SB2022011321 - Denial of service when handling PPPoE messages in Junos OS smgd
Published: January 13, 2022
Security Bulletin ID
SB2022011321
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 security vulnerability.
1) Error Handling (CVE-ID: CVE-2022-22160)
The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.
The vulnerability exists due to improper error handling in the subscriber management daemon (smgd). In a subscriber management / broadband edge environment if a single session group configuration contains dual-stack and a pp0 interface, smgd will crash and restart every time a PPPoE client sends a specific message.
Remediation
Install update from vendor's website.