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    CVE-2009-4131

    The EXT4_IOC_MOVE_EXT (aka move extents) ioctl implementation in the ext4 filesystem in the Linux kernel before 2.6.32-git6 allows local users to overwrite arbitrary files via a crafted request, related to insufficient checks for file permissions.

    Published:Dec 9, 2009
    Last Modified:Apr 23, 2026
    EPS:Dec 13, 2009
    EPSS Score:0.00084
    CVSS Score:7.2

    Affected Products

    Vendor
    Linux
    Product
    Linux Kernel

    Exploits

    https://www.exploit-db.com/exploits/33395

    Common Weakness Enumeration

    CWE-863 Incorrect Authorization

    Common Attack Pattern Enumeration and Classification (CAPEC)

    No CAPEC recorded yet

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    References

    http://git.kernel.org/?p=linux/kernel/git/tytso/ext4.git%3Ba=commit%3Bh=4a58579b9e4e2a35d57e6c9c8483e52f6f1b7fd6
    http://lists.opensuse.org/opensuse-security-announce/2010-01/msg00000.html
    http://lkml.org/lkml/2009/12/9/255
    http://secunia.com/advisories/37658
    http://secunia.com/advisories/37686
    http://secunia.com/advisories/38017
    http://www.kernel.org/pub/linux/kernel/v2.6/snapshots/patch-2.6.32-git6.log
    http://www.mandriva.com/security/advisories?name=MDVSA-2009:329
    http://www.securityfocus.com/bid/37277
    http://www.theregister.co.uk/2009/12/11/linux_kernel_bugs_patched/
    http://www.ubuntu.com/usn/USN-869-1
    http://www.vupen.com/english/advisories/2009/3468
    https://bugzilla.redhat.com/show_bug.cgi?id=544471
    https://www.redhat.com/archives/fedora-package-announce/2009-December/msg00702.html
    http://git.kernel.org/?p=linux/kernel/git/tytso/ext4.git%3Ba=commit%3Bh=4a58579b9e4e2a35d57e6c9c8483e52f6f1b7fd6
    http://lists.opensuse.org/opensuse-security-announce/2010-01/msg00000.html
    http://lkml.org/lkml/2009/12/9/255
    http://secunia.com/advisories/37658
    http://secunia.com/advisories/37686
    http://secunia.com/advisories/38017
    http://www.kernel.org/pub/linux/kernel/v2.6/snapshots/patch-2.6.32-git6.log
    http://www.mandriva.com/security/advisories?name=MDVSA-2009:329
    http://www.securityfocus.com/bid/37277
    http://www.theregister.co.uk/2009/12/11/linux_kernel_bugs_patched/
    http://www.ubuntu.com/usn/USN-869-1
    http://www.vupen.com/english/advisories/2009/3468
    https://bugzilla.redhat.com/show_bug.cgi?id=544471
    https://www.redhat.com/archives/fedora-package-announce/2009-December/msg00702.html

    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