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    CVE-2009-0747

    The ext4_isize function in fs/ext4/ext4.h in the Linux kernel 2.6.27 before 2.6.27.19 and 2.6.28 before 2.6.28.7 uses the i_size_high structure member during operations on arbitrary types of files, which allows local users to cause a denial of service (CPU consumption and error-message flood) by attempting to mount a crafted ext4 filesystem.

    Published:Jan 7, 2009
    Last Modified:Apr 23, 2026
    EPS:Feb 27, 2009
    EPSS Score:0.00096
    CVSS Score:4.9

    Affected Products

    Vendor
    Linux
    Product
    Linux Kernel
    Vendor
    Redhat
    Product
    Enterprise Linux

    Exploits

    No exploit reference

    Common Weakness Enumeration

    No CWE recorded yet

    Common Attack Pattern Enumeration and Classification (CAPEC)

    No CAPEC recorded yet

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    References

    http://bugzilla.kernel.org/show_bug.cgi?id=12375
    http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=06a279d636734da32bb62dd2f7b0ade666f65d7c
    http://kernel.org/pub/linux/kernel/v2.6/ChangeLog-2.6.27.19
    http://kernel.org/pub/linux/kernel/v2.6/ChangeLog-2.6.28.7
    http://rhn.redhat.com/errata/RHSA-2009-1243.html
    http://secunia.com/advisories/34394
    http://secunia.com/advisories/36562
    http://secunia.com/advisories/37471
    http://www.debian.org/security/2009/dsa-1749
    http://www.securityfocus.com/archive/1/507985/100/0/threaded
    http://www.ubuntu.com/usn/usn-751-1
    http://www.vmware.com/security/advisories/VMSA-2009-0016.html
    http://www.vupen.com/english/advisories/2009/0509
    http://www.vupen.com/english/advisories/2009/3316
    https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A8585
    https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A9200
    http://bugzilla.kernel.org/show_bug.cgi?id=12375
    http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=06a279d636734da32bb62dd2f7b0ade666f65d7c
    http://kernel.org/pub/linux/kernel/v2.6/ChangeLog-2.6.27.19
    http://kernel.org/pub/linux/kernel/v2.6/ChangeLog-2.6.28.7
    http://rhn.redhat.com/errata/RHSA-2009-1243.html
    http://secunia.com/advisories/34394
    http://secunia.com/advisories/36562
    http://secunia.com/advisories/37471
    http://www.debian.org/security/2009/dsa-1749
    http://www.securityfocus.com/archive/1/507985/100/0/threaded
    http://www.ubuntu.com/usn/usn-751-1
    http://www.vmware.com/security/advisories/VMSA-2009-0016.html
    http://www.vupen.com/english/advisories/2009/0509
    http://www.vupen.com/english/advisories/2009/3316
    https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A8585
    https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A9200

    Common Vulnerability Scoring System

    Attack Vector
    Network
    Adjacent
    Local
    Physical
    Privileges Required
    None
    Low
    High
    User Interaction
    None
    Required
    Scope
    Unchanged
    Changed
    Confidentiality
    None
    Low
    High
    Integrity
    None
    Low
    High
    Availability
    None
    Low
    High