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[CLA-2004:888] Conectiva Security Announcement - libtiff3



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CONECTIVA LINUX SECURITY ANNOUNCEMENT 
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PACKAGE   : libtiff3
SUMMARY   : Fixes for libtiff vulnerabilities
DATE      : 2004-11-08 11:19:00
ID        : CLA-2004:888
RELEVANT
RELEASES  : 9, 10

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DESCRIPTION
 libtiff[1] is a library for handling TIFF images.
 
 This announcement fixes several integer overflow vulnerabilities that
 were encountered in libtiff.
 
 The fixed vulnerabilities are:
 
 CAN-2004-0803: Chris Evans encountered several problems in the RLE
 (Run Length Encoding) decoders that could lead to an arbitrary code
 execution vulnerability through a specially crafted image.
 
 CAN-2004-0804: Matthias Clasen encountered a division by zero through
 an integer overflow that could lead to a denial of service
 vulnerability which could be triggered by a specially crafted image.
 
 CAN-2004-0886: Dmitry V. Levin encountered several integer overflows
 that caused malloc issues which could result in either plain a crash
 or memory corruption.


SOLUTION
 It is recommended that all libtiff users upgrade their packages.
 
 IMPORTANT: all applications linked against libff must be restarted
 after the upgrade in order to close the vulnerabilities.
 
 
 REFERENCES
 1.http://www.libtiff.org
 2.http://cve.mitre.org/cgi-bin/cvename.cgi?name=CAN-2004-0803
 3.http://cve.mitre.org/cgi-bin/cvename.cgi?name=CAN-2004-0804
 4.http://cve.mitre.org/cgi-bin/cvename.cgi?name=CAN-2004-0886


UPDATED PACKAGES
ftp://atualizacoes.conectiva.com.br/10/SRPMS/libtiff3-3.5.7-53035U10_1cl.src.rpm
ftp://atualizacoes.conectiva.com.br/10/RPMS/libtiff-devel-3.5.7-53035U10_1cl.i386.rpm
ftp://atualizacoes.conectiva.com.br/10/RPMS/libtiff-devel-static-3.5.7-53035U10_1cl.i386.rpm
ftp://atualizacoes.conectiva.com.br/10/RPMS/libtiff-progs-3.5.7-53035U10_1cl.i386.rpm
ftp://atualizacoes.conectiva.com.br/10/RPMS/libtiff3-3.5.7-53035U10_1cl.i386.rpm
ftp://atualizacoes.conectiva.com.br/9/SRPMS/libtiff3-3.5.7-8492U90_1cl.src.rpm
ftp://atualizacoes.conectiva.com.br/9/RPMS/libtiff-devel-3.5.7-8492U90_1cl.i386.rpm
ftp://atualizacoes.conectiva.com.br/9/RPMS/libtiff-devel-static-3.5.7-8492U90_1cl.i386.rpm
ftp://atualizacoes.conectiva.com.br/9/RPMS/libtiff-progs-3.5.7-8492U90_1cl.i386.rpm
ftp://atualizacoes.conectiva.com.br/9/RPMS/libtiff3-3.5.7-8492U90_1cl.i386.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 regarding 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) 2004 Conectiva Inc.
http://www.conectiva.com

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