The remote Ubuntu 18.04 LTS host has a package installed that is affected by multiple vulnerabilities as referenced in the USN-3980-2 advisory.

    USN-3980-1 fixed vulnerabilities in the Linux kernel for Ubuntu 18.10. This update provides the     corresponding updates for the Linux Hardware Enablement (HWE) kernel from Ubuntu 18.10 for Ubuntu 18.04     LTS.

    Ke Sun, Henrique Kawakami, Kekai Hu, Rodrigo Branco, Giorgi Maisuradze, Dan Horea Lutas, Andrei Lutas,     Volodymyr Pikhur, Stephan van Schaik, Alyssa Milburn, Sebastian sterlund, Pietro Frigo, Kaveh Razavi,     Herbert Bos, Cristiano Giuffrida, Moritz Lipp, Michael Schwarz, and Daniel Gruss discovered that memory     previously stored in microarchitectural fill buffers of an Intel CPU core may be exposed to a malicious     process that is executing on the same CPU core. A local attacker could use this to expose sensitive     information. (CVE-2018-12130)

    Brandon Falk, Ke Sun, Henrique Kawakami, Kekai Hu, Rodrigo Branco, Stephan van Schaik, Alyssa Milburn,     Sebastian sterlund, Pietro Frigo, Kaveh Razavi, Herbert Bos, and Cristiano Giuffrida discovered that     memory previously stored in microarchitectural load ports of an Intel CPU core may be exposed to a     malicious process that is executing on the same CPU core. A local attacker could use this to expose     sensitive information. (CVE-2018-12127)

    Ke Sun, Henrique Kawakami, Kekai Hu, Rodrigo Branco, Marina Minkin, Daniel Moghimi, Moritz Lipp, Michael     Schwarz, Jo Van Bulck, Daniel Genkin, Daniel Gruss, Berk Sunar, Frank Piessens, and Yuval Yarom discovered     that memory previously stored in microarchitectural store buffers of an Intel CPU core may be exposed to a     malicious process that is executing on the same CPU core. A local attacker could use this to expose     sensitive information. (CVE-2018-12126)

    Vasily Averin and Evgenii Shatokhin discovered that a use-after-free vulnerability existed in the NFS41+     subsystem when multiple network namespaces are in use. A local attacker in a container could use this to     cause a denial of service (system crash) or possibly execute arbitrary code. (CVE-2018-16884)

    Ke Sun, Henrique Kawakami, Kekai Hu, Rodrigo Branco, Volodrmyr Pikhur, Moritz Lipp, Michael Schwarz,     Daniel Gruss, Stephan van Schaik, Alyssa Milburn, Sebastian sterlund, Pietro Frigo, Kaveh Razavi,     Herbert Bos, and Cristiano Giuffrida discovered that uncacheable memory previously stored in     microarchitectural buffers of an Intel CPU core may be exposed to a malicious process that is executing on     the same CPU core. A local attacker could use this to expose sensitive information. (CVE-2019-11091)

    Matteo Croce, Natale Vinto, and Andrea Spagnolo discovered that the cgroups subsystem of the Linux kernel     did not properly account for SCTP socket buffers. A local attacker could use this to cause a denial of     service (system crash). (CVE-2019-3874)

    Alex Williamson discovered that the vfio subsystem of the Linux kernel did not properly limit DMA     mappings. A local attacker could use this to cause a denial of service (memory exhaustion).
    (CVE-2019-3882)

    Marc Orr discovered that the KVM hypervisor implementation in the Linux kernel did not properly restrict     APIC MSR register values when nested virtualization is used. An attacker in a guest vm could use this to     cause a denial of service (host OS crash). (CVE-2019-3887)

    Hugues Anguelkov discovered that the Broadcom Wifi driver in the Linux kernel contained a heap buffer     overflow. A physically proximate attacker could use this to cause a denial of service (system crash) or     possibly execute arbitrary code. (CVE-2019-9500)

    Hugues Anguelkov discovered that the Broadcom Wifi driver in the Linux kernel did not properly prevent     remote firmware events from being processed for USB Wifi devices. A physically proximate attacker could     use this to send firmware events to the device. (CVE-2019-9503)

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.

The remote Ubuntu 16.04 LTS host has a package installed that is affected by multiple vulnerabilities as referenced in the USN-3981-2 advisory.

    USN-3981-1 fixed vulnerabilities in the Linux kernel for Ubuntu 18.04 LTS. This update provides the     corresponding updates for the Linux Hardware Enablement (HWE) kernel from Ubuntu 18.04 LTS for Ubuntu     16.04 LTS and for the Linux Azure kernel for Ubuntu 14.04 LTS.

