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    CVE-2015-8872

    The set_fat function in fat.c in dosfstools before 4.0 might allow attackers to corrupt a FAT12 filesystem or cause a denial of service (invalid memory read and crash) by writing an odd number of clusters to the third to last entry on a FAT12 filesystem, which triggers an "off-by-two error."

    Published:May 14, 2016
    Last Modified:Apr 12, 2025
    EPS:Jun 3, 2016
    EPSS Score:0.00091
    CVSS Score:6.2

    Affected Products

    Vendor
    Canonical
    Product
    Ubuntu Linux
    Vendor
    Dosfstools Project
    Product
    Dosfstools
    Vendor
    Opensuse
    Product
    Leap
    Vendor
    Opensuse
    Product
    Opensuse

    Exploits

    No exploit reference

    Common Weakness Enumeration

    CWE-193 Off-by-one Error

    Common Attack Pattern Enumeration and Classification (CAPEC)

    No CAPEC recorded yet

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    References

    http://lists.opensuse.org/opensuse-updates/2016-06/msg00001.html
    http://lists.opensuse.org/opensuse-updates/2016-09/msg00014.html
    http://www.securityfocus.com/bid/90311
    http://www.ubuntu.com/usn/USN-2986-1
    https://blog.fuzzing-project.org/44-dosfstools-fsck.vfat-Several-invalid-memory-accesses.html
    https://github.com/dosfstools/dosfstools/commit/07908124838afcc99c577d1d3e84cef2dbd39cb7
    https://github.com/dosfstools/dosfstools/issues/12
    https://github.com/dosfstools/dosfstools/releases/tag/v4.0
    https://lists.debian.org/debian-lts-announce/2020/05/msg00028.html
    http://lists.opensuse.org/opensuse-updates/2016-06/msg00001.html
    http://lists.opensuse.org/opensuse-updates/2016-09/msg00014.html
    http://www.securityfocus.com/bid/90311
    http://www.ubuntu.com/usn/USN-2986-1
    https://blog.fuzzing-project.org/44-dosfstools-fsck.vfat-Several-invalid-memory-accesses.html
    https://github.com/dosfstools/dosfstools/commit/07908124838afcc99c577d1d3e84cef2dbd39cb7
    https://github.com/dosfstools/dosfstools/issues/12
    https://github.com/dosfstools/dosfstools/releases/tag/v4.0
    https://lists.debian.org/debian-lts-announce/2020/05/msg00028.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