Ubuntu 4095-1: Linux kernel vulnerabilities

    Date13 Aug 2019
    CategoryUbuntu
    1690
    Posted ByLinuxSecurity Advisories
    Several security issues were fixed in the Linux kernel.
    ==========================================================================
    Ubuntu Security Notice USN-4095-1
    August 13, 2019
    
    linux, linux-aws, linux-kvm, linux-raspi2, linux-snapdragon vulnerabilities
    ==========================================================================
    
    A security issue affects these releases of Ubuntu and its derivatives:
    
    - Ubuntu 16.04 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-kvm: Linux kernel for cloud environments
    - linux-raspi2: Linux kernel for Raspberry Pi 2
    - linux-snapdragon: Linux kernel for Snapdragon processors
    
    Details:
    
    Eli Biham and Lior Neumann discovered that the Bluetooth implementation in
    the Linux kernel did not properly validate elliptic curve parameters during
    Diffie-Hellman key exchange in some situations. An attacker could use this
    to expose sensitive information. (CVE-2018-5383)
    
    It was discovered that a heap buffer overflow existed in the Marvell
    Wireless LAN device driver for the Linux kernel. An attacker could use this
    to cause a denial of service (system crash) or possibly execute arbitrary
    code. (CVE-2019-10126)
    
    Andrei Vlad Lutas and Dan Lutas discovered that some x86 processors
    incorrectly handle SWAPGS instructions during speculative execution. A
    local attacker could use this to expose sensitive information (kernel
    memory). (CVE-2019-1125)
    
    Jann Horn discovered that a race condition existed in the Linux kernel when
    performing core dumps. A local attacker could use this to cause a denial of
    service (system crash) or expose sensitive information. (CVE-2019-11599)
    
    It was discovered that the PowerPC dlpar implementation in the Linux kernel
    did not properly check for allocation errors in some situations. A local
    attacker could possibly use this to cause a denial of service (system
    crash). (CVE-2019-12614)
    
    Jann Horn discovered that the ptrace implementation in the Linux kernel did
    not properly record credentials in some situations. A local attacker could
    use this to cause a denial of service (system crash) or possibly gain
    administrative privileges. (CVE-2019-13272)
    
    It was discovered that the Marvell Wireless LAN device driver in the Linux
    kernel did not properly validate the BSS descriptor. A local attacker could
    possibly use this to cause a denial of service (system crash) or possibly
    execute arbitrary code. (CVE-2019-3846)
    
    Update instructions:
    
    The problem can be corrected by updating your system to the following
    package versions:
    
    Ubuntu 16.04 LTS:
      linux-image-4.4.0-1054-kvm      4.4.0-1054.61
      linux-image-4.4.0-1090-aws      4.4.0-1090.101
      linux-image-4.4.0-1118-raspi2   4.4.0-1118.127
      linux-image-4.4.0-1122-snapdragon  4.4.0-1122.128
      linux-image-4.4.0-159-generic   4.4.0-159.187
      linux-image-4.4.0-159-generic-lpae  4.4.0-159.187
      linux-image-4.4.0-159-lowlatency  4.4.0-159.187
      linux-image-4.4.0-159-powerpc-e500mc  4.4.0-159.187
      linux-image-4.4.0-159-powerpc-smp  4.4.0-159.187
      linux-image-4.4.0-159-powerpc64-emb  4.4.0-159.187
      linux-image-4.4.0-159-powerpc64-smp  4.4.0-159.187
      linux-image-aws                 4.4.0.1090.94
      linux-image-generic             4.4.0.159.167
      linux-image-generic-lpae        4.4.0.159.167
      linux-image-kvm                 4.4.0.1054.54
      linux-image-lowlatency          4.4.0.159.167
      linux-image-powerpc-e500mc      4.4.0.159.167
      linux-image-powerpc-smp         4.4.0.159.167
      linux-image-powerpc64-emb       4.4.0.159.167
      linux-image-powerpc64-smp       4.4.0.159.167
      linux-image-raspi2              4.4.0.1118.118
      linux-image-snapdragon          4.4.0.1122.114
      linux-image-virtual             4.4.0.159.167
    
    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/4095-1
      CVE-2018-5383, CVE-2019-10126, CVE-2019-1125, CVE-2019-11599,
      CVE-2019-12614, CVE-2019-13272, CVE-2019-3846, CVE-2019-9503
    
    Package Information:
      https://launchpad.net/ubuntu/+source/linux/4.4.0-159.187
      https://launchpad.net/ubuntu/+source/linux-aws/4.4.0-1090.101
      https://launchpad.net/ubuntu/+source/linux-kvm/4.4.0-1054.61
      https://launchpad.net/ubuntu/+source/linux-raspi2/4.4.0-1118.127
      https://launchpad.net/ubuntu/+source/linux-snapdragon/4.4.0-1122.128
    
    You are not authorised to post comments.

    Comments powered by CComment

    LinuxSecurity Poll

    What do you think of the articles on LinuxSecurity?

    No answer selected. Please try again.
    Please select either existing option or enter your own, however not both.
    Please select minimum 0 answer(s) and maximum 3 answer(s).
    /main-polls/24-what-do-you-think-of-the-quality-of-the-articles-on-linuxsecurity?task=poll.vote&format=json
    24
    radio
    [{"id":"87","title":"Excellent, don't change a thing!","votes":"4","type":"x","order":"1","pct":57.14,"resources":[]},{"id":"88","title":"Should be more technical","votes":"2","type":"x","order":"2","pct":28.57,"resources":[]},{"id":"89","title":"Should include more HOWTOs","votes":"1","type":"x","order":"3","pct":14.29,"resources":[]}]["#ff5b00","#4ac0f2","#b80028","#eef66c","#60bb22","#b96a9a","#62c2cc"]["rgba(255,91,0,0.7)","rgba(74,192,242,0.7)","rgba(184,0,40,0.7)","rgba(238,246,108,0.7)","rgba(96,187,34,0.7)","rgba(185,106,154,0.7)","rgba(98,194,204,0.7)"]350
    bottom200

    We use cookies to provide and improve our services. By using our site, you consent to our Cookie Policy.