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    CVE-2017-17450

    net/netfilter/xt_osf.c in the Linux kernel through 4.14.4 does not require the CAP_NET_ADMIN capability for add_callback and remove_callback operations, which allows local users to bypass intended access restrictions because the xt_osf_fingers data structure is shared across all net namespaces.

    Published:Dec 5, 2017
    Last Modified:Apr 20, 2025
    EPS:Dec 7, 2017
    EPSS Score:0.00054
    CVSS Score:7.8

    Affected Products

    Vendor
    Linux
    Product
    Linux Kernel

    Exploits

    No exploit reference

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    References

    http://lists.opensuse.org/opensuse-security-announce/2018-01/msg00007.html
    http://www.securityfocus.com/bid/102110
    https://lkml.org/lkml/2017/12/5/982
    https://usn.ubuntu.com/3583-1/
    https://usn.ubuntu.com/3583-2/
    https://usn.ubuntu.com/3617-1/
    https://usn.ubuntu.com/3617-2/
    https://usn.ubuntu.com/3617-3/
    https://usn.ubuntu.com/3619-1/
    https://usn.ubuntu.com/3619-2/
    https://usn.ubuntu.com/3632-1/
    https://www.debian.org/security/2017/dsa-4073
    https://www.debian.org/security/2018/dsa-4082
    http://lists.opensuse.org/opensuse-security-announce/2018-01/msg00007.html
    http://www.securityfocus.com/bid/102110
    https://lkml.org/lkml/2017/12/5/982
    https://usn.ubuntu.com/3583-1/
    https://usn.ubuntu.com/3583-2/
    https://usn.ubuntu.com/3617-1/
    https://usn.ubuntu.com/3617-2/
    https://usn.ubuntu.com/3617-3/
    https://usn.ubuntu.com/3619-1/
    https://usn.ubuntu.com/3619-2/
    https://usn.ubuntu.com/3632-1/
    https://www.debian.org/security/2017/dsa-4073
    https://www.debian.org/security/2018/dsa-4082

    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