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    CVE-2018-18445

    In the Linux kernel 4.14.x, 4.15.x, 4.16.x, 4.17.x, and 4.18.x before 4.18.13, faulty computation of numeric bounds in the BPF verifier permits out-of-bounds memory accesses because adjust_scalar_min_max_vals in kernel/bpf/verifier.c mishandles 32-bit right shifts.

    Published:Oct 5, 2018
    Last Modified:Nov 21, 2024
    EPS:Oct 17, 2018
    EPSS Score:0.00044
    CVSS Score:7.8

    Affected Products

    Vendor
    Canonical
    Product
    Ubuntu Linux
    Vendor
    Linux
    Product
    Linux Kernel
    Vendor
    Redhat
    Product
    Enterprise Linux
    Vendor
    Redhat
    Product
    Enterprise Linux Desktop
    Vendor
    Redhat
    Product
    Enterprise Linux Server
    Vendor
    Redhat
    Product
    Enterprise Linux Server Aus
    Vendor
    Redhat
    Product
    Enterprise Linux Server Eus
    Vendor
    Redhat
    Product
    Enterprise Linux Server Tus
    Vendor
    Redhat
    Product
    Enterprise Linux Workstation
    Vendor
    Redhat
    Product
    Rhel Extras Rt

    Exploits

    No exploit reference

    Common Weakness Enumeration

    CWE-125 Out-of-bounds Read

    Common Attack Pattern Enumeration and Classification (CAPEC)

    CAPEC-540 Overread Buffers

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    References

    http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=b799207e1e1816b09e7a5920fbb2d5fcf6edd681
    https://access.redhat.com/errata/RHSA-2019:0512
    https://access.redhat.com/errata/RHSA-2019:0514
    https://bugs.chromium.org/p/project-zero/issues/detail?id=1686
    https://cdn.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.14.75
    https://cdn.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.18.13
    https://github.com/torvalds/linux/commit/b799207e1e1816b09e7a5920fbb2d5fcf6edd681
    https://support.f5.com/csp/article/K38456756
    https://usn.ubuntu.com/3832-1/
    https://usn.ubuntu.com/3835-1/
    https://usn.ubuntu.com/3847-1/
    https://usn.ubuntu.com/3847-2/
    https://usn.ubuntu.com/3847-3/
    http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=b799207e1e1816b09e7a5920fbb2d5fcf6edd681
    https://access.redhat.com/errata/RHSA-2019:0512
    https://access.redhat.com/errata/RHSA-2019:0514
    https://bugs.chromium.org/p/project-zero/issues/detail?id=1686
    https://cdn.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.14.75
    https://cdn.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.18.13
    https://github.com/torvalds/linux/commit/b799207e1e1816b09e7a5920fbb2d5fcf6edd681
    https://support.f5.com/csp/article/K38456756
    https://usn.ubuntu.com/3832-1/
    https://usn.ubuntu.com/3835-1/
    https://usn.ubuntu.com/3847-1/
    https://usn.ubuntu.com/3847-2/
    https://usn.ubuntu.com/3847-3/

    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