Debian: 'libgtop' Remote nobody exploit
Posted by LinuxSecurity.com Team   
Debian libgtop_daemon runs as user nobody both bugs could be usedto gain access as the nobody user to a system running libgtop_daemon.

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Debian Security Advisory DSA-098-1                   security@debian.org 
http://www.debian.org/security/                         Wichert Akkerman
January  9, 2002
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Package        : libgtop
Problem type   : remote nobody exploit
Debian-specific: no

Two different problems where found in libgtop-daemon:

* The laboratory intexxia found a format string problem in the logging
  code from libgtop_daemon. There were two logging functions which are
  called when authorizing a client which could be exploited by a remote
  user.

* Flavio Veloso found a buffer overflow in the function that authorizes
  clients

Since libgtop_daemon runs as user nobody both bugs could be used
to gain access as the nobody user to a system running libgtop_daemon.

Both problems have been fixed in version 1.0.6-1.1 and we recommend
you upgrade your libgtop-daemon package 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/libgtop_1.0.6-1.1.diff.gz
      MD5 checksum: 19c9689fb62dd1ab26dcfc0a2580280d
     http://security.debian.org/dists/stable/updates/main/source/libgtop_1.0.6-1.1.dsc
      MD5 checksum: 3441b7110981688ecdb0e6941e5d4fb3
     http://security.debian.org/dists/stable/updates/main/source/libgtop_1.0.6.orig.tar.gz
      MD5 checksum: ad63df637697915b5326494a0ae4a337

  Alpha architecture:
     
http://security.debian.org/dists/stable/updates/main/binary-alpha/libgtop-daemon_1.0.6-1.1_alpha.deb
      MD5 checksum: 43c25fd2d11a6cc5c0f4c3d8f504a607
     
http://security.debian.org/dists/stable/updates/main/binary-alpha/libgtop-dev_1.0.6-1.1_alpha.deb
      MD5 checksum: 264a9de99851b0e93521882c7bd1f0ed
     
http://security.debian.org/dists/stable/updates/main/binary-alpha/libgtop1_1.0.6-1.1_alpha.deb
      MD5 checksum: 951612c2774818884adbdfcaedfb6470

  ARM architecture:
     
http://security.debian.org/dists/stable/updates/main/binary-arm/libgtop-daemon_1.0.6-1.1_arm.deb
      MD5 checksum: eb273da007eb9687b0c9bc8891c6d515
     
http://security.debian.org/dists/stable/updates/main/binary-arm/libgtop-dev_1.0.6-1.1_arm.deb
      MD5 checksum: e1b5a197e408b8d47af8324757449a46
     http://security.debian.org/dists/stable/updates/main/binary-arm/libgtop1_1.0.6-1.1_arm.deb
      MD5 checksum: 2ee33ee2f8d1816a16a078ea95bbfe09

  Intel IA-32 architecture:
     
http://security.debian.org/dists/stable/updates/main/binary-i386/libgtop-daemon_1.0.6-1.1_i386.deb
      MD5 checksum: 169c014d0fff9d24045ed733fb26aacc
     
http://security.debian.org/dists/stable/updates/main/binary-i386/libgtop-dev_1.0.6-1.1_i386.deb
      MD5 checksum: 9ed2aea64be71cf4c4e5dc6274d9c774
     
http://security.debian.org/dists/stable/updates/main/binary-i386/libgtop1_1.0.6-1.1_i386.deb
      MD5 checksum: 321badb855ed000452f0180a2e557388

  Motorola 680x0 architecture:
     
http://security.debian.org/dists/stable/updates/main/binary-m68k/libgtop-daemon_1.0.6-1.1_m68k.deb
      MD5 checksum: b8b3aeee96118803d74b37b3a8a5d240
     
http://security.debian.org/dists/stable/updates/main/binary-m68k/libgtop-dev_1.0.6-1.1_m68k.deb
      MD5 checksum: c530ab0d06eb946ae297748fcc616368
     
http://security.debian.org/dists/stable/updates/main/binary-m68k/libgtop1_1.0.6-1.1_m68k.deb
      MD5 checksum: befab934a9b20ad578a59e4876cd941b

  PowerPC architecture:
     
http://security.debian.org/dists/stable/updates/main/binary-powerpc/libgtop-daemon_1.0.6-1.1_powerpc.deb
      MD5 checksum: c7a4e133d3c23909d5467f2a96171a35
     
http://security.debian.org/dists/stable/updates/main/binary-powerpc/libgtop-dev_1.0.6-1.1_powerpc.deb
      MD5 checksum: 433f3d7a8ccdff27b41f60ca6b57d4d8
     
http://security.debian.org/dists/stable/updates/main/binary-powerpc/libgtop1_1.0.6-1.1_powerpc.deb
      MD5 checksum: c54fb9a3383358c613948785f525e57f

  Sun Sparc architecture:
     
http://security.debian.org/dists/stable/updates/main/binary-sparc/libgtop-daemon_1.0.6-1.1_sparc.deb
      MD5 checksum: 506997561175c2d2428ad40bab64729f
     
http://security.debian.org/dists/stable/updates/main/binary-sparc/libgtop-dev_1.0.6-1.1_sparc.deb
      MD5 checksum: d9609e50f4feb156621e5970a93d81a8
     
http://security.debian.org/dists/stable/updates/main/binary-sparc/libgtop1_1.0.6-1.1_sparc.deb
      MD5 checksum: c10da9a8c30b7570a95d82e73da6bf38

  These packages will be moved into the stable distribution on its next
  revision.

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dpkg-ftp:  ftp://security.debian.org/debian-security dists/stable/updates/main
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