The remote Ubuntu 18.04 LTS host has a package installed that is affected by multiple vulnerabilities as referenced in the USN-4440-1 advisory.

    It was discovered that the network block device (nbd) implementation in the Linux kernel did not properly     check for error conditions in some situations. An attacker could possibly use this to cause a denial of     service (system crash). (CVE-2019-16089)

    It was discovered that the kernel->user space relay implementation in the Linux kernel did not properly     check return values in some situations. A local attacker could possibly use this to cause a denial of     service (system crash). (CVE-2019-19462)

    Chuhong Yuan discovered that go7007 USB audio device driver in the Linux kernel did not properly     deallocate memory in some failure conditions. A physically proximate attacker could use this to cause a     denial of service (memory exhaustion). (CVE-2019-20810)

    Jason A. Donenfeld discovered that the ACPI implementation in the Linux kernel did not properly restrict     loading SSDT code from an EFI variable. A privileged attacker could use this to bypass Secure Boot     lockdown restrictions and execute arbitrary code in the kernel. (CVE-2019-20908)

    It was discovered that the elf handling code in the Linux kernel did not initialize memory before using it     in certain situations. A local attacker could use this to possibly expose sensitive information (kernel     memory). (CVE-2020-10732)

    Fan Yang discovered that the mremap implementation in the Linux kernel did not properly handle DAX Huge     Pages. A local attacker with access to DAX storage could use this to gain administrative privileges.
    (CVE-2020-10757)

    It was discovered that the Linux kernel did not correctly apply Speculative Store Bypass Disable (SSBD)     mitigations in certain situations. A local attacker could possibly use this to expose sensitive     information. (CVE-2020-10766)

    It was discovered that the Linux kernel did not correctly apply Indirect Branch Predictor Barrier (IBPB)     mitigations in certain situations. A local attacker could possibly use this to expose sensitive     information. (CVE-2020-10767)

    It was discovered that the Linux kernel could incorrectly enable Indirect Branch Speculation after it has     been disabled for a process via a prctl() call. A local attacker could possibly use this to expose     sensitive information. (CVE-2020-10768)

    Mauricio Faria de Oliveira discovered that the aufs implementation in the Linux kernel improperly managed     inode reference counts in the vfsub_dentry_open() method. A local attacker could use this vulnerability to     cause a denial of service. (CVE-2020-11935)

    It was discovered that the Virtual Terminal keyboard driver in the Linux kernel contained an integer     overflow. A local attacker could possibly use this to have an unspecified impact. (CVE-2020-13974)

    Jason A. Donenfeld discovered that the ACPI implementation in the Linux kernel did not properly restrict     loading ACPI tables via configfs. A privileged attacker could use this to bypass Secure Boot lockdown     restrictions and execute arbitrary code in the kernel. (CVE-2020-15780)

Tenable has extracted the preceding description block directly from the Ubuntu security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

Detections

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Ubuntu 18.04 LTS : linux kernel vulnerabilities (USN-4440-1)

high Nessus Plugin ID 139028

Version 1.9