SB2020041630 - Input validation error in EOS
Published: April 16, 2020 Updated: May 17, 2025
Security Bulletin ID
SB2020041630
CSH Severity
Medium
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) Input validation error (CVE-ID: CVE-2019-18948)
CWE-ID: CWE-20 - Improper input validation
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:Green
The vulnerability allows a remote non-authenticated attacker to perform a denial of service (DoS) attack.
The vulnerability exists due to an error in VxLAN implementation when handling ARP traffic. A remote attacker on the local network can send specially crafted ARP packets to the device and perform a denial of service (DoS) attack.
Remediation
Install update from vendor's website.