Linux Security
    Linux Security
    Linux Security

    Debian: New kernel-patch-vserver packages fix root exploit

    Date 20 Mar 2006
    Posted By LinuxSecurity Advisories
    Updated package.
    - --------------------------------------------------------------------------
    Debian Security Advisory DSA 1011-1                    This email address is being protected from spambots. You need JavaScript enabled to view it.                             Martin Schulze
    March 21st, 2005              
    - --------------------------------------------------------------------------
    Package        : kernel-patch-vserver, util-vserver
    Vulnerability  : missing attribute support
    Problem type   : local (remote)
    Debian-specific: yes
    CVE IDs        : CVE-2005-4347 CVE-2005-4418
    Debian Bugs    : 329087 329090
    Several vulnerabilities have been discovered in the Debian vserver
    support for Linux.  The Common Vulnerabilities and Exposures project
    identifies the following problems:
        Bj�rn Steinbrink discovered that the chroot barrier is not set
        correctly with util-vserver which may result in unauthorised
        escapes from a vserver to the host system.
        This vulnerability is limited to the 2.4 kernel patch included in
        kernel-patch-vserver.  The correction to this problem requires
        updating the util-vserver package as well and installing a new
        kernel built from the updated kernel-patch-vserver package.
        The default policy of util-vserver is set to trust all unknown
        capabilities instead of considering them as insecure.
    The old stable distribution (woody) does not contain a
    kernel-patch-vserver package.
    For the stable distribution (sarge) this problem has been fixed in
    version of kernel-patch-vserver and in version
    0.30.204-5sarge3 of util-vserver.
    For the unstable distribution (sid) this problem has been fixed in
    version 2.3 of kernel-patch-vserver and in version 0.30.208-1 of
    We recommend that you upgrade your util-vserver and
    kernel-patch-vserver packages and build a new kernel immediately.
    Upgrade Instructions
    - --------------------
    wget url
            will fetch the file for you
    dpkg -i file.deb
            will install the referenced file.
    If you are using the apt-get package manager, use the line for
    sources.list as given below:
    apt-get update
            will update the internal database
    apt-get upgrade
            will install corrected packages
    You may use an automated update by adding the resources from the
    footer to the proper configuration.
    Debian GNU/Linux 3.1 alias sarge
    - --------------------------------
      Source archives:
          Size/MD5 checksum:      637 415731be72a9cd966e2fdb5d4f408c4a
          Size/MD5 checksum:   950447 fe6b34612095d2fbdbaab5aefbd83264
          Size/MD5 checksum:      752 e32069a5ca2ef2bc87794cd6c2160821
          Size/MD5 checksum:   115947 d0bb2cd998a73905189ee24b5f46dd0d
          Size/MD5 checksum:   677831 b315f375b1cef48da1b644dec18f22bd
      Architecture independent components:
          Size/MD5 checksum:   436934 b50048ea819d150d660ed96e3988613b
      Alpha architecture:
          Size/MD5 checksum:   600660 e52fe0ff93e4c9ca7d58fe8386ebab5a
      AMD64 architecture:
          Size/MD5 checksum:   429530 c4155982844c085b7d9bc59d7eaa02c4
      Intel IA-32 architecture:
          Size/MD5 checksum:   398794 56831faa6fa6d76c601fee78251f50eb
      Intel IA-64 architecture:
          Size/MD5 checksum:   640332 ab2b2e4283ca5b62c9d9cf5776b6dadb
      Big endian MIPS architecture:
          Size/MD5 checksum:   612918 e4a60532f25ce776880261de79278e85
      Little endian MIPS architecture:
          Size/MD5 checksum:   614152 f3aee29aad2682878f8ed22064f3fafa
      PowerPC architecture:
          Size/MD5 checksum:   425444 9a7542249c2b70661abab2afd5270462
      IBM S/390 architecture:
          Size/MD5 checksum:   440880 376560971a0d2db4bfd51beb67d42bff
      Sun Sparc architecture:
          Size/MD5 checksum:   395640 51e24ac4754b1aa41277378ee9271a1f
      These files will probably be moved into the stable distribution on
      its next update.
    - ---------------------------------------------------------------------------------
    For apt-get: deb stable/updates main
    For dpkg-ftp: dists/stable/updates/main
    Mailing list: This email address is being protected from spambots. You need JavaScript enabled to view it.


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