SB2018101817 - Denial of service in Cisco IOS

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Main Vulnerability Database SB2018101817

SB2018101817 - Denial of service in Cisco IOS

Published: October 18, 2018

Security Bulletin ID SB2018101817
CSH Severity
Low
Patch available
YES
Number of vulnerabilities 1
Exploitation vector Adjecent network
Highest impact Denial of service

Breakdown by Severity

Low 100%
  • Low
  • Medium
  • High
  • Critical

Description

This security bulletin contains information about 1 vulnerability.


1) Improper input validation (CVE-ID: CVE-2018-0441)

CWE-ID: CWE-20 - Improper input validation

CVSSv4: CVSS:4.0/AV:A/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear


The vulnerability allows an adjacent unauthenticated attacker to cause DoS condition on the target system.

The vulnerability exists in the 802.11r Fast Transition feature set due to a corruption of certain timer mechanisms triggered by specific roaming events. An adjacent attacker can send malicious reassociation events multiple times to the same AP in a short period of time and cause a DoS condition on the affected AP.


Remediation

Install update from vendor's website.

References