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    CVE-2018-5344

    In the Linux kernel through 4.14.13, drivers/block/loop.c mishandles lo_release serialization, which allows attackers to cause a denial of service (__lock_acquire use-after-free) or possibly have unspecified other impact.

    Published:Jan 6, 2018
    Last Modified:Nov 21, 2024
    EPS:Jan 12, 2018
    EPSS Score:0.00043
    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 Workstation
    Vendor
    Redhat
    Product
    Rhel Extras Rt
    Vendor
    Redhat
    Product
    Virtualization

    Exploits

    No exploit reference

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    CVE-2026-47336 (CVSS 3.3) — Ubuntu Linux 6.8 contains SAUCE patches with a possible use of an uninitialized variable in AppArmor AF_INET/A…
    CVE-2026-47335 (CVSS 5.5) — Ubuntu Linux 6.8 contains SAUCE patches with a possible NULL pointer dereference in the handling of AppArmor n…
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    References

    http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=ae6650163c66a7eff1acd6eb8b0f752dcfa8eba5
    http://www.securityfocus.com/bid/102503
    https://access.redhat.com/errata/RHSA-2018:2948
    https://access.redhat.com/errata/RHSA-2018:3083
    https://access.redhat.com/errata/RHSA-2018:3096
    https://github.com/torvalds/linux/commit/ae6650163c66a7eff1acd6eb8b0f752dcfa8eba5
    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/
    http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=ae6650163c66a7eff1acd6eb8b0f752dcfa8eba5
    http://www.securityfocus.com/bid/102503
    https://access.redhat.com/errata/RHSA-2018:2948
    https://access.redhat.com/errata/RHSA-2018:3083
    https://access.redhat.com/errata/RHSA-2018:3096
    https://github.com/torvalds/linux/commit/ae6650163c66a7eff1acd6eb8b0f752dcfa8eba5
    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/

    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