Debian LTS: DLA-1818-1: dbus security update

    Date14 Jun 2019
    CategoryDebian LTS
    677
    Posted ByLinuxSecurity Advisories
    Joe Vennix discovered an authentication bypass vulnerability in dbus, an asynchronous inter-process communication system. The implementation of the DBUS_COOKIE_SHA1 authentication mechanism was susceptible to a symbolic link attack. A local attacker could take advantage of this flaw
    
    Package        : dbus
    Version        : 1.8.22-0+deb8u2
    CVE ID         : CVE-2019-12749
    Debian Bug     : 930375
    
    Joe Vennix discovered an authentication bypass vulnerability in dbus, an
    asynchronous inter-process communication system. The implementation of
    the DBUS_COOKIE_SHA1 authentication mechanism was susceptible to a
    symbolic link attack. A local attacker could take advantage of this flaw
    to bypass authentication and connect to a DBusServer with elevated
    privileges.
    
    For Debian 8 "Jessie", this problem has been fixed in version
    1.8.22-0+deb8u2.
    
    We recommend that you upgrade your dbus 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
    
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