SB2018101817 - Denial of service in Cisco IOS
Published: October 18, 2018
Security Bulletin ID
SB2018101817
Severity
Low
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Adjecent network
Highest impact
Denial of service
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 security vulnerability.
1) Improper input validation (CVE-ID: CVE-2018-0441)
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.