CVE-2009-0687

Public Exploit

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.

Category

7.8
CVSS
Severity: High
CVSS 2.0 •
EPSS 12.33% Top 10%
Vendor Advisory openbsd.org Vendor Advisory netbsd.org Vendor Advisory openbsd.org Vendor Advisory openbsd.org Vendor Advisory openbsd.org Vendor Advisory vupen.com
Affected: n/a n/a
Published at:
Updated at:

References

Link Tags
http://www.osvdb.org/53608 vdb entry
http://www.openbsd.org/errata43.html#013_pf patch vendor advisory
http://ftp.netbsd.org/pub/NetBSD/security/advisories/NetBSD-SA2009-001.txt.asc vendor advisory
https://www.exploit-db.com/exploits/8406 exploit
https://exchange.xforce.ibmcloud.com/vulnerabilities/49837 vdb entry
http://www.helith.net/txt/multiple_vendor-PF_null_pointer_dereference.txt
http://www.securityfocus.com/archive/1/502634 mailing list
https://www.exploit-db.com/exploits/8581 exploit
http://www.openbsd.org/errata44.html#013_pf patch vendor advisory
http://www.vupen.com/english/advisories/2009/1015 vdb entry patch vendor advisory
ftp://ftp.openbsd.org/pub/OpenBSD/patches/4.3/common/013_pf.patch patch vendor advisory
http://www.openbsd.org/errata45.html#002_pf patch vendor advisory

Frequently Asked Questions

What is the severity of CVE-2009-0687?
CVE-2009-0687 has been scored as a high severity vulnerability.
How to fix CVE-2009-0687?
To fix CVE-2009-0687, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2009-0687 being actively exploited in the wild?
It is possible that CVE-2009-0687 is being exploited or will be exploited in a near future based on public information. According to its EPSS score, there is a ~12% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
This platform uses data from the NIST NVD, MITRE CVE, MITRE CWE, First.org and CISA KEV but is not endorsed or certified by these entities. CVE is a registred trademark of the MITRE Corporation and the authoritative source of CVE content is MITRE's CVE web site. CWE is a registred trademark of the MITRE Corporation and the authoritative source of CWE content is MITRE's CWE web site.
© 2025 Under My Watch. All Rights Reserved.