National Vulnerability Database

National Vulnerability Database

National Vulnerability

CVE-2009-0692 Detail


Stack-based buffer overflow in the script_write_params method in client/dhclient.c in ISC DHCP dhclient 4.1 before 4.1.0p1, 4.0 before 4.0.1p1, 3.1 before 3.1.2p1, 3.0, and 2.0 allows remote DHCP servers to execute arbitrary code via a crafted subnet-mask option.

Source:  MITRE      Last Modified:  07/14/2009

Quick Info

CVE Dictionary Entry:
Original release date:
Last revised:


CVSS Severity (version 2.0):
CVSS v2 Base Score:
10.0 HIGH
(AV:N/AC:L/Au:N/C:C/I:C/A:C) (legend)
Impact Subscore:
Exploitability Subscore:
CVSS Version 2 Metrics:
Access Vector:
Network exploitable
Access Complexity:
Not required to exploit
Impact Type:
Allows unauthorized disclosure of information; Allows unauthorized modification; Allows disruption of service

Vendor Statements (disclaimer)

Official Statement from Red Hat (07/16/2009)

This issue affected the dhcp packages as shipped with Red Hat Enterprise Linux 3 and 4. Updated packages to correct this issue are available via Red Hat Network: This issue did not affect the dhcp packages as shipped with Red Hat Enterprise Linux 5 due to the use of FORTIFY_SOURCE protection mechanism that changes the exploitability of the issue into a controlled application termination.

References to Advisories, Solutions, and Tools

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Hyperlink Resource Type Source Name External Source NETBSD NetBSD-SA2009-010 External Source HP SSRT100018 External Source SUSE SUSE-SA:2009:037 External Source GENTOO GLSA-200907-12 External Source SLACKWARE SSA:2009-195-01 External Source DEBIAN DSA-1833 US Government Resource External Source CERT-VN VU#410676 External Source MANDRIVA MDVSA-2009:151 External Source REDHAT RHSA-2009:1136 External Source REDHAT RHSA-2009:1154 External Source BID 35668 External Source SECTRACK 1022548 External Source UBUNTU USN-803-1 External Source VUPEN ADV-2009-1891 External Source VUPEN ADV-2010-1796 External Source CONFIRM External Source OVAL oval:org.mitre.oval:def:10758 External Source OVAL oval:org.mitre.oval:def:5941 External Source CONFIRM Patch; Vendor Advisory External Source CONFIRM External Source FEDORA FEDORA-2009-8344 External Source FEDORA FEDORA-2009-9075

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Technical Details

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Change History 3 change records found - show changes