Ubuntu 2970-1: Linux kernel (Vivid HWE) vulnerabilities

    Date09 May 2016
    CategoryUbuntu
    36
    Posted ByLinuxSecurity Advisories
    Several security issues were fixed in the kernel.
    ==========================================================================
    Ubuntu Security Notice USN-2970-1
    May 09, 2016
    
    linux-lts-vivid vulnerabilities
    ==========================================================================
    
    A security issue affects these releases of Ubuntu and its derivatives:
    
    - Ubuntu 14.04 LTS
    
    Summary:
    
    Several security issues were fixed in the kernel.
    
    Software Description:
    - linux-lts-vivid: Linux hardware enablement kernel from Vivid for Trusty
    
    Details:
    
    Ralf Spenneberg discovered that the Aiptek Tablet USB device driver in the
    Linux kernel did not properly sanity check the endpoints reported by the
    device. An attacker with physical access could cause a denial of service
    (system crash). (CVE-2015-7515)
    
    Ben Hawkes discovered that the Linux kernel's AIO interface allowed single
    writes greater than 2GB, which could cause an integer overflow when writing
    to certain filesystems, socket or device types. A local attacker could this
    to cause a denial of service (system crash) or possibly execute arbitrary
    code. (CVE-2015-8830)
    
    Zach Riggle discovered that the Linux kernel's list poison feature did not
    take into account the mmap_min_addr value. A local attacker could use this
    to bypass the kernel's poison-pointer protection mechanism while attempting
    to exploit an existing kernel vulnerability. (CVE-2016-0821)
    
    Ralf Spenneberg discovered that the USB sound subsystem in the Linux kernel
    did not properly validate USB device descriptors. An attacker with physical
    access could use this to cause a denial of service (system crash).
    (CVE-2016-2184)
    
    Ralf Spenneberg discovered that the ATI Wonder Remote II USB driver in the
    Linux kernel did not properly validate USB device descriptors. An attacker
    with physical access could use this to cause a denial of service (system
    crash). (CVE-2016-2185)
    
    Ralf Spenneberg discovered that the PowerMate USB driver in the Linux
    kernel did not properly validate USB device descriptors. An attacker with
    physical access could use this to cause a denial of service (system crash).
    (CVE-2016-2186)
    
    Ralf Spenneberg discovered that the I/O-Warrior USB device driver in the
    Linux kernel did not properly validate USB device descriptors. An attacker
    with physical access could use this to cause a denial of service (system
    crash). (CVE-2016-2188)
    
    Sergej Schumilo, Hendrik Schwartke, and Ralf Spenneberg discovered that the
    MCT USB RS232 Converter device driver in the Linux kernel did not properly
    validate USB device descriptors. An attacker with physical access could use
    this to cause a denial of service (system crash). (CVE-2016-3136)
    
    Sergej Schumilo, Hendrik Schwartke, and Ralf Spenneberg discovered that the
    Cypress M8 USB device driver in the Linux kernel did not properly validate
    USB device descriptors. An attacker with physical access could use this to
    cause a denial of service (system crash). (CVE-2016-3137)
    
    Sergej Schumilo, Hendrik Schwartke, and Ralf Spenneberg discovered that the
    USB abstract device control driver for modems and ISDN adapters did not
    validate endpoint descriptors. An attacker with physical access could use
    this to cause a denial of service (system crash). (CVE-2016-3138)
    
    Sergej Schumilo, Hendrik Schwartke, and Ralf Spenneberg discovered that the
    Linux kernel's USB driver for Digi AccelePort serial converters did not
    properly validate USB device descriptors. An attacker with physical access
    could use this to cause a denial of service (system crash). (CVE-2016-3140)
    
    It was discovered that the IPv4 implementation in the Linux kernel did not
    perform the destruction of inet device objects properly. An attacker in a
    guest OS could use this to cause a denial of service (networking outage) in
    the host OS. (CVE-2016-3156)
    
    Andy Lutomirski discovered that the Linux kernel did not properly context-
    switch IOPL on 64-bit PV Xen guests. An attacker in a guest OS could use
    this to cause a denial of service (guest OS crash), gain privileges, or
    obtain sensitive information. (CVE-2016-3157)
    
    It was discovered that the Linux kernel's USB driver for IMS Passenger
    Control Unit devices did not properly validate the device's interfaces. An
    attacker with physical access could use this to cause a denial of service
    (system crash). (CVE-2016-3689)
    
    Update instructions:
    
    The problem can be corrected by updating your system to the following
    package versions:
    
    Ubuntu 14.04 LTS:
      linux-image-3.19.0-59-generic   3.19.0-59.65~14.04.1
      linux-image-3.19.0-59-generic-lpae  3.19.0-59.65~14.04.1
      linux-image-3.19.0-59-lowlatency  3.19.0-59.65~14.04.1
      linux-image-3.19.0-59-powerpc-e500mc  3.19.0-59.65~14.04.1
      linux-image-3.19.0-59-powerpc-smp  3.19.0-59.65~14.04.1
      linux-image-3.19.0-59-powerpc64-emb  3.19.0-59.65~14.04.1
      linux-image-3.19.0-59-powerpc64-smp  3.19.0-59.65~14.04.1
    
    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:
      http://www.ubuntu.com/usn/usn-2970-1
      CVE-2015-7515, CVE-2015-8830, CVE-2016-0821, CVE-2016-2184,
      CVE-2016-2185, CVE-2016-2186, CVE-2016-2188, CVE-2016-3136,
      CVE-2016-3137, CVE-2016-3138, CVE-2016-3140, CVE-2016-3156,
      CVE-2016-3157, CVE-2016-3689
    
    Package Information:
      https://launchpad.net/ubuntu/+source/linux-lts-vivid/3.19.0-59.65~14.04.1
    
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