high
8.6
CWE
476
Advisory Published
Updated

CVE-2018-0305: Null Pointer Dereference

First published: Thu Jun 21 2018(Updated: )

A vulnerability in the Cisco Fabric Services component of Cisco FXOS Software and Cisco NX-OS Software could allow an unauthenticated, remote attacker to cause a denial of service (DoS) condition on the affected device. The vulnerability exists because the affected software insufficiently validates Cisco Fabric Services packets. An attacker could exploit this vulnerability by sending a crafted Cisco Fabric Services packet to an affected device. A successful exploit could allow the attacker to force a NULL pointer dereference and cause a DoS condition. This vulnerability affects the following if configured to use Cisco Fabric Services: Firepower 4100 Series Next-Generation Firewalls, Firepower 9300 Security Appliance, MDS 9000 Series Multilayer Switches, Nexus 2000 Series Fabric Extenders, Nexus 3000 Series Switches, Nexus 3500 Platform Switches, Nexus 5500 Platform Switches, Nexus 5600 Platform Switches, Nexus 6000 Series Switches, Nexus 7000 Series Switches, Nexus 7700 Series Switches, Nexus 9000 Series Switches in standalone NX-OS mode, Nexus 9500 R-Series Line Cards and Fabric Modules, UCS 6100 Series Fabric Interconnects, UCS 6200 Series Fabric Interconnects, UCS 6300 Series Fabric Interconnects. Cisco Bug IDs: CSCvd69966, CSCve02435, CSCve04859, CSCve41590, CSCve41593, CSCve41601.

Credit: ykramarz@cisco.com

Affected SoftwareAffected VersionHow to fix
Cisco Nexus 7000 Firmware=8.0\(1\)
Cisco Nexus 7000
Cisco Nexus 5000 Firmware=7.0\(0\)hsk\(0.357\)
Cisco Nexus 5000 Firmware=8.1\(0.2\)s0
Cisco Nexus 5000 Firmware=8.8\(0.1\)
Cisco Nexus 5000
Cisco Firepower 9000 Firmware=r211
Cisco Firepower 9000 Firmware=r231
Cisco Firepower 9000
Cisco Nexus 9000 Firmware=8.1\(0\)bd\(0.20\)
Cisco Nexus 9000 Firmware=8.1\(1\)s5
Cisco Nexus 9000
Cisco Unified Computing System Firmware=3.1\(3a\)a
Cisco Unified Computing System Firmware=7.0\(0\)hsk\(0.357\)
Cisco Unified Computing System

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Reference Links

Frequently Asked Questions

  • What is the vulnerability ID for this Cisco Fabric Services vulnerability?

    The vulnerability ID for this Cisco Fabric Services vulnerability is CVE-2018-0305.

  • What is the severity of CVE-2018-0305?

    The severity of CVE-2018-0305 is high with a severity value of 8.6.

  • How does CVE-2018-0305 affect Cisco Nexus 7000 Firmware?

    CVE-2018-0305 affects Cisco Nexus 7000 Firmware version 8.0(1).

  • What is the impact of CVE-2018-0305?

    CVE-2018-0305 can cause a denial of service (DoS) condition on the affected device.

  • How can I fix CVE-2018-0305?

    To fix CVE-2018-0305, it is recommended to update to the latest version of Cisco FXOS Software or Cisco NX-OS Software.

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