CVE-2009-0687: Null Pointer Dereference
First published: Tue Aug 11 2009(Updated: )
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.
Credit: cret@cert.org
| Affected Software | Affected Version | How to fix |
|---|---|---|
| OpenBSD | =4.4 | |
| MirOS BSD | <=10 | |
| NetBSD NetBSD | =5.0 | |
| MidnightBSD | =0.3-current | |
| OpenBSD | =4.5 | |
| OpenBSD | =4.2 | |
| OpenBSD | =4.3 |
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Reference Links
- http://www.vupen.com/english/advisories/2009/1015
- http://www.openbsd.org/errata45.html#002_pf
- http://www.helith.net/txt/multiple_vendor-PF_null_pointer_dereference.txt
- http://www.securityfocus.com/archive/1/502634
- http://www.osvdb.org/53608
- http://ftp.netbsd.org/pub/NetBSD/security/advisories/NetBSD-SA2009-001.txt.asc
- http://www.openbsd.org/errata44.html#013_pf
- http://www.openbsd.org/errata43.html#013_pf
- https://exchange.xforce.ibmcloud.com/vulnerabilities/49837
- https://www.exploit-db.com/exploits/8581
- https://www.exploit-db.com/exploits/8406
Frequently Asked Questions
What is the severity of CVE-2009-0687?
CVE-2009-0687 is classified as a high severity vulnerability due to its potential to cause denial of service by exploiting a NULL pointer dereference.
What systems are affected by CVE-2009-0687?
CVE-2009-0687 affects OpenBSD versions 4.2 through 4.5, NetBSD 5.0 before RC3, MirOS 10 and earlier, and MidnightBSD 0.3-current.
How do I fix CVE-2009-0687?
To fix CVE-2009-0687, upgrade to a patched version of OpenBSD, NetBSD, MirOS, or MidnightBSD that addresses this vulnerability.
What type of attack does CVE-2009-0687 enable?
CVE-2009-0687 enables remote attackers to launch a denial of service attack via crafted IP packets.
When was CVE-2009-0687 discovered?
CVE-2009-0687 was disclosed in 2009, highlighting a significant vulnerability in the OpenBSD Packet Filter.
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- vendor/mirbsd
- canonical/miros bsd
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- vendor/netbsd
- canonical/netbsd netbsd
- version/netbsd netbsd/5.0
- vendor/midnightbsd
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- version/openbsd/4.5
- version/openbsd/4.2
- version/openbsd/4.3