SB2023022301 - Denial of service in Cisco Nexus 9000 Series Fabric Switches in ACI Mode
Published: February 23, 2023
Security Bulletin ID
SB2023022301
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) Memory leak (CVE-ID: CVE-2023-20089)
CWE-ID: CWE-401 - Missing release of memory after effective lifetime
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 on the target system.
The vulnerability exists due memory leak in the Link Layer Discovery Protocol (LLDP) feature. A remote attacker on the local network can force the application to leak memory and perform denial of service attack.
Remediation
Install update from vendor's website.