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    CVE-2018-14734

    drivers/infiniband/core/ucma.c in the Linux kernel through 4.17.11 allows ucma_leave_multicast to access a certain data structure after a cleanup step in ucma_process_join, which allows attackers to cause a denial of service (use-after-free).

    Published:Jun 1, 2018
    Last Modified:Nov 21, 2024
    EPS:Jul 29, 2018
    EPSS Score:0.00114
    CVSS Score:7.8

    Affected Products

    Vendor
    Canonical
    Product
    Ubuntu Linux
    Vendor
    Debian
    Product
    Debian Linux
    Vendor
    Linux
    Product
    Linux Kernel
    Vendor
    Redhat
    Product
    Enterprise Linux
    Vendor
    Redhat
    Product
    Rhel Extras Rt

    Exploits

    No exploit reference

    Common Weakness Enumeration

    CWE-416 Use After Free

    Common Attack Pattern Enumeration and Classification (CAPEC)

    No CAPEC recorded yet

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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…
    CVE-2026-47334 (CVSS 5.5) — Ubuntu Linux 6.8, 6.17 and 7.0 contain AppArmor SAUCE patches which incorrectly sleep while holding a spinlock…
    CVE-2026-47333 (CVSS 7.8) — Ubuntu Linux 6.8, 6.17 and 7.0 contain AppArmor SAUCE patches which can potentially incorrectly compute the si…
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    References

    http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=cb2595c1393b4a5211534e6f0a0fbad369e21ad8
    https://access.redhat.com/errata/RHSA-2019:0831
    https://access.redhat.com/errata/RHSA-2019:2029
    https://access.redhat.com/errata/RHSA-2019:2043
    https://github.com/torvalds/linux/commit/cb2595c1393b4a5211534e6f0a0fbad369e21ad8
    https://lists.debian.org/debian-lts-announce/2018/10/msg00003.html
    https://usn.ubuntu.com/3797-1/
    https://usn.ubuntu.com/3797-2/
    https://usn.ubuntu.com/3847-1/
    https://usn.ubuntu.com/3847-2/
    https://usn.ubuntu.com/3847-3/
    https://usn.ubuntu.com/3849-1/
    https://usn.ubuntu.com/3849-2/
    https://www.debian.org/security/2018/dsa-4308
    http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=cb2595c1393b4a5211534e6f0a0fbad369e21ad8
    https://access.redhat.com/errata/RHSA-2019:0831
    https://access.redhat.com/errata/RHSA-2019:2029
    https://access.redhat.com/errata/RHSA-2019:2043
    https://github.com/torvalds/linux/commit/cb2595c1393b4a5211534e6f0a0fbad369e21ad8
    https://lists.debian.org/debian-lts-announce/2018/10/msg00003.html
    https://usn.ubuntu.com/3797-1/
    https://usn.ubuntu.com/3797-2/
    https://usn.ubuntu.com/3847-1/
    https://usn.ubuntu.com/3847-2/
    https://usn.ubuntu.com/3847-3/
    https://usn.ubuntu.com/3849-1/
    https://usn.ubuntu.com/3849-2/
    https://www.debian.org/security/2018/dsa-4308

    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