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Debian: 'nis' vulnerability Print E-mail
User Rating:      How can I rate this item?
Posted by LinuxSecurity.com Team   
Debian The version of nis as distributed in Debian GNU/Linux 2.1 and 2.2 contains an ypbind package with a security problem.

- ------------------------------------------------------------------------
Debian Security Advisory                             security@debian.org 
http://www.debian.org/security/                         Wichert Akkerman
October 14, 2000
- ------------------------------------------------------------------------


Package        : nis
Problem type   : local exploit
Debian-specific: no

The version of nis as distributed in Debian GNU/Linux 2.1 and 2.2
contains an ypbind package with a security problem.

ypbind is used to request information from a nis server which is then
used by the local machine. The logging code in ypbind was vulnerable to a
printf formating attack which can be exploited by passing ypbind a
carefully crafted request. This way ypbind can be made to run arbitrary
code as root.

This has been fixed in version 3.5-2.1 for Debian GNU/Linux 2.1 and
version 3.8-0.1 for Debian GNU/Linux 2.2 .

We recommend you upgrade your nis package immediately.

wget url
        will fetch the file for you
dpkg -i file.deb
        will install the referenced file.

Debian GNU/Linux 2.1 alias slink
- --------------------------------

  Slink was released for alpha, i386, m68k and sparc. At this moment
  security updates for alpha and sparc are no longer being made.
  Support for i386 and m68k will continue until the end of this month.

  Source archives:
     http://security.debian.org/dists/slink/updates/source/nis_3.5-2.1.diff.gz
      MD5 checksum: 979ec602bf463eae2b25c1a7d6828806
     http://security.debian.org/dists/slink/updates/source/nis_3.5-2.1.dsc
      MD5 checksum: 69510c35dbca3a0be81f67fc9af0e8be
     http://security.debian.org/dists/slink/updates/source/nis_3.5.orig.tar.gz
      MD5 checksum: 368167b1e16eb25ac639935310a26daa

  Intel ia32 architecture:
    
http://security.debian.org/dists/slink/updates/binary-i386/nis_3.5-2.1_i386.deb
      MD5 checksum: 8400a6695d570315106391cab7108347

  Motorola 680x0 architecture:
 
http://security.debian.org/dists/slink/updates/binary-m68k/nis_3.5-2.1_m68k.deb
      MD5 checksum: d330f7a091a215f63181b9acee69661b

Debian GNU/Linux 2.2 alias potato
- ---------------------------------

  Potato was released for alpha, arm, i386, m68k, powerpc and sparc.

  Alpha architecture:
    
http://security.debian.org/dists/stable/updates/main/binary-alpha/nis_3.8-0.1_alpha.deb
      MD5 checksum: 1e361e5a9671c02eafdddeee4071f2cb

  Source archives:
    
http://security.debian.org/dists/stable/updates/main/source/nis_3.8-0.1.diff.gz
      MD5 checksum: e15a7c09037c25fbd30c4721d683d068
     http://security.debian.org/dists/stable/updates/main/source/nis_3.8-0.1.dsc
      MD5 checksum: 53d579eafd697b23cc0dba76a4566c2e
    
http://security.debian.org/dists/stable/updates/main/source/nis_3.8.orig.tar.gz
      MD5 checksum: 69bd8aa6b24cb22266cdc04354d3e287

  ARM architecture:
    
http://security.debian.org/dists/stable/updates/main/binary-arm/nis_3.8-0.1_arm.deb
      MD5 checksum: a1ba8db1065c56a1d18c063f6a69218b

  Intel ia32 architecture:
    
http://security.debian.org/dists/stable/updates/main/binary-i386/nis_3.8-0.1_i386.deb
      MD5 checksum: b1a4588f81c0fda4815172d5a2bee134

  PowerPC architecture:
    
http://security.debian.org/dists/stable/updates/main/binary-powerpc/nis_3.8-0.1_powerpc.deb
      MD5 checksum: 5ac411b1d68da664649c1828962ee985

  Sun Sparc architecture:
    
http://security.debian.org/dists/stable/updates/main/binary-sparc/nis_3.8-0.1_sparc.deb
      MD5 checksum: 063c6e424da6ad714a3be5e85be034b9

  These files will be moved into
   ftp://ftp.debian.org/debian/dists/stable/*/binary-$arch/ soon.

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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