CVE-2018-0303: Buffer Overflow

First published: Thu Jun 21 2018(Updated: )

A vulnerability in the Cisco Discovery Protocol component of Cisco FXOS Software and Cisco NX-OS Software could allow an unauthenticated, adjacent attacker to execute arbitrary code as root or cause a denial of service (DoS) condition on the affected device. The vulnerability exists because of insufficiently validated Cisco Discovery Protocol packet headers. An attacker could exploit this vulnerability by sending a crafted Cisco Discovery Protocol packet to a Layer 2 adjacent affected device. A successful exploit could allow the attacker to cause a buffer overflow that could allow the attacker to execute arbitrary code as root or cause a DoS condition on the affected device. This vulnerability affects the following if configured to use Cisco Discovery Protocol: Firepower 4100 Series Next-Generation Firewalls, Firepower 9300 Security Appliance, MDS 9000 Series Multilayer Switches, Nexus 1000V Series Switches, Nexus 1100 Series Cloud Services Platforms, 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 Fabric Switches in Application Centric Infrastructure (ACI) mode, 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: CSCvc22202, CSCvc22205, CSCvc22208, CSCvc88078, CSCvc88150, CSCvc88159, CSCvc88162, CSCvc88167.

Credit: ykramarz@cisco.com

Affected Software	Affected Version	How to fix
Cisco Nx-os	=7.0\(0\)hsk\(0.357\)
Cisco Nx-os	=8.1\(0.2\)s0
Cisco Nx-os	=8.8\(0.1\)
Cisco Nexus 5000
Cisco Nexus 5010
Cisco Nexus 5020
Cisco Nexus 5548p
Cisco Nexus 5548up
Cisco Nexus 5596t
Cisco Nexus 5596up
Cisco Nexus 56128p
Cisco Nexus 5624q
Cisco Nexus 5648q
Cisco Nexus 5672up
Cisco Nexus 5696q
Cisco Nx-os	=8.0\(1\)
Cisco Nexus 7000
Cisco Nexus 7700
Cisco Nx-os	=8.8\(3.5\)s0
Cisco Nexus 92160yc-x
Cisco Nexus 92304qc
Cisco Nexus 9236c
Cisco Nexus 9272q
Cisco Nexus 93108tc-ex
Cisco Nexus 93120tx
Cisco Nexus 93128tx
Cisco Nexus 93180yc-ex
Cisco Nexus 9332pq
Cisco Nexus 9372px
Cisco Nexus 9372tx
Cisco Nexus 9396px
Cisco Nexus 9396tx
Cisco Nexus 9504
Cisco Nexus 9508
Cisco Nexus 9516
Cisco Nexus N9k-c9508-fm-r
Cisco Nexus N9k-x9636c-r
Cisco Nexus N9k-x9636q-r
Cisco Nx-os	=7.0\(3\)i4\(7\)
Cisco Nx-os	=7.0\(3\)i7\(1\)
Cisco Nexus 172tq-xl
Cisco Nexus 3016
Cisco Nexus 3048
Cisco Nexus 3064-32t
Cisco Nexus 3064-t
Cisco Nexus 3064-x
Cisco Nexus 3100-v
Cisco Nexus 31128pq
Cisco Nexus 3132c-z
Cisco Nexus 3132q
Cisco Nexus 3132q-x
Cisco Nexus 3132q-xl
Cisco Nexus 3164q
Cisco Nexus 3172pq
Cisco Nexus 3172pq-xl
Cisco Nexus 3172tq
Cisco Nexus 3172tq-32t
Cisco Nexus 3232c
Cisco Nexus 3264c-e
Cisco Nexus 3264q
Cisco Nexus 34180yc
Cisco Nexus 3524-x
Cisco Nexus 3524-xl
Cisco Nexus 3548
Cisco Nexus 3548-x
Cisco Nexus 3548-xl
Cisco Nexus 3636c-r
Cisco Nexus C36180yc-r
Cisco Nexus 2148t
Cisco Nexus 2224tp Ge
Cisco Nexus 2232pp 10ge
Cisco Nexus 2232tm-e 10ge
Cisco Nexus 2232tm 10ge
Cisco Nexus 2248pq 10ge
Cisco Nexus 2248tp-e
Cisco Nexus 2248tp Ge
Cisco Nexus 6001p
Cisco Nexus 6001t
Cisco Nx-os	=3.1\(3a\)a
Cisco Ucs 6120xp
Cisco Ucs 6140xp
Cisco Ucs 6248up
Cisco Ucs 6296up
Cisco Ucs 6324
Cisco Ucs 6332
Cisco Firepower Extensible Operating System	>=1.1<1.1.4.179
Cisco Firepower Extensible Operating System	>=2.0<2.0.1.153
Cisco Firepower Extensible Operating System	>=2.1.1<2.1.1.86
Cisco Firepower Extensible Operating System	>=2.2.1<2.2.1.70
Cisco Firepower Extensible Operating System	>=2.2.2<2.2.2.17
Cisco Firepower 4110
Cisco Firepower 4120
Cisco Firepower 4140
Cisco Firepower 4150
Cisco Firepower 9300 Security Appliance

CVE-2018-0303: Buffer Overflow

Never miss a vulnerability like this again

Reference Links

Company

Resources

Contact