SB2022051006 - Remote code execution in NetBSD PPPoE client
Published: May 10, 2022
Security Bulletin ID
SB2022051006
Severity
Medium
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Adjecent network
Highest impact
Code execution
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 security vulnerability.
1) Buffer overflow (CVE-ID: CVE-2022-29867)
The vulnerability allows a remote attacker to execute arbitrary code on the target system.
The vulnerability exists due to a boundary error in PPPoE client when handling responses to broadcasts discovery packets. A remote attacker who controls server on the same network can send a specially crafted response to the affected PPPoE client, trigger memory corruption and execute arbitrary code on the system.
Remediation
Install update from vendor's website.