#VU62920 Buffer overflow in NetBSD - CVE-2022-29867
Published: May 10, 2022
Vulnerability identifier: #VU62920
Vulnerability risk: Medium
CVSSv4.0: CVSS:4.0/AV:A/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Green
CVE-ID: CVE-2022-29867
CWE-ID: CWE-119
Exploitation vector: Adjecent network
Exploit availability:
No public exploit available
Vulnerable software:
NetBSD
NetBSD
Software vendor:
NetBSD Foundation, Inc
NetBSD Foundation, Inc
Description
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 updates from vendor's website.