SB2022022403 - Denial of service in Cisco Nexus 9000 Series Switches
Published: February 24, 2022
Security Bulletin ID
SB2022022403
Severity
Medium
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Remote access
Highest impact
Denial of service
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 security vulnerability.
1) Resource management error (CVE-ID: CVE-2022-20623)
The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.
The vulnerability exists due to a logic error in the Bidirectional Forwarding Detection (BFD) rate limiter functionality. A remote attacker can send a crafted IPv4 or IPv6 stream of traffic through the device and perform a denial of service attack.
Remediation
Install update from vendor's website.