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    CVE-2015-8953

    fs/overlayfs/copy_up.c in the Linux kernel before 4.2.6 uses an incorrect cleanup code path, which allows local users to cause a denial of service (dentry reference leak) via filesystem operations on a large file in a lower overlayfs layer.

    Published:Aug 23, 2016
    Last Modified:Apr 12, 2025
    EPS:Oct 16, 2016
    EPSS Score:0.00071
    CVSS Score:5.5

    Affected Products

    Vendor
    Linux
    Product
    Linux Kernel

    Exploits

    http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=ab79efab0a0ba01a74df782eb7fa44b044dae8b5http://www.openwall.com/lists/oss-security/2016/08/23/9http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=ab79efab0a0ba01a74df782eb7fa44b044dae8b5http://www.openwall.com/lists/oss-security/2016/08/23/9

    Common Attack Pattern Enumeration and Classification (CAPEC)

    CAPEC-469 HTTP DoS

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    References

    http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=ab79efab0a0ba01a74df782eb7fa44b044dae8b5
    http://www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.2.6
    http://www.openwall.com/lists/oss-security/2016/08/23/9
    http://www.securityfocus.com/bid/92611
    https://bugzilla.redhat.com/show_bug.cgi?id=1367814
    https://github.com/torvalds/linux/commit/ab79efab0a0ba01a74df782eb7fa44b044dae8b5
    http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=ab79efab0a0ba01a74df782eb7fa44b044dae8b5
    http://www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.2.6
    http://www.openwall.com/lists/oss-security/2016/08/23/9
    http://www.securityfocus.com/bid/92611
    https://bugzilla.redhat.com/show_bug.cgi?id=1367814
    https://github.com/torvalds/linux/commit/ab79efab0a0ba01a74df782eb7fa44b044dae8b5

    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