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===========================================================================
             AUSCERT External Security Bulletin Redistribution

                               ESB-2018.2058
                           cups security update
                               16 July 2018

===========================================================================

        AusCERT Security Bulletin Summary
        ---------------------------------

Product:           cups
Publisher:         Debian
Operating System:  Debian GNU/Linux 8
Impact/Access:     Increased Privileges     -- Existing Account
                   Access Confidential Data -- Existing Account
                   Reduced Security         -- Existing Account
Resolution:        Patch/Upgrade
CVE Names:         CVE-2018-6553 CVE-2018-4181 CVE-2018-4180

Reference:         ESB-2018.2025
                   ESB-2018.2021

Original Bulletin: 
   https://security-tracker.debian.org/tracker/DLA-1426-1

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Package        : cups
Version        : 1.7.5-11+deb8u4
CVE ID         : CVE-2018-4180 CVE-2018-4181 CVE-2018-6553

Several vulnerabilities were discovered in CUPS, the Common UNIX Printing
System. These issues have been identified with the following CVE ids:

CVE-2018-4180

     Dan Bastone of Gotham Digital Science discovered that a local
     attacker with access to cupsctl could escalate privileges by setting
     an environment variable.

CVE-2018-4181

     Eric Rafaloff and John Dunlap of Gotham Digital Science discovered
     that a local attacker can perform limited reads of arbitrary files
     as root by manipulating cupsd.conf.

CVE-2018-6553

    Dan Bastone of Gotham Digital Science discovered that an attacker
    can bypass the AppArmor cupsd sandbox by invoking the dnssd backend
    using an alternate name that has been hard linked to dnssd.

For Debian 8 "Jessie", these problems have been fixed in version
1.7.5-11+deb8u4.

We recommend that you upgrade your cups 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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===========================================================================
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