Vulnerability Monitor

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CVE-2009-0687

The pf_test_rule function in OpenBSD Packet Filter (PF), as used in OpenBSD 4.2 through 4.5, NetBSD 5.0 before RC3, MirOS 10 and earlier, and MidnightBSD 0.3-current allows remote attackers to cause a denial of service (panic) via crafted IP packets that trigger a NULL pointer dereference during translation, related to an IPv4 packet with an ICMPv6 payload.

Security Impact Summary

CVE-2009-0687 is a security vulnerability that . Impacting 4 products from midnightbsd, from mirbsd, from netbsd and 1 other, organizations running these solutions should prioritize assessment and patching.

Historical Context

Originally identified in 2009, this vulnerability predates many modern security frameworks and practices. The vulnerability landscape of that era was characterized by different threat models and less mature defense mechanisms compared to contemporary standards.

Published

2009-08-11T10:30:00.217

Last Modified

2025-04-09T00:30:58.490

Status

Deferred

Source

[email protected]

Severity

CVSSv2: 7.8 (HIGH)

CVSSv2 Vector

AV:N/AC:L/Au:N/C:N/I:N/A:C

Access Vector: NETWORK
Access Complexity: LOW
Authentication: NONE
Confidentiality Impact: NONE
Integrity Impact: NONE
Availability Impact: COMPLETE

Exploitability Score

10.0

Impact Score

6.9

Weaknesses

Type: Primary
CWE-399

Affected Vendors & Products

Type	Vendor	Product	Version/Range	Vulnerable?
Operating System	midnightbsd	midnightbsd	0.3-current	Yes
Operating System	mirbsd	miros	≤ 10	Yes
Operating System	netbsd	netbsd	5.0	Yes
Operating System	openbsd	openbsd	4.2	Yes
Operating System	openbsd	openbsd	4.3	Yes
Operating System	openbsd	openbsd	4.4	Yes
Operating System	openbsd	openbsd	4.5	Yes

References

ftp://ftp.openbsd.org/pub/OpenBSD/patches/4.3/common/013_pf.patch Patch, Vendor Advisory ([email protected])
http://ftp.netbsd.org/pub/NetBSD/security/advisories/NetBSD-SA2009-001.txt.asc Vendor Advisory ([email protected])
http://www.helith.net/txt/multiple_vendor-PF_null_pointer_dereference.txt ([email protected])
http://www.openbsd.org/errata43.html#013_pf Patch, Vendor Advisory ([email protected])
http://www.openbsd.org/errata44.html#013_pf Patch, Vendor Advisory ([email protected])
http://www.openbsd.org/errata45.html#002_pf Patch, Vendor Advisory ([email protected])
http://www.osvdb.org/53608 ([email protected])
http://www.securityfocus.com/archive/1/502634 ([email protected])
http://www.vupen.com/english/advisories/2009/1015 Patch, Vendor Advisory ([email protected])
https://exchange.xforce.ibmcloud.com/vulnerabilities/49837 ([email protected])
https://www.exploit-db.com/exploits/8406 ([email protected])
https://www.exploit-db.com/exploits/8581 ([email protected])
ftp://ftp.openbsd.org/pub/OpenBSD/patches/4.3/common/013_pf.patch Patch, Vendor Advisory (af854a3a-2127-422b-91ae-364da2661108)
http://ftp.netbsd.org/pub/NetBSD/security/advisories/NetBSD-SA2009-001.txt.asc Vendor Advisory (af854a3a-2127-422b-91ae-364da2661108)
http://www.helith.net/txt/multiple_vendor-PF_null_pointer_dereference.txt (af854a3a-2127-422b-91ae-364da2661108)
http://www.openbsd.org/errata43.html#013_pf Patch, Vendor Advisory (af854a3a-2127-422b-91ae-364da2661108)
http://www.openbsd.org/errata44.html#013_pf Patch, Vendor Advisory (af854a3a-2127-422b-91ae-364da2661108)
http://www.openbsd.org/errata45.html#002_pf Patch, Vendor Advisory (af854a3a-2127-422b-91ae-364da2661108)
http://www.osvdb.org/53608 (af854a3a-2127-422b-91ae-364da2661108)
http://www.securityfocus.com/archive/1/502634 (af854a3a-2127-422b-91ae-364da2661108)
http://www.vupen.com/english/advisories/2009/1015 Patch, Vendor Advisory (af854a3a-2127-422b-91ae-364da2661108)
https://exchange.xforce.ibmcloud.com/vulnerabilities/49837 (af854a3a-2127-422b-91ae-364da2661108)
https://www.exploit-db.com/exploits/8406 (af854a3a-2127-422b-91ae-364da2661108)
https://www.exploit-db.com/exploits/8581 (af854a3a-2127-422b-91ae-364da2661108)

How SecUtils Interprets This CVE

SecUtils normalizes and enriches National Vulnerability Database (NVD) records by standardizing vendor and product identifiers, aggregating vulnerability metadata from both NVD and MITRE sources, and providing structured context for security teams. For midnightbsd's affected products, we extract Common Platform Enumeration (CPE) data, Common Weakness Enumeration (CWE) classifications, CVSS severity metrics, and reference data to enable rapid vulnerability prioritization and asset correlation. This record contains no exploit code, proof-of-concept instructions, or attack methodologies—only defensive intelligence necessary for patch management, risk assessment, and security operations.