CVE-2015-8660

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    CVE-2015-8660

    Published: 28 Dec 2015Last Modified: 16 Apr 2026

    Summary:

    Details: The ovl_setattr function in fs/overlayfs/inode.c in the Linux kernel through 4.3.3 attempts to merge distinct setattr operations, which allows local users to bypass intended access restrictions and modify the attributes of arbitrary overlay files via a crafted application.

    References: http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=acff81ec2c79492b180fade3c2894425cd35a545, http://lists.opensuse.org/opensuse-security-announce/2016-03/msg00039.html, http://lists.opensuse.org/opensuse-security-announce/2016-03/msg00040.html, http://lists.opensuse.org/opensuse-security-announce/2016-03/msg00043.html, http://packetstormsecurity.com/files/135151/Ubuntu-14.04-LTS-15.10-overlayfs-Local-Root.html, http://rhn.redhat.com/errata/RHSA-2016-1532.html, http://rhn.redhat.com/errata/RHSA-2016-1539.html, http://rhn.redhat.com/errata/RHSA-2016-1541.html, http://www.openwall.com/lists/oss-security/2015/12/23/5, http://www.oracle.com/technetwork/topics/security/linuxbulletinjul2016-3090544.html, http://www.oracle.com/technetwork/topics/security/ovmbulletinjul2016-3090546.html, http://www.securityfocus.com/bid/79671, http://www.securitytracker.com/id/1034548, http://www.ubuntu.com/usn/USN-2857-1, http://www.ubuntu.com/usn/USN-2857-2, http://www.ubuntu.com/usn/USN-2858-1, http://www.ubuntu.com/usn/USN-2858-2, http://www.ubuntu.com/usn/USN-2858-3, https://bugzilla.redhat.com/show_bug.cgi?id=1291329, https://github.com/torvalds/linux/commit/acff81ec2c79492b180fade3c2894425cd35a545, https://www.exploit-db.com/exploits/39166/, https://www.exploit-db.com/exploits/39230/, https://www.exploit-db.com/exploits/40688/, http://lists.opensuse.org/opensuse-security-announce/2016-03/msg00039.html, http://lists.opensuse.org/opensuse-security-announce/2016-03/msg00040.html, http://lists.opensuse.org/opensuse-security-announce/2016-03/msg00043.html, http://www.openwall.com/lists/oss-security/2015/12/23/5, https://bugzilla.redhat.com/show_bug.cgi?id=1291329

    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