[ GLSA 200412-25 ] CUPS: Multiple vulnerabilities

From: Thierry Carrez (koon_at_gentoo.org)
Date: 12/28/04

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    Date: Tue, 28 Dec 2004 14:11:56 +0100
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    Gentoo Linux Security Advisory GLSA 200412-25
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                                                http://security.gentoo.org/
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      Severity: High
         Title: CUPS: Multiple vulnerabilities
          Date: December 28, 2004
          Bugs: #74479, #75197
            ID: 200412-25

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    Synopsis
    ========

    Multiple vulnerabilities have been found in CUPS, ranging from local
    Denial of Service attacks to the remote execution of arbitrary code.

    Background
    ==========

    The Common UNIX Printing System (CUPS) is a cross-platform print
    spooler, hpgltops is a CUPS filter handling printing of HPGL files and
    lppasswd is a program used locally to manage spooler passwords.

    Affected packages
    =================

        -------------------------------------------------------------------
         Package / Vulnerable / Unaffected
        -------------------------------------------------------------------
      1 net-print/cups < 1.1.23_rc1 >= 1.1.23_rc1

    Description
    ===========

    CUPS makes use of vulnerable Xpdf code to handle PDF files
    (CAN-2004-1125). Furthermore, Ariel Berkman discovered a buffer
    overflow in the ParseCommand function in hpgl-input.c in the hpgltops
    program (CAN-2004-1267). Finally, Bartlomiej Sieka discovered several
    problems in the lppasswd program: it ignores some write errors
    (CAN-2004-1268), it can leave the passwd.new file in place
    (CAN-2004-1269) and it does not verify that passwd.new file is
    different from STDERR (CAN-2004-1270).

    Impact
    ======

    The Xpdf and hpgltops vulnerabilities may be exploited by a remote
    attacker to execute arbitrary code by sending specific print jobs to a
    CUPS spooler. The lppasswd vulnerabilities may be exploited by a local
    attacker to write data to the CUPS password file or deny further
    password modifications.

    Workaround
    ==========

    There is no known workaround at this time.

    Resolution
    ==========

    All CUPS users should upgrade to the latest version:

        # emerge --sync
        # emerge --ask --oneshot --verbose ">=net-print/cups-1.1.23_rc1"

    References
    ==========

      [ 1 ] CAN-2004-1125
            http://cve.mitre.org/cgi-bin/cvename.cgi?name=CAN-2004-1125
      [ 2 ] CAN-2004-1267
            http://cve.mitre.org/cgi-bin/cvename.cgi?name=CAN-2004-1267
      [ 3 ] CAN-2004-1268
            http://cve.mitre.org/cgi-bin/cvename.cgi?name=CAN-2004-1268
      [ 4 ] CAN-2004-1269
            http://cve.mitre.org/cgi-bin/cvename.cgi?name=CAN-2004-1269
      [ 5 ] CAN-2004-1270
            http://cve.mitre.org/cgi-bin/cvename.cgi?name=CAN-2004-1270
      [ 6 ] Ariel Berkman Advisory
            http://tigger.uic.edu/~jlongs2/holes/cups.txt
      [ 7 ] Bartlomiej Sieka Advisory
            http://tigger.uic.edu/~jlongs2/holes/cups2.txt

    Availability
    ============

    This GLSA and any updates to it are available for viewing at
    the Gentoo Security Website:

      http://security.gentoo.org/glsa/glsa-200412-25.xml

    Concerns?
    =========

    Security is a primary focus of Gentoo Linux and ensuring the
    confidentiality and security of our users machines is of utmost
    importance to us. Any security concerns should be addressed to
    security@gentoo.org or alternatively, you may file a bug at
    http://bugs.gentoo.org.

    License
    =======

    Copyright 2004 Gentoo Foundation, Inc; referenced text
    belongs to its owner(s).

    The contents of this document are licensed under the
    Creative Commons - Attribution / Share Alike license.

    http://creativecommons.org/licenses/by-sa/2.0

    
    



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