[Full-Disclosure] LNSA-#2004-0010: login may leak sensitive data

From: Vincenzo Ciaglia (ciaglia_at_netwosix.org)
Date: 04/08/04

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    To: bugtraq@securityfocus.com
    Date: Thu, 8 Apr 2004 18:45:13 +0200

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    Netwosix Linux Security Advisory #2004-0010 <http://www.netwosix.org>
    - -----------------------------------------------------------------------------------

    Package name: util-linux
    Summary: leak problem in util-linux
    Date: 2004-04-08
    Affected versions: Netwosix 1.0
                                     Netwosix 1.1

    - - -> Package description:
    - - ------------------------
    Util-linux is a suite of essential utilities for any Linux system. Its primary
    audience is system integrators and DIY Linux hackers. Util-linux is
    attempting to be portable, but the only platform it has been tested much on
    is Linux i386. It contains the following programs: agetty arch blockdev cal
    cfdisk chfn chkdupexe chsh clear col colcrt colrm column ctrlaltdel cytune
    ddate dmesg elvtune fastboot fasthalt fdformat fdisk fsck.cramfs fsck.minix
    getopt halt hexdump hwclock initctl ipcrm ipcs isosize kill last line logger
    login look mcookie mesg mkfs mkfs.bfs mkfs.cramfs mkfs.minix mkswap more
    mount namei need passwd pg pivot_root ramsize raw rdev readprofile reboot
    rename renice rescuept reset rev rootflags script setfdprm setsid setterm
    sfdisk shutdown simpleinit sln swapoff swapon tunelp ul umount vidmode vipw
    wall whereis write.

    - - -> Problem description:
    - - ------------------------

    The login program in util-linux 2.11 and earlier uses a pointer after it has
    been freed and reallocated, which could cause login to leak sensitive data.

    - - -> Action:
    - - ------------------------
      We recommend that all systems with this package installed be upgraded.
      Please note that if you do not need the functionality provided by this
      package, you may want to remove it from your system.

    - - -> Location:
    - - ---------------------

      You can download the latest version of this package in NEPOTE format from:

    - - -> Nepote Update:
    - - ---------------------

    See this instructions to update the port of this package:

            # cd /usr/ports/
            # wget http://download.netwosix.org/0010/nepote
            # sh nepote (to install the new and updated package)

    - - -> References
    - - ---------------------

            Specific references for this advisory:

    - - -> About Linux Netwosix:
    - - ---------------------------------
    Linux Netwosix is a powerful and optimized Linux distribution for servers
    and Network Security related jobs. It can also be used for special operations
    such as penetration testing with its big collection of security oriented
    software and sources. It's a light distribution created for the requirements
    of every SysAdmin and it's very portable and highly configurable. Our
    philosophy is to give greater liberty for configuration to the SysAdmin.
    Only in this way can he/she configure a powerful and stable server machine.
    Linux Netwosix also has a powerful ports system (Nepote) similar to the xBSD
    systems but more flexible and usable.

    - - -> Questions?
    - - ---------------------
      Check out our mailing lists:

      The advisory itself is available at
    - - --------------------------------------------------

    MD5sums of the packages:
    - - - --------------------------------------------------------------------------
    84c67bd30dc89ed9462b4ef3afbf9496 0008/nepote
    - - - --------------------------------------------------------------------------

    Vincenzo Ciaglia - Linux Netwosix Security Advisories
    <ciaglia@netwosix.org> - <http://www.netwosix.org>
    - --
    Vincenzo Ciaglia
    Linux Netwosix Team - [ Keyid: 0x6BB3E24A]
    Key fingerprint = 4B3E A25F 2A7A 0C19 1A97 616B EA3C FDA4 6BB3 E24A
    Version: GnuPG v1.2.4 (GNU/Linux)

    -----END PGP SIGNATURE-----

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