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Ubuntu Security Update USN-3272-2: Ghostscript regression

Discussion in 'Linux Security Announcements (Automated)' started by LinuxBot, May 16, 2017.

  1. LinuxBot

    LinuxBot Moderator
    Staff Member

    Apr 25, 2017
    Likes Received:
    Ubuntu Security Notice USN-3272-2

    16th May, 2017

    ghostscript regression

    A security issue affects these releases of Ubuntu and its derivatives:

    • Ubuntu 17.04
    • Ubuntu 16.10
    • Ubuntu 16.04 LTS
    • Ubuntu 14.04 LTS

    USN-3272-1 introduced a regression in Ghostscript.

    Software description

    • ghostscript - PostScript and PDF interpreter

    USN-3272-1 fixed vulnerabilities in Ghostscript. This change introduced
    a regression when the DELAYBIND feature is used with the eqproc
    command. This update fixes the problem.

    We apologize for the inconvenience.

    Original advisory details:

    It was discovered that Ghostscript improperly handled parameters to
    the rsdparams and eqproc commands. An attacker could use these to
    craft a malicious document that could disable -dSAFER protections,
    thereby allowing the execution of arbitrary code, or cause a denial
    of service (application crash). (CVE-2017-8291)

    Kamil Frankowicz discovered a use-after-free vulnerability in the
    color management module of Ghostscript. An attacker could use this
    to cause a denial of service (application crash). (CVE-2016-10217)

    Kamil Frankowicz discovered a divide-by-zero error in the scan
    conversion code in Ghostscript. An attacker could use this to cause
    a denial of service (application crash). (CVE-2016-10219)

    Kamil Frankowicz discovered multiple NULL pointer dereference errors in
    Ghostscript. An attacker could use these to cause a denial of service
    (application crash). (CVE-2016-10220, CVE-2017-5951, CVE-2017-7207)

    Update instructions

    The problem can be corrected by updating your system to the following package version:

    Ubuntu 17.04:
    ghostscript-x 9.19~dfsg+1-0ubuntu7.4
    ghostscript 9.19~dfsg+1-0ubuntu7.4
    libgs9 9.19~dfsg+1-0ubuntu7.4
    libgs9-common 9.19~dfsg+1-0ubuntu7.4
    Ubuntu 16.10:
    ghostscript-x 9.19~dfsg+1-0ubuntu6.6
    ghostscript 9.19~dfsg+1-0ubuntu6.6
    libgs9 9.19~dfsg+1-0ubuntu6.6
    libgs9-common 9.19~dfsg+1-0ubuntu6.6
    Ubuntu 16.04 LTS:
    ghostscript-x 9.18~dfsg~0-0ubuntu2.6
    ghostscript 9.18~dfsg~0-0ubuntu2.6
    libgs9 9.18~dfsg~0-0ubuntu2.6
    libgs9-common 9.18~dfsg~0-0ubuntu2.6
    Ubuntu 14.04 LTS:
    ghostscript-x 9.10~dfsg-0ubuntu10.9
    ghostscript 9.10~dfsg-0ubuntu10.9
    libgs9 9.10~dfsg-0ubuntu10.9
    libgs9-common 9.10~dfsg-0ubuntu10.9

    To update your system, please follow these instructions: https://wiki.ubuntu.com/Security/Upgrades.

    In general, a standard system update will make all the necessary changes.


    LP: 1687614

    Continue reading...

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