CVE-2015-8872

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    CVE-2015-8872

    Published: 3 Jun 2016Last Modified: 16 Apr 2026

    Summary:

    Details: 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."

    References: 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/issues/12, https://github.com/dosfstools/dosfstools/commit/07908124838afcc99c577d1d3e84cef2dbd39cb7, https://github.com/dosfstools/dosfstools/releases/tag/v4.0, 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, https://lists.debian.org/debian-lts-announce/2020/05/msg00028.html

    Affected packages

    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
    CVE-2015-8872 | CVE-DB