    Ke Sun, Henrique Kawakami, Kekai Hu, Rodrigo Branco, Giorgi Maisuradze, Dan Horea Lutas, Andrei Lutas,     Volodymyr Pikhur, Stephan van Schaik, Alyssa Milburn, Sebastian sterlund, Pietro Frigo, Kaveh Razavi,     Herbert Bos, Cristiano Giuffrida, Moritz Lipp, Michael Schwarz, and Daniel Gruss discovered that memory     previously stored in microarchitectural fill buffers of an Intel CPU core may be exposed to a malicious     process that is executing on the same CPU core. A local attacker could use this to expose sensitive     information. (CVE-2018-12130)

    Brandon Falk, Ke Sun, Henrique Kawakami, Kekai Hu, Rodrigo Branco, Stephan van Schaik, Alyssa Milburn,     Sebastian sterlund, Pietro Frigo, Kaveh Razavi, Herbert Bos, and Cristiano Giuffrida discovered that     memory previously stored in microarchitectural load ports of an Intel CPU core may be exposed to a     malicious process that is executing on the same CPU core. A local attacker could use this to expose     sensitive information. (CVE-2018-12127)

    Ke Sun, Henrique Kawakami, Kekai Hu, Rodrigo Branco, Marina Minkin, Daniel Moghimi, Moritz Lipp, Michael     Schwarz, Jo Van Bulck, Daniel Genkin, Daniel Gruss, Berk Sunar, Frank Piessens, and Yuval Yarom discovered     that memory previously stored in microarchitectural store buffers of an Intel CPU core may be exposed to a     malicious process that is executing on the same CPU core. A local attacker could use this to expose     sensitive information. (CVE-2018-12126)

    Vasily Averin and Evgenii Shatokhin discovered that a use-after-free vulnerability existed in the NFS41+     subsystem when multiple network namespaces are in use. A local attacker in a container could use this to     cause a denial of service (system crash) or possibly execute arbitrary code. (CVE-2018-16884)

    Ke Sun, Henrique Kawakami, Kekai Hu, Rodrigo Branco, Volodrmyr Pikhur, Moritz Lipp, Michael Schwarz,     Daniel Gruss, Stephan van Schaik, Alyssa Milburn, Sebastian sterlund, Pietro Frigo, Kaveh Razavi,     Herbert Bos, and Cristiano Giuffrida discovered that uncacheable memory previously stored in     microarchitectural buffers of an Intel CPU core may be exposed to a malicious process that is executing on     the same CPU core. A local attacker could use this to expose sensitive information. (CVE-2019-11091)

    Matteo Croce, Natale Vinto, and Andrea Spagnolo discovered that the cgroups subsystem of the Linux kernel     did not properly account for SCTP socket buffers. A local attacker could use this to cause a denial of     service (system crash). (CVE-2019-3874)

    Alex Williamson discovered that the vfio subsystem of the Linux kernel did not properly limit DMA     mappings. A local attacker could use this to cause a denial of service (memory exhaustion).
    (CVE-2019-3882)

    Hugues Anguelkov discovered that the Broadcom Wifi driver in the Linux kernel contained a heap buffer     overflow. A physically proximate attacker could use this to cause a denial of service (system crash) or     possibly execute arbitrary code. (CVE-2019-9500)

    Hugues Anguelkov discovered that the Broadcom Wifi driver in the Linux kernel did not properly prevent     remote firmware events from being processed for USB Wifi devices. A physically proximate attacker could     use this to send firmware events to the device. (CVE-2019-9503)

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.

The remote Redhat Enterprise Linux 8 host has packages installed that are affected by multiple vulnerabilities as referenced in the RHSA-2019:1175 advisory.

  - hardware: Microarchitectural Store Buffer Data Sampling (MSBDS) (CVE-2018-12126)

  - hardware: Micro-architectural Load Port Data Sampling - Information Leak (MLPDS) (CVE-2018-12127)

  - hardware: Microarchitectural Fill Buffer Data Sampling (MFBDS) (CVE-2018-12130)

  - QEMU: device_tree: heap buffer overflow while loading device tree blob (CVE-2018-20815)

  - libssh2: Integer overflow in transport read resulting in out of bounds write (CVE-2019-3855)

  - libssh2: Integer overflow in keyboard interactive handling resulting in out of bounds write     (CVE-2019-3856)

  - libssh2: Integer overflow in SSH packet processing channel resulting in out of bounds write     (CVE-2019-3857)

  - libssh2: Integer overflow in user authenticate keyboard interactive allows out-of-bounds writes     (CVE-2019-3863)

  - hardware: Microarchitectural Data Sampling Uncacheable Memory (MDSUM) (CVE-2019-11091)

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

ID	Name	Product	Family	Published	Updated	Severity
125140	Ubuntu 18.04 LTS : Linux kernel (HWE) vulnerabilities (USN-3980-2)	Nessus	Ubuntu Local Security Checks	5/15/2019	8/27/2024	high
125142	Ubuntu 16.04 LTS : Linux kernel (HWE) vulnerabilities (USN-3981-2)	Nessus	Ubuntu Local Security Checks	5/15/2019	8/27/2024	high
125041	RHEL 8 : virt:rhel (RHSA-2019:1175)	Nessus	Red Hat Local Security Checks	5/14/2019	5/28/2024	critical

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