CVE-2023-27567

High

7.5/10

Summary

In OpenBSD 7.2, a TCP packet with destination port 0 that matches a pf divert-to rule can crash the kernel.

Attack Complexity: LOW
Attack Vector: NETWORK
Integrity Impact: NONE
Scope: UNCHANGED
User Interaction: NONE
Privileges Required: NONE
Confidentiality Impact: NONE
Availability Impact: HIGH

References

Advisory Timeline

Published Mar 03, 2023