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Debian: 'cfs' Buffer overflow vulnerability Print E-mail
User Rating:      How can I rate this item?
Posted by LinuxSecurity.com Team   
Debian Zorgon found several buffer overflows in cfsd, a daemon that pushesencryption services into the Unix(tm) file system.

--------------------------------------------------------------------------
Debian Security Advisory DSA 116-1                     security@debian.org 
http://www.debian.org/security/                             Martin Schulze
March 2nd, 2002
--------------------------------------------------------------------------

Package        : cfs
Vulnerability  : buffer overflow
Problem-Type   : remote
Debian-specific: no

Zorgon found several buffer overflows in cfsd, a daemon that pushes
encryption services into the Unix(tm) file system.  We are not yet
sure if these overflows can successfully be exploited to gain root
access to the machine running the CFS daemon.  However, since cfsd can
easily be forced to die, a malicious user can easily perform a denial
of service attack to it.

This problem has been fixed in version 1.3.3-8.1 for the stable Debian
distribution and in version 1.4.1-5 for the testing and undtable
distribution of Debian.

We recommend that you upgrade your cfs package immediately.

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 2.2 alias potato
------------------------------------

  Source archives:

     http://security.debian.org/dists/stable/updates/main/source/cfs_1.3.3-8.1.dsc
      MD5 checksum: 566d05bb6f71e3a5dd194a0ceb98952a
     http://security.debian.org/dists/stable/updates/main/source/cfs_1.3.3-8.1.diff.gz
      MD5 checksum: 7bb4cbf19e8c195f7302a025897fe44d
     http://security.debian.org/dists/stable/updates/main/source/cfs_1.3.3.orig.tar.gz
      MD5 checksum: cb4c5c107b77a50c25628f6655aae378

  Alpha architecture:

     http://security.debian.org/dists/stable/updates/main/binary-alpha/cfs_1.3.3-8.1_alpha.deb
      MD5 checksum: 2d5b24107abe81a09d5dbd213f0d890b

  ARM architecture:

     http://security.debian.org/dists/stable/updates/main/binary-arm/cfs_1.3.3-8.1_arm.deb
      MD5 checksum: 7712a474e4c67ce30b2a70b29a3f0f64

  Intel ia32 architecture:

     http://security.debian.org/dists/stable/updates/main/binary-i386/cfs_1.3.3-8.1_i386.deb
      MD5 checksum: 33651b606e1fa0dc15c9d7256580df84

  Motorola 680x0 architecture:

     http://security.debian.org/dists/stable/updates/main/binary-m68k/cfs_1.3.3-8.1_m68k.deb
      MD5 checksum: e6078a08a26fe831b3acfddcb6f3c8cd

  PowerPC architecture:

     http://security.debian.org/dists/stable/updates/main/binary-powerpc/cfs_1.3.3-8.1_powerpc.deb
      MD5 checksum: cc13eb33869b2682685b5f073cd33b3c

  Sun Sparc architecture:

     http://security.debian.org/dists/stable/updates/main/binary-sparc/cfs_1.3.3-8.1_sparc.deb
      MD5 checksum: 55ef017e1d3b2ca20fe5c0cf30479901


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

---------------------------------------------------------------------------------
For apt-get: deb  http://security.debian.org/ stable/updates main
For dpkg-ftp:  ftp://security.debian.org/debian-security dists/stable/updates/main
Mailing list: debian-security-announce@lists.debian.org
Package info: `apt-cache show ' and  http://packages.debian.org/




 
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