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TUCoPS :: Linux :: Conectiva :: bt1312.txt

fileutils CLA-2003:768





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CONECTIVA LINUX SECURITY ANNOUNCEMENT 
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PACKAGE   : fileutils
SUMMARY   : Denial of service vulnerability (exploitable through wu-ftpd)
DATE      : 2003-10-22 16:10:00
ID        : CLA-2003:768
RELEVANT
RELEASES  : 7.0, 8, 9

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DESCRIPTION
 The fileutils package contains several basic system utilities. One of
 these utilities is the "ls" program, used to list information about
 files and directories.
 
 Georgi Guninski discovered[1] a memory starvation denial of service
 vulnerability in the ls program. It is possible to make ls allocate a
 huge amount of memory by calling it with the parameters "-w X -C"
 (where X is an arbitrary large number).
 
 This vulnerability is remotely exploitable in scenarios where remote
 applications allow an user to call ls without filtering the supplied
 parameters. An example of such scenario is the use of the wu-ftpd FTP
 server.
 
 The Common Vulnerabilities and Exposures project (cve.mitre.org) has
 assigned the name CAN-2003-0854[2] to this issue.
 
 Additionally, this update fixes an integer overflow in ls which seems
 non-exploitable. The overflow occurs in the usage of the "-w"
 parameter under the same circumstances of the aforementioned memory
 starvation vulnerability. The Common Vulnerabilities and Exposures
 project (cve.mitre.org) has assigned the name CAN-2003-0853[3] to
 this issue.


SOLUTION
 All users should upgrade.
 
 
 REFERENCES:
 1.http://www.guninski.com/binls.html
 2.http://cve.mitre.org/cgi-bin/cvename.cgi?name=CAN-2003-0854
 3.http://cve.mitre.org/cgi-bin/cvename.cgi?name=CAN-2003-0853


UPDATED PACKAGES
ftp://atualizacoes.conectiva.com.br/7.0/RPMS/fileutils-4.0-20U70_1cl.i386.rpm
ftp://atualizacoes.conectiva.com.br/7.0/SRPMS/fileutils-4.0-20U70_1cl.src.rpm
ftp://atualizacoes.conectiva.com.br/8/RPMS/fileutils-4.1-3U80_1cl.i386.rpm
ftp://atualizacoes.conectiva.com.br/8/SRPMS/fileutils-4.1-3U80_1cl.src.rpm
ftp://atualizacoes.conectiva.com.br/9/RPMS/fileutils-4.1-7779U90_1cl.i386.rpm
ftp://atualizacoes.conectiva.com.br/9/SRPMS/fileutils-4.1-7779U90_1cl.src.rpm


ADDITIONAL INSTRUCTIONS
 The apt tool can be used to perform RPM packages upgrades:

 - run:                 apt-get update
 - after that, execute: apt-get upgrade

 Detailed instructions reagarding the use of apt and upgrade examples 
 can be found at http://distro.conectiva.com.br/atualizacoes/#apt?idioma=en

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All packages are signed with Conectiva's GPG key. The key and instructions
on how to import it can be found at 
http://distro.conectiva.com.br/seguranca/chave/?idioma=en
Instructions on how to check the signatures of the RPM packages can be
found at http://distro.conectiva.com.br/seguranca/politica/?idioma=en

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All our advisories and generic update instructions can be viewed at
http://distro.conectiva.com.br/atualizacoes/?idioma=en

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Copyright (c) 2003 Conectiva Inc.
http://www.conectiva.com

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subscribe: conectiva-updates-subscribe@papaleguas.conectiva.com.br
unsubscribe: conectiva-updates-unsubscribe@papaleguas.conectiva.com.br
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