Linux Security
    Linux Security
    Linux Security

    Ubuntu 4225-1: Linux kernel vulnerabilities

    Date 06 Jan 2020
    438
    Posted By LinuxSecurity Advisories
    Several security issues were fixed in the Linux kernel.
    ==========================================================================
    Ubuntu Security Notice USN-4225-1
    January 07, 2020
    
    linux, linux-aws, linux-azure, linux-azure-5.3, linux-gcp, linux-gcp-5.3,
    linux-kvm, linux-oracle, linux-raspi2 vulnerabilities
    ==========================================================================
    
    A security issue affects these releases of Ubuntu and its derivatives:
    
    - Ubuntu 19.10
    - Ubuntu 18.04 LTS
    
    Summary:
    
    Several security issues were fixed in the Linux kernel.
    
    Software Description:
    - linux: Linux kernel
    - linux-aws: Linux kernel for Amazon Web Services (AWS) systems
    - linux-azure: Linux kernel for Microsoft Azure Cloud systems
    - linux-gcp: Linux kernel for Google Cloud Platform (GCP) systems
    - linux-kvm: Linux kernel for cloud environments
    - linux-oracle: Linux kernel for Oracle Cloud systems
    - linux-raspi2: Linux kernel for Raspberry Pi 2
    - linux-azure-5.3: Linux kernel for Microsoft Azure Cloud systems
    - linux-gcp-5.3: Linux kernel for Google Cloud Platform (GCP) systems
    
    Details:
    
    It was discovered that a heap-based buffer overflow existed in the Marvell
    WiFi-Ex Driver for the Linux kernel. A physically proximate attacker could
    use this to cause a denial of service (system crash) or possibly execute
    arbitrary code. (CVE-2019-14895, CVE-2019-14901)
    
    It was discovered that a heap-based buffer overflow existed in the Marvell
    Libertas WLAN Driver for the Linux kernel. A physically proximate attacker
    could use this to cause a denial of service (system crash) or possibly
    execute arbitrary code. (CVE-2019-14896, CVE-2019-14897)
    
    It was discovered that the Fujitsu ES network device driver for the Linux
    kernel did not properly check for errors in some situations, leading to a
    NULL pointer dereference. A local attacker could use this to cause a denial
    of service. (CVE-2019-16231)
    
    Anthony Steinhauser discovered that the Linux kernel did not properly
    perform Spectre_RSB mitigations to all processors for PowerPC architecture
    systems in some situations. A local attacker could use this to expose
    sensitive information. (CVE-2019-18660)
    
    It was discovered that the Broadcom V3D DRI driver in the Linux kernel did
    not properly deallocate memory in certain error conditions. A local
    attacker could possibly use this to cause a denial of service (kernel
    memory exhaustion). (CVE-2019-19044)
    
    It was discovered that the Mellanox Technologies Innova driver in the Linux
    kernel did not properly deallocate memory in certain failure conditions. A
    local attacker could use this to cause a denial of service (kernel memory
    exhaustion). (CVE-2019-19045)
    
    It was discovered that the Mellanox Technologies ConnectX driver in the
    Linux kernel did not properly deallocate memory in certain failure
    conditions. A local attacker could use this to cause a denial of service
    (kernel memory exhaustion). (CVE-2019-19047)
    
    It was discovered that the Intel WiMAX 2400 driver in the Linux kernel did
    not properly deallocate memory in certain situations. A local attacker
    could use this to cause a denial of service (kernel memory exhaustion).
    (CVE-2019-19051)
    
    It was discovered that Geschwister Schneider USB CAN interface driver in
    the Linux kernel did not properly deallocate memory in certain failure
    conditions. A physically proximate attacker could use this to cause a
    denial of service (kernel memory exhaustion). (CVE-2019-19052)
    
    It was discovered that the netlink-based 802.11 configuration interface in
    the Linux kernel did not deallocate memory in certain error conditions. A
    local attacker could possibly use this to cause a denial of service (kernel
    memory exhaustion). (CVE-2019-19055)
    
    It was discovered that the event tracing subsystem of the Linux kernel did
    not properly deallocate memory in certain error conditions. A local
    attacker could use this to cause a denial of service (kernel memory
    exhaustion). (CVE-2019-19072)
    
    It was discovered that the driver for memoryless force-feedback input
    devices in the Linux kernel contained a use-after-free vulnerability. A
    physically proximate attacker could possibly use this to cause a denial of
    service (system crash) or execute arbitrary code. (CVE-2019-19524)
    
