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    CVE-2019-12818

    An issue was discovered in the Linux kernel before 4.20.15. The nfc_llcp_build_tlv function in net/nfc/llcp_commands.c may return NULL. If the caller does not check for this, it will trigger a NULL pointer dereference. This will cause denial of service. This affects nfc_llcp_build_gb in net/nfc/llcp_core.c.

    Published:Jun 13, 2019
    Last Modified:Nov 21, 2024
    EPS:Jun 14, 2019
    EPSS Score:0.05643
    CVSS Score:7.5

    Affected Products

    Vendor
    Linux
    Product
    Linux Kernel

    Exploits

    No exploit reference

    Common Weakness Enumeration

    CWE-476 NULL Pointer Dereference

    Common Attack Pattern Enumeration and Classification (CAPEC)

    No CAPEC recorded yet

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    References

    http://lists.opensuse.org/opensuse-security-announce/2019-06/msg00039.html
    http://lists.opensuse.org/opensuse-security-announce/2019-06/msg00040.html
    http://lists.opensuse.org/opensuse-security-announce/2019-06/msg00048.html
    http://packetstormsecurity.com/files/154245/Kernel-Live-Patch-Security-Notice-LSN-0054-1.html
    http://www.securityfocus.com/bid/108776
    https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=58bdd544e2933a21a51eecf17c3f5f94038261b5
    https://github.com/torvalds/linux/commit/58bdd544e2933a21a51eecf17c3f5f94038261b5
    https://security.netapp.com/advisory/ntap-20190710-0002/
    https://support.f5.com/csp/article/K91444306
    https://usn.ubuntu.com/4094-1/
    https://usn.ubuntu.com/4118-1/
    https://www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.20.15
    http://lists.opensuse.org/opensuse-security-announce/2019-06/msg00039.html
    http://lists.opensuse.org/opensuse-security-announce/2019-06/msg00040.html
    http://lists.opensuse.org/opensuse-security-announce/2019-06/msg00048.html
    http://packetstormsecurity.com/files/154245/Kernel-Live-Patch-Security-Notice-LSN-0054-1.html
    http://www.securityfocus.com/bid/108776
    https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=58bdd544e2933a21a51eecf17c3f5f94038261b5
    https://github.com/torvalds/linux/commit/58bdd544e2933a21a51eecf17c3f5f94038261b5
    https://security.netapp.com/advisory/ntap-20190710-0002/
    https://support.f5.com/csp/article/K91444306
    https://usn.ubuntu.com/4094-1/
    https://usn.ubuntu.com/4118-1/
    https://www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.20.15

    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