SB2021032511 - Denial of service in Cisco Aironet Access Points
Published: March 25, 2021
Security Bulletin ID
SB2021032511
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) Buffer overflow (CVE-ID: CVE-2021-1439)
The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.
The vulnerability exists due to a boundary error in the multicast DNS (mDNS) gateway feature. A remote attacker on the local network can send a specially crafted mDNS packet, trigger memory corruption and cause a denial of service condition on the target system.
Remediation
Install update from vendor's website.