    It was discovered that the Microchip CAN BUS Analyzer driver in the Linux
    kernel contained a use-after-free vulnerability on device disconnect. A
    physically proximate attacker could use this to cause a denial of service
    (system crash) or possibly execute arbitrary code. (CVE-2019-19529)
    
    It was discovered that the PEAK-System Technik USB driver in the Linux
    kernel did not properly sanitize memory before sending it to the device. A
    physically proximate attacker could use this to expose sensitive
    information (kernel memory). (CVE-2019-19534)
    
    Tristan Madani discovered that the ALSA timer implementation in the Linux
    kernel contained a use-after-free vulnerability. A local attacker could use
    this to cause a denial of service (system crash) or possibly execute
    arbitrary code. (CVE-2019-19807)
    
    It was discovered that the DesignWare USB3 controller driver in the Linux
    kernel did not properly deallocate memory in some error conditions. A local
    attacker could possibly use this to cause a denial of service (memory
    exhaustion). (CVE-2019-18813)
    
    Update instructions:
    
    The problem can be corrected by updating your system to the following
    package versions:
    
    Ubuntu 19.10:
      linux-image-5.3.0-1008-oracle   5.3.0-1008.9
      linux-image-5.3.0-1009-aws      5.3.0-1009.10
      linux-image-5.3.0-1009-azure    5.3.0-1009.10
      linux-image-5.3.0-1009-kvm      5.3.0-1009.10
      linux-image-5.3.0-1011-gcp      5.3.0-1011.12
      linux-image-5.3.0-1015-raspi2   5.3.0-1015.17
      linux-image-5.3.0-26-generic    5.3.0-26.28
      linux-image-5.3.0-26-generic-lpae  5.3.0-26.28
      linux-image-5.3.0-26-lowlatency  5.3.0-26.28
      linux-image-5.3.0-26-snapdragon  5.3.0-26.28
      linux-image-aws                 5.3.0.1009.11
      linux-image-azure               5.3.0.1009.27
      linux-image-gcp                 5.3.0.1011.12
      linux-image-generic             5.3.0.26.30
      linux-image-generic-lpae        5.3.0.26.30
      linux-image-gke                 5.3.0.1011.12
      linux-image-kvm                 5.3.0.1009.11
      linux-image-lowlatency          5.3.0.26.30
      linux-image-oracle              5.3.0.1008.9
      linux-image-raspi2              5.3.0.1015.12
      linux-image-snapdragon          5.3.0.26.30
      linux-image-virtual             5.3.0.26.30
    
    Ubuntu 18.04 LTS:
      linux-image-5.3.0-1009-azure    5.3.0-1009.10~18.04.1
      linux-image-5.3.0-1010-gcp      5.3.0-1010.11~18.04.1
      linux-image-azure-edge          5.3.0.1009.9
      linux-image-gcp-edge            5.3.0.1010.10
    
    After a standard system update you need to reboot your computer to make
    all the necessary changes.
    
    ATTENTION: Due to an unavoidable ABI change the kernel updates have
    been given a new version number, which requires you to recompile and
    reinstall all third party kernel modules you might have installed.
    Unless you manually uninstalled the standard kernel metapackages
    (e.g. linux-generic, linux-generic-lts-RELEASE, linux-virtual,
    linux-powerpc), a standard system upgrade will automatically perform
    this as well.
    
    References:
      https://usn.ubuntu.com/4225-1
      CVE-2019-14895, CVE-2019-14896, CVE-2019-14897, CVE-2019-14901,
      CVE-2019-16231, CVE-2019-18660, CVE-2019-18813, CVE-2019-19044,
      CVE-2019-19045, CVE-2019-19047, CVE-2019-19051, CVE-2019-19052,
      CVE-2019-19055, CVE-2019-19072, CVE-2019-19524, CVE-2019-19529,
      CVE-2019-19534, CVE-2019-19807
    
    Package Information:
      https://launchpad.net/ubuntu/+source/linux/5.3.0-26.28
      https://launchpad.net/ubuntu/+source/linux-aws/5.3.0-1009.10
      https://launchpad.net/ubuntu/+source/linux-azure/5.3.0-1009.10
      https://launchpad.net/ubuntu/+source/linux-gcp/5.3.0-1011.12
      https://launchpad.net/ubuntu/+source/linux-kvm/5.3.0-1009.10
      https://launchpad.net/ubuntu/+source/linux-oracle/5.3.0-1008.9
      https://launchpad.net/ubuntu/+source/linux-raspi2/5.3.0-1015.17
      https://launchpad.net/ubuntu/+source/linux-azure-5.3/5.3.0-1009.10~18.04.1
      https://launchpad.net/ubuntu/+source/linux-gcp-5.3/5.3.0-1010.11~18.04.1
    

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