Remote Denial of Service in OpenBSD Packet Filter Affecting OpenBSD, NetBSD, and MirOS
CVE-2009-0687

Currently unrated

Key Information:

Vendor: OpenBSD
Status: OpenBSD; Miros; Netbsd; Midnightbsd
Vendor: CVE Published:; 11 August 2009

Badges

👾 Exploit Exists🟡 Public PoC🟣 EPSS 13%

What is CVE-2009-0687?

The vulnerability exists in the pf_test_rule function found within the OpenBSD Packet Filter (PF) used across various operating systems. It enables remote attackers to induce a denial of service condition by sending specifically crafted IPv4 packets containing an ICMPv6 payload, which can lead to a NULL pointer dereference and ultimately, system panic. This affects OpenBSD versions 4.2 through 4.5, specific versions of NetBSD, and other related systems.

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Exploit Proof of Concept (PoC)

PoC code is written by security researchers to demonstrate the vulnerability can be exploited. PoC code is also a key component for weaponization which could lead to ransomware.

CVE-2009-0687 - Proof of Concept