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Last updated: 5/4/2016 5:45:23 AM

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National Cyber Awareness System

Vulnerability Summary for CVE-2009-0692

Original release date: 07/14/2009
Last revised: 08/21/2010


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.


CVSS Severity (version 2.0):
CVSS v2 Base Score: 10.0 HIGH
Impact Subscore: 10.0
Exploitability Subscore: 10.0
CVSS Version 2 Metrics:
Access Vector: Network exploitable
Access Complexity: Low
Authentication: 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: https://rhn.redhat.com/errata/CVE-2009-0692.html 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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External Source: FEDORA
Name: FEDORA-2009-8344
External Source: DEBIAN
Name: DSA-1833
External Source: REDHAT
Name: RHSA-2009:1154
External Source: UBUNTU
Name: USN-803-1
External Source: OVAL
Name: oval:org.mitre.oval:def:10758
External Source: SECTRACK
Name: 1022548
External Source: FEDORA
Name: FEDORA-2009-9075
External Source: GENTOO
Name: GLSA-200907-12
External Source: VUPEN
Name: ADV-2009-1891
External Source: CONFIRM
Name: https://bugzilla.redhat.com/show_bug.cgi?id=507717
External Source: BID
Name: 35668
External Source: REDHAT
Name: RHSA-2009:1136
External Source: NETBSD
Name: NetBSD-SA2009-010
External Source: HP
Name: SSRT100018
US-CERT Vulnerability Note: CERT-VN
Name: VU#410676
External Source: VUPEN
Name: ADV-2010-1796
External Source: CONFIRM
Name: https://www.isc.org/node/468
Type: Advisory; Patch Information
External Source: MANDRIVA
Name: MDVSA-2009:151
External Source: SLACKWARE
Name: SSA:2009-195-01
External Source: CONFIRM
Name: https://www.isc.org/downloadables/12
External Source: SUSE
Name: SUSE-SA:2009:037
External Source: OSVDB
Name: 55819
External Source: OVAL
Name: oval:org.mitre.oval:def:5941

References to Check Content

Identifier: oval:org.mitre.oval:def:10758
Check System: http://oval.mitre.org/XMLSchema/oval-definitions-5
Identifier: oval:org.mitre.oval:def:5941
Check System: http://oval.mitre.org/XMLSchema/oval-definitions-5

Technical Details

Vulnerability Type (View All)