SB20231018143 - Denial of service in Junos OS
Published: October 18, 2023
Security Bulletin ID
SB20231018143
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) Allocation of resources without limits or throttling (CVE-ID: CVE-2023-44191)
The vulnerability allows a remote non-authenticated attacker to perform a denial of service (DoS) attack.
Juniper Networks Junos OS allows an unauthenticated, network-based attacker to cause Denial of Service (DoS). On all Junos OS QFX5000 Series and EX4000 Series platforms, when a high number of VLANs are configured, a specific DHCP packet will cause PFE hogging which will lead to dropping of socket connections.
Remediation
Install update from vendor's website.