Cisco FXOS and NX-OS Software Link Layer Discovery Protocol Denial of Service Vulnerability
CVE-2018-0395

8.8HIGH

Key Information:

Vendor

Cisco
Status
Cisco Nx-os Software
Firepower 4100 Series Next-generation Firewalls
Vendor
CVE Published:
17 October 2018

Badges

👾 Exploit Exists

What is CVE-2018-0395?

A vulnerability in the Link Layer Discovery Protocol (LLDP) implementation for Cisco FXOS Software and Cisco NX-OS Software could allow an unauthenticated, adjacent attacker to cause a denial of service (DoS) condition when the device unexpectedly reloads. The vulnerability is due to improper input validation of certain type, length, value (TLV) fields of the LLDP frame header. An attacker could exploit this vulnerability by sending a crafted LLDP packet to an interface on the targeted device. A successful exploit could allow the attacker to cause the switch to reload unexpectedly.

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Affected Version(s)

Cisco NX-OS Software < 6.2(1)

Firepower 4100 Series Next-Generation Firewalls < unspecified

References

https://tools.cisco.com/security/center/content/CiscoSecu...
vendor-advisoryx_refsource_CISCO
http://www.securitytracker.com/id/1041919
vdb-entryx_refsource_SECTRACK
http://www.securityfocus.com/bid/105674
vdb-entryx_refsource_BID

CVSS V3.1

Score:
8.8
Severity:
HIGH
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Adjacent Network
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
None
Scope:
Unchanged

Timeline

  • 👾

    Exploit known to exist

  • Vulnerability published

  • Vulnerability Reserved

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