Linux Security
    Linux Security
    Linux Security

    Debian: 'cfs' Buffer overflow vulnerability

    Date 02 Mar 2002
    Posted By LinuxSecurity Advisories
    Zorgon found several buffer overflows in cfsd, a daemon that pushesencryption services into the Unix(tm) file system.
    Debian Security Advisory DSA 116-1                     This email address is being protected from spambots. You need JavaScript enabled to view it.                             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:
          MD5 checksum: 566d05bb6f71e3a5dd194a0ceb98952a
          MD5 checksum: 7bb4cbf19e8c195f7302a025897fe44d
          MD5 checksum: cb4c5c107b77a50c25628f6655aae378
      Alpha architecture:
          MD5 checksum: 2d5b24107abe81a09d5dbd213f0d890b
      ARM architecture:
          MD5 checksum: 7712a474e4c67ce30b2a70b29a3f0f64
      Intel ia32 architecture:
          MD5 checksum: 33651b606e1fa0dc15c9d7256580df84
      Motorola 680x0 architecture:
          MD5 checksum: e6078a08a26fe831b3acfddcb6f3c8cd
      PowerPC architecture:
          MD5 checksum: cc13eb33869b2682685b5f073cd33b3c
      Sun Sparc architecture:
          MD5 checksum: 55ef017e1d3b2ca20fe5c0cf30479901
      These files will probably be moved into the stable distribution on
      its next revision.
    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.
    Package info: `apt-cache show ' and

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