "versionType": "custom"
      }
    ]
  },
  {
    "product": "Nexus 1000V Switch for VMware vSphere ",
    "vendor": "Cisco",
    "versions": [
      {
        "lessThan": "5.2(1)SV3(4.1a)",
        "status": "affected",
        "version": "unspecified",
        "versionType": "custom"
      }
    ]
  },
  {
    "product": "Nexus 3000 Series Switches",
    "vendor": "Cisco",
    "versions": [
      {
        "lessThan": "7.0(3)I7(6)",
        "status": "affected",
        "version": "unspecified",
        "versionType": "custom"
      },
      {
        "lessThan": "9.2(2)",
        "status": "affected",
        "version": "unspecified",
        "versionType": "custom"
      }
    ]
  },
  {
    "product": "Nexus 3500 Platform Switches",
    "vendor": "Cisco",
    "versions": [
      {
        "lessThan": "6.0(2)A8(11)",
        "status": "affected",
        "version": "unspecified",
        "versionType": "custom"
      },
      {
        "lessThan": "7.0(3)I7(6)",
        "status": "affected",
        "version": "unspecified",
        "versionType": "custom"
      },
      {
        "lessThan": "9.2(2)",
        "status": "affected",
        "version": "unspecified",
        "versionType": "custom"
      }
    ]
  },
  {
    "product": "Nexus 3600 Platform Switches",
    "vendor": "Cisco",
    "versions": [
      {
        "lessThan": "7.0(3)F3(5)",
        "status": "affected",
        "version": "unspecified",
        "versionType": "custom"
      },
      {
        "lessThan": "9.2(2)",
        "status": "affected",
        "version": "unspecified",
        "versionType": "custom"
      }
    ]
  },
  {
    "product": "Nexus 5500, 5600, and 6000 Series Switches",
    "vendor": "Cisco",
    "versions": [
      {
        "lessThan": "7.1(5)N1(1b)",
        "status": "affected",
        "version": "unspecified",
        "versionType": "custom"
      },
      {
        "lessThan": "7.3(5)N1(1)",
        "status": "affected",
        "version": "unspecified",
        "versionType": "custom"
      }
    ]
  },
  {
    "product": "Nexus 7000 and 7700 Series Switches",
    "vendor": "Cisco",
    "versions": [
      {
        "lessThan": "6.2(22)",
        "status": "affected",
        "version": "unspecified",
        "versionType": "custom"
      },
      {
        "lessThan": "7.3(3)D1(1)",
        "status": "affected",
        "version": "unspecified",
        "versionType": "custom"
      },
      {
        "lessThan": "8.2(3)",
        "status": "affected",
        "version": "unspecified",
        "versionType": "custom"
      },
      {
        "lessThan": "8.3(2)",
        "status": "affected",
        "version": "unspecified",
        "versionType": "custom"
      }
    ]
  },
  {
    "product": "Nexus 9000 Series Switches in Standalone NX-OS Mode",
    "vendor": "Cisco",
    "versions": [
      {
        "lessThan": "7.0(3)I7(6)",
        "status": "affected",
        "version": "unspecified",
        "versionType": "custom"
      },
      {
        "lessThan": "9.2(2)",
        "status": "affected",
        "version": "unspecified",
        "versionType": "custom"
      }
    ]
  },
  {
    "product": "Nexus 9500 R-Series Line Cards and Fabric Modules",
    "vendor": "Cisco",
    "versions": [
      {
        "lessThan": "7.0(3)F3(5)",
        "status": "affected",
        "version": "unspecified",
        "versionType": "custom"
      },
      {
        "lessThan": "9.2(2)",
        "status": "affected",
        "version": "unspecified",
        "versionType": "custom"
      }
    ]
  },
  {
    "product": "UCS 6200 and 6300 Series Fabric Interconnect",
    "vendor": "Cisco",
    "versions": [
      {
        "lessThan": "3.2(3j)",
        "status": "affected",
        "version": "unspecified",
        "versionType": "custom"
      },
      {
        "lessThan": "4.0(2a)",
        "status": "affected",
        "version": "unspecified",
        "versionType": "custom"
      }
    ]
  },
  {
    "product": "UCS 6400 Series Fabric Interconnect",
    "vendor": "Cisco",
    "versions": [
      {
        "lessThan": "4.0(2a)",
        "status": "affected",
        "version": "unspecified",
        "versionType": "custom"
      }
    ]
  }
]

CVSS3

8.6

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

CHANGED

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

HIGH

CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H

AI Score

8.5

Confidence

High

EPSS

0.002

Percentile

52.3%

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