Debian: 'cron' vulnerability

    Date07 May 2001
    CategoryDebian
    2377
    Posted ByLinuxSecurity Advisories
    A recent (fall 2000) security fix to cron introduced an error in giving up privileges before invoking the editor. A malicious user could easily gain root access.
    
    ------------------------------------------------------------------------
    Debian Security Advisory DSA-054-1                   This email address is being protected from spambots. You need JavaScript enabled to view it. 
    http://www.debian.org/security/                         Wichert Akkerman
    May  7, 2001
    ------------------------------------------------------------------------
    
    
    Package        : cron
    Problem type   : local root exploit
    Debian-specific:  no
    
    A recent (fall 2000) security fix to cron introduced an error in giving
    up privileges before invoking the editor.  A malicious user could
    easily gain root access.
    
    This has been fixed in version 3.0pl1-57.3 (or 3.0pl1-67 for unstable).
    No exploits are known to exist, but we recommend that you upgrade your
    cron packages immediately.
    
    wget url
            will fetch the file for you
    dpkg -i file.deb
            will install the referenced file.
    
    
    Debian GNU/Linux 2.2 alias potato
    ---------------------------------
    
      Potato was released for alpha, arm, i386, m68k, powerpc and sparc.
    
      Source archives:
         http://security.debian.org/dists/stable/updates/main/source/cron_3.0pl1-57.3.diff.gz
          MD5 checksum: beef030f2642e0e3178cc1fcddd3601f
         http://security.debian.org/dists/stable/updates/main/source/cron_3.0pl1-57.3.dsc
          MD5 checksum: 898496ede6e71287a50acabd0a9bfdc0
         http://security.debian.org/dists/stable/updates/main/source/cron_3.0pl1.orig.tar.gz
          MD5 checksum: 4c64aece846f8483daf440f8e3dd210f
    
      Alpha architecture:
         http://security.debian.org/dists/stable/updates/main/binary-alpha/cron_3.0pl1-57.3_alpha.deb
          MD5 checksum: b056a55f3d51d92390f6e4b7c09f8108
    
      ARM architecture:
         http://security.debian.org/dists/stable/updates/main/binary-arm/cron_3.0pl1-57.3_arm.deb
          MD5 checksum: 0ebd5904db1e137caa53e83d085f5973
    
      Intel ia32 architecture:
         http://security.debian.org/dists/stable/updates/main/binary-i386/cron_3.0pl1-57.3_i386.deb
          MD5 checksum: 6a11a3427bd263429f8189054b67add7
    
      Motorola 680x0 architecture:
         http://security.debian.org/dists/stable/updates/main/binary-m68k/cron_3.0pl1-57.3_m68k.deb
          MD5 checksum: eb9993da9cc3c5d5188866ca453c0ab7
    
      PowerPC architecture:
         http://security.debian.org/dists/stable/updates/main/binary-powerpc/cron_3.0pl1-57.3_powerpc.deb
          MD5 checksum: 17d1109ce6eeb714a09f864bb244f804
    
      Sun Sparc architecture:
         http://security.debian.org/dists/stable/updates/main/binary-sparc/cron_3.0pl1-57.3_sparc.deb
          MD5 checksum: 9486a5eaa675ada6a5bbfaca2fa2a9ef
    
      These packages will be moved into the stable distribution on its next
      revision.
    
    For not yet released architectures please refer to the appropriate
    directory  ftp://ftp.debian.org/debian/dists/sid/binary-$arch/ .
    
    --
    ----------------------------------------------------------------------------
    apt-get: deb  http://security.debian.org/ stable/updates main
    dpkg-ftp:  ftp://security.debian.org/debian-security dists/stable/updates/main
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