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…
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (9.52%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a 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.
- CVSS 2.0
- 7.8 HIGHAV:N/AC:L/Au:N/C:N/I:N/A:C
- EPSS
- 9.52% probability · 95th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-399
- Affected
- midnightbsd/midnightbsd · mirbsd/miros · netbsd/netbsd · openbsd/openbsd
- Source
- cret@cert.org
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
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.