Debian LTS: DLA-1862-1: linux security update

    Date23 Jul 2019
    CategoryDebian LTS
    1170
    Posted ByLinuxSecurity Advisories
    Several vulnerabilities have been discovered in the Linux kernel that may lead to a privilege escalation, denial of service or information leaks.
    Package        : linux
    Version        : 3.16.70-1
    CVE ID         : CVE-2019-2101 CVE-2019-10639 CVE-2019-13272
    Debian Bug     : 930904
    
    Several vulnerabilities have been discovered in the Linux kernel that
    may lead to a privilege escalation, denial of service or information
    leaks.
    
    CVE-2019-2101
    
        Andrey Konovalov discovered that the USB Video Class driver
        (uvcvideo) did not consistently handle a type field in device
        descriptors, which could result in a heap buffer overflow.  This
        could be used for denial of service or possibly for privilege
        escalation.
    
    CVE-2019-10639
    
        Amit Klein and Benny Pinkas discovered that the generation of IP
        packet IDs used a weak hash function that incorporated a kernel
        virtual address.  In Linux 3.16 this hash function is not used for
        IP IDs but is used for other purposes in the network stack.  In
        custom kernel configurations that enable kASLR, this might weaken
        kASLR.
    
    CVE-2019-13272
    
        Jann Horn discovered that the ptrace subsystem in the Linux kernel
        mishandles the management of the credentials of a process that wants
        to create a ptrace relationship, allowing a local user to obtain root
        privileges under certain scenarios.
    
    For Debian 8 "Jessie", these problems have been fixed in version
    3.16.70-1.  This update also fixes a regression introduced by the
    original fix for CVE-2019-11478 (#930904), and includes other fixes
    from upstream stable updates.
    
    We recommend that you upgrade your linux and linux-latest
    packages.  You will need to use "apt-get upgrade --with-new-pkgs"
    or "apt upgrade" as the binary package names have changed.
    
    We recommend that you upgrade your linux packages.
    
    Further information about Debian LTS security advisories, how to apply
    these updates to your system and frequently asked questions can be
    found at: https://wiki.debian.org/LTS
    
    -- 
    Ben Hutchings - Debian developer, member of kernel, installer and LTS teams
    
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