CVE-2009-0687

Name: CVE-2009-0687
Creator: NVD / NIST
Published: 2009-08-11T10:30:00.217+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

UnknownEPSS 9.52%

Last modified Jun 16, 2026

CVE-2009-0687 is a vulnerability of currently unknown severity. 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.. EPSS estimates a 9.52% chance of exploitation in the next 30 days.

Description

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.

Metrics

EPSS Probability

9.52%

94.8th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-399

Affected Software

Vendor	Product	Versions
Midnightbsd	Midnightbsd	0.3-current
Mirbsd	Miros	<= 10
Netbsd	Netbsd	5.0
Openbsd	Openbsd	4.2
Openbsd	Openbsd	4.3
Openbsd	Openbsd	4.4
Openbsd	Openbsd	4.5

References

ftp://ftp.openbsd.org/pub/OpenBSD/patches/4.3/common/013_pf.patchPatch, Vendor Advisory
http://ftp.netbsd.org/pub/NetBSD/security/advisories/NetBSD-SA2009-001.txt.ascVendor Advisory
http://www.helith.net/txt/multiple_vendor-PF_null_pointer_dereference.txt
http://www.openbsd.org/errata43.html#013_pfPatch, Vendor Advisory
http://www.openbsd.org/errata44.html#013_pfPatch, Vendor Advisory
http://www.openbsd.org/errata45.html#002_pfPatch, Vendor Advisory
http://www.osvdb.org/53608
http://www.securityfocus.com/archive/1/502634
http://www.vupen.com/english/advisories/2009/1015Patch, Vendor Advisory
https://exchange.xforce.ibmcloud.com/vulnerabilities/49837
https://www.exploit-db.com/exploits/8406
https://www.exploit-db.com/exploits/8581
ftp://ftp.openbsd.org/pub/OpenBSD/patches/4.3/common/013_pf.patchPatch, Vendor Advisory
http://ftp.netbsd.org/pub/NetBSD/security/advisories/NetBSD-SA2009-001.txt.ascVendor Advisory
http://www.helith.net/txt/multiple_vendor-PF_null_pointer_dereference.txt
http://www.openbsd.org/errata43.html#013_pfPatch, Vendor Advisory
http://www.openbsd.org/errata44.html#013_pfPatch, Vendor Advisory
http://www.openbsd.org/errata45.html#002_pfPatch, Vendor Advisory
http://www.osvdb.org/53608
http://www.securityfocus.com/archive/1/502634
http://www.vupen.com/english/advisories/2009/1015Patch, Vendor Advisory
https://exchange.xforce.ibmcloud.com/vulnerabilities/49837
https://www.exploit-db.com/exploits/8406
https://www.exploit-db.com/exploits/8581

Timeline

Published: Aug 11, 2009
Last Modified: Jun 16, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2009-0687?

How severe is CVE-2009-0687?

Severity scoring for CVE-2009-0687 is pending analysis. The EPSS model estimates a 9.52% probability of exploitation in the next 30 days.

How do I fix CVE-2009-0687?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2009-0687?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST