ID CVE-2009-4020
Summary 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.
References
Vulnerable Configurations
  • cpe:2.3:o:linux:linux_kernel:2.6.32:*:*:*:*:*:*:*
    cpe:2.3:o:linux:linux_kernel:2.6.32:*:*:*:*:*:*:*
CVSS
Base: 7.8 (as of 19-09-2017 - 01:29)
Impact:
Exploitability:
CWE CWE-119
CAPEC
  • Buffer Overflow via Environment Variables
    This attack pattern involves causing a buffer overflow through manipulation of environment variables. Once the attacker finds that they can modify an environment variable, they may try to overflow associated buffers. This attack leverages implicit trust often placed in environment variables.
  • Overflow Buffers
    Buffer Overflow attacks target improper or missing bounds checking on buffer operations, typically triggered by input injected by an attacker. As a consequence, an attacker is able to write past the boundaries of allocated buffer regions in memory, causing a program crash or potentially redirection of execution as per the attackers' choice.
  • Client-side Injection-induced Buffer Overflow
    This type of attack exploits a buffer overflow vulnerability in targeted client software through injection of malicious content from a custom-built hostile service.
  • Filter Failure through Buffer Overflow
    In this attack, the idea is to cause an active filter to fail by causing an oversized transaction. An attacker may try to feed overly long input strings to the program in an attempt to overwhelm the filter (by causing a buffer overflow) and hoping that the filter does not fail securely (i.e. the user input is let into the system unfiltered).
  • MIME Conversion
    An attacker exploits a weakness in the MIME conversion routine to cause a buffer overflow and gain control over the mail server machine. The MIME system is designed to allow various different information formats to be interpreted and sent via e-mail. Attack points exist when data are converted to MIME compatible format and back.
  • Overflow Binary Resource File
    An attack of this type exploits a buffer overflow vulnerability in the handling of binary resources. Binary resources may include music files like MP3, image files like JPEG files, and any other binary file. These attacks may pass unnoticed to the client machine through normal usage of files, such as a browser loading a seemingly innocent JPEG file. This can allow the attacker access to the execution stack and execute arbitrary code in the target process. This attack pattern is a variant of standard buffer overflow attacks using an unexpected vector (binary files) to wrap its attack and open up a new attack vector. The attacker is required to either directly serve the binary content to the victim, or place it in a locale like a MP3 sharing application, for the victim to download. The attacker then is notified upon the download or otherwise locates the vulnerability opened up by the buffer overflow.
  • Buffer Overflow via Symbolic Links
    This type of attack leverages the use of symbolic links to cause buffer overflows. An attacker can try to create or manipulate a symbolic link file such that its contents result in out of bounds data. When the target software processes the symbolic link file, it could potentially overflow internal buffers with insufficient bounds checking.
  • Overflow Variables and Tags
    This type of attack leverages the use of tags or variables from a formatted configuration data to cause buffer overflow. The attacker crafts a malicious HTML page or configuration file that includes oversized strings, thus causing an overflow.
  • Buffer Overflow via Parameter Expansion
    In this attack, the target software is given input that the attacker knows will be modified and expanded in size during processing. This attack relies on the target software failing to anticipate that the expanded data may exceed some internal limit, thereby creating a buffer overflow.
  • Buffer Overflow in an API Call
    This attack targets libraries or shared code modules which are vulnerable to buffer overflow attacks. An attacker who has access to an API may try to embed malicious code in the API function call and exploit a buffer overflow vulnerability in the function's implementation. All clients that make use of the code library thus become vulnerable by association. This has a very broad effect on security across a system, usually affecting more than one software process.
  • Buffer Overflow in Local Command-Line Utilities
    This attack targets command-line utilities available in a number of shells. An attacker can leverage a vulnerability found in a command-line utility to escalate privilege to root.
Access
VectorComplexityAuthentication
NETWORK LOW NONE
Impact
ConfidentialityIntegrityAvailability
NONE NONE COMPLETE
assigner via4 cve@mitre.org
cvss-vector via4 AV:N/AC:L/Au:N/C:N/I:N/A:C
non_vulnerable_configuration via4
    oval via4
    • accepted 2013-04-29T04:01:31.508-04:00
      class vulnerability
      contributors
      • name Aharon Chernin
        organization SCAP.com, LLC
      • name Dragos Prisaca
        organization G2, Inc.
      definition_extensions
      • comment The operating system installed on the system is Red Hat Enterprise Linux 4
        oval oval:org.mitre.oval:def:11831
      • comment CentOS Linux 4.x
        oval oval:org.mitre.oval:def:16636
      • comment Oracle Linux 4.x
        oval oval:org.mitre.oval:def:15990
      • comment The operating system installed on the system is Red Hat Enterprise Linux 5
        oval oval:org.mitre.oval:def:11414
      • comment The operating system installed on the system is CentOS Linux 5.x
        oval oval:org.mitre.oval:def:15802
      • comment Oracle Linux 5.x
        oval oval:org.mitre.oval:def:15459
      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.
      family unix
      id oval:org.mitre.oval:def:10091
      status accepted
      submitted 2010-07-09T03:56:16-04:00
      title 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.
      version 24
    • accepted 2014-01-20T04:01:29.211-05:00
      class vulnerability
      contributors
      • name J. Daniel Brown
        organization DTCC
      • name Chris Coffin
        organization The MITRE Corporation
      definition_extensions
      comment VMware ESX Server 4.0 is installed
      oval oval:org.mitre.oval:def:6293
      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.
      family unix
      id oval:org.mitre.oval:def:6750
      status accepted
      submitted 2010-06-01T17:30:00.000-05:00
      title hfs Subsystem Stack-based Buffer Overflow Vulnerability
      version 8
    redhat via4
    advisories
    • bugzilla
      id 556406
      title kernel: r8169: straighten out overlength frame detection (improved) [rhel-4.9] [rhel-4.8.z]
      oval
      AND
      • comment Red Hat Enterprise Linux 4 is installed
        oval oval:com.redhat.rhba:tst:20070304001
      • OR
        • AND
          • comment kernel is earlier than 0:2.6.9-89.0.20.EL
            oval oval:com.redhat.rhsa:tst:20100076002
          • comment kernel is signed with Red Hat master key
            oval oval:com.redhat.rhba:tst:20070304003
        • AND
          • comment kernel-devel is earlier than 0:2.6.9-89.0.20.EL
            oval oval:com.redhat.rhsa:tst:20100076004
          • comment kernel-devel is signed with Red Hat master key
            oval oval:com.redhat.rhba:tst:20070304005
        • AND
          • comment kernel-doc is earlier than 0:2.6.9-89.0.20.EL
            oval oval:com.redhat.rhsa:tst:20100076022
          • comment kernel-doc is signed with Red Hat master key
            oval oval:com.redhat.rhba:tst:20070304023
        • AND
          • comment kernel-hugemem is earlier than 0:2.6.9-89.0.20.EL
            oval oval:com.redhat.rhsa:tst:20100076020
          • comment kernel-hugemem is signed with Red Hat master key
            oval oval:com.redhat.rhba:tst:20070304021
        • AND
          • comment kernel-hugemem-devel is earlier than 0:2.6.9-89.0.20.EL
            oval oval:com.redhat.rhsa:tst:20100076018
          • comment kernel-hugemem-devel is signed with Red Hat master key
