National Vulnerability Database

National Vulnerability Database

National Vulnerability
Database

CVE-2009-4020 Detail

Description

Stack-based buffer overflow in the hfs subsystem in the Linux kernel 2.6.32 allows remote attackers to have an unspecified impact via a crafted Hierarchical File System (HFS) filesystem, related to the hfs_readdir function in fs/hfs/dir.c.

Source:  MITRE      Last Modified:  12/04/2009

Quick Info

CVE Dictionary Entry:
CVE-2009-4020
Original release date:
12/04/2009
Last revised:
09/18/2017
Source:
US-CERT/NIST

Impact

CVSS Severity (version 2.0):
CVSS v2 Base Score:
7.8 HIGH
Vector:
(AV:N/AC:L/Au:N/C:N/I:N/A:C) (legend)
Impact Subscore:
6.9
Exploitability Subscore:
10.0
CVSS Version 2 Metrics:
Access Vector:
Network exploitable
Access Complexity:
Low
Authentication:
Not required to exploit
Impact Type:
Allows disruption of service

Vendor Statements (disclaimer)

Official Statement from Red Hat (02/04/2010)

This issue did not affect the version of the Linux kernel as shipped with Red Hat Enterprise MRG as the affected driver is not enabled in this kernel. It was addressed in Red Hat Enterprise Linux 4 and 5 via https://rhn.redhat.com/errata/RHSA-2010-0076.html and https://rhn.redhat.com/errata/RHSA-2010-0046.html respectively. Red Hat Enterprise Linux 3 is now in Production 3 of the maintenance life-cycle, http://www.redhat.com/security/updates/errata, and this issue is rated as having low impact, therefore the fix for this issue is not currently planned to be included in the future updates.

References to Advisories, Solutions, and Tools

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Hyperlink Resource Type Source Name
http://lists.opensuse.org/opensuse-security-announce/2010-01/msg00005.html External Source SUSE SUSE-SA:2010:005
http://lists.opensuse.org/opensuse-security-announce/2010-03/msg00007.html External Source SUSE SUSE-SA:2010:019
http://marc.info/?l=linux-mm-commits&m=125987755823047&w=2 External Source MLIST [linux-mm-commits] 20091203 + hfs-fix-a-potential-buffer-overflow.patch added to -mm tree
http://support.avaya.com/css/P8/documents/100073666 External Source CONFIRM http://support.avaya.com/css/P8/documents/100073666
http://userweb.kernel.org/~akpm/mmotm/broken-out/hfs-fix-a-potential-buffer-overflow.patch Patch External Source CONFIRM http://userweb.kernel.org/~akpm/mmotm/broken-out/hfs-fix-a-potential-buffer-overflow.patch
http://www.debian.org/security/2010/dsa-2005 External Source DEBIAN DSA-2005
http://www.novell.com/linux/security/advisories/2010_23_kernel.html External Source SUSE SUSE-SA:2010:023
http://www.openwall.com/lists/oss-security/2009/12/04/1 External Source MLIST [oss-security] 20091204 CVE-2009-4020 kernel: hfs buffer overflow
https://bugzilla.redhat.com/show_bug.cgi?id=540736 External Source CONFIRM https://bugzilla.redhat.com/show_bug.cgi?id=540736
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A10091 External Source OVAL oval:org.mitre.oval:def:10091
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A6750 External Source OVAL oval:org.mitre.oval:def:6750
https://rhn.redhat.com/errata/RHSA-2010-0046.html External Source REDHAT RHSA-2010:0046
https://rhn.redhat.com/errata/RHSA-2010-0095.html External Source REDHAT RHSA-2010:0095

References to Check Content

Identifier:
oval:org.mitre.oval:def:10091
Check System:
http://oval.mitre.org/XMLSchema/oval-definitions-5
Hyperlink:
http://oval.mitre.org/repository/data/DownloadDefinition?id=oval:org.mitre.oval:def:10091
Identifier:
oval:org.mitre.oval:def:6750
Check System:
http://oval.mitre.org/XMLSchema/oval-definitions-5
Hyperlink:
http://oval.mitre.org/repository/data/DownloadDefinition?id=oval:org.mitre.oval:def:6750

Technical Details

Vulnerability Type (View All)

Vulnerable software and versions Switch to CPE 2.2

Configuration 1
OR
cpe:2.3:o:linux:linux_kernel:2.6.32:*:*:*:*:*:*:*

Denotes Vulnerable Software
Are we missing a CPE here? Please let us know.

Change History 2 change records found - show changes