SB2024032828 - Denial of service in Cisco IOS XE Software for Wireless LAN Controllers
Published: March 28, 2024 Updated: March 29, 2024
Security Bulletin ID
SB2024032828
CSH 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 vulnerability.
1) Incomplete cleanup (CVE-ID: CVE-2024-20303)
CWE-ID: CWE-459 - Incomplete cleanup
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 a remote attacker to perform a denial of service (DoS) attack.
The vulnerability exists due to incomplete cleanup in the multicast DNS (mDNS) gateway feature. A remote attacker on the local network can cause the wireless controller to have high CPU utilization, leading to denial of service condition.
Remediation
Install update from vendor's website.