            oval oval:com.redhat.rhba:tst:20070304019
        • AND
          • comment kernel-largesmp is earlier than 0:2.6.9-89.0.20.EL
            oval oval:com.redhat.rhsa:tst:20100076012
          • comment kernel-largesmp is signed with Red Hat master key
            oval oval:com.redhat.rhba:tst:20070304017
        • AND
          • comment kernel-largesmp-devel is earlier than 0:2.6.9-89.0.20.EL
            oval oval:com.redhat.rhsa:tst:20100076008
          • comment kernel-largesmp-devel is signed with Red Hat master key
            oval oval:com.redhat.rhba:tst:20070304013
        • AND
          • comment kernel-smp is earlier than 0:2.6.9-89.0.20.EL
            oval oval:com.redhat.rhsa:tst:20100076014
          • comment kernel-smp is signed with Red Hat master key
            oval oval:com.redhat.rhba:tst:20070304009
        • AND
          • comment kernel-smp-devel is earlier than 0:2.6.9-89.0.20.EL
            oval oval:com.redhat.rhsa:tst:20100076016
          • comment kernel-smp-devel is signed with Red Hat master key
            oval oval:com.redhat.rhba:tst:20070304015
        • AND
          • comment kernel-xenU is earlier than 0:2.6.9-89.0.20.EL
            oval oval:com.redhat.rhsa:tst:20100076006
          • comment kernel-xenU is signed with Red Hat master key
            oval oval:com.redhat.rhba:tst:20070304011
        • AND
          • comment kernel-xenU-devel is earlier than 0:2.6.9-89.0.20.EL
            oval oval:com.redhat.rhsa:tst:20100076010
          • comment kernel-xenU-devel is signed with Red Hat master key
            oval oval:com.redhat.rhba:tst:20070304007
      rhsa
      id RHSA-2010:0076
      released 2010-02-02
      severity Important
      title RHSA-2010:0076: kernel security and bug fix update (Important)
    • rhsa
      id RHSA-2010:0046
    • rhsa
      id RHSA-2010:0095
    rpms
    • kernel-0:2.6.18-164.11.1.el5
    • kernel-PAE-0:2.6.18-164.11.1.el5
    • kernel-PAE-devel-0:2.6.18-164.11.1.el5
    • kernel-debug-0:2.6.18-164.11.1.el5
    • kernel-debug-devel-0:2.6.18-164.11.1.el5
    • kernel-devel-0:2.6.18-164.11.1.el5
    • kernel-doc-0:2.6.18-164.11.1.el5
    • kernel-headers-0:2.6.18-164.11.1.el5
    • kernel-kdump-0:2.6.18-164.11.1.el5
    • kernel-kdump-devel-0:2.6.18-164.11.1.el5
    • kernel-xen-0:2.6.18-164.11.1.el5
    • kernel-xen-devel-0:2.6.18-164.11.1.el5
    • kernel-0:2.6.9-89.0.20.EL
    • kernel-devel-0:2.6.9-89.0.20.EL
    • kernel-doc-0:2.6.9-89.0.20.EL
    • kernel-hugemem-0:2.6.9-89.0.20.EL
    • kernel-hugemem-devel-0:2.6.9-89.0.20.EL
    • kernel-largesmp-0:2.6.9-89.0.20.EL
    • kernel-largesmp-devel-0:2.6.9-89.0.20.EL
    • kernel-smp-0:2.6.9-89.0.20.EL
    • kernel-smp-devel-0:2.6.9-89.0.20.EL
    • kernel-xenU-0:2.6.9-89.0.20.EL
    • kernel-xenU-devel-0:2.6.9-89.0.20.EL
    refmap via4
    confirm
    debian DSA-2005
    mlist
    • [linux-mm-commits] 20091203 + hfs-fix-a-potential-buffer-overflow.patch added to -mm tree
    • [oss-security] 20091204 CVE-2009-4020 kernel: hfs buffer overflow
    secunia
    • 38276
    • 39742
    suse
    • SUSE-SA:2010:005
    • SUSE-SA:2010:019
    • SUSE-SA:2010:023
    statements via4
    contributor Mark J Cox
    lastmodified 2010-02-04
    organization Red Hat
    statement 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.
    vulnerable_product via4
      Last major update 19-09-2017 - 01:29
      Published 04-12-2009 - 21:30
      Back to Top