From: secure@conectiva.com.br
To: conectiva-updates@papaleguas.conectiva.com.br, lwn@lwn.net,
bugtraq@securityfocus.com, security-alerts@linuxsecurity.com
Subject: [CLA-2002:481] Conectiva Linux Security Announcement - imlib
Date: Wed, 8 May 2002 13:26:44 -0300
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CONECTIVA LINUX SECURITY ANNOUNCEMENT
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PACKAGE : imlib
SUMMARY : Potential vulnerabilities in imlib
DATE : 2002-05-08 13:25:00
ID : CLA-2002:481
RELEVANT
RELEASES : 8
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DESCRIPTION
Imlib is a library that allows X11 programs to use images of various
file formats.
Alan Cox discovered some situations where a heap corruption[1] may
occur when processing some malformed image.
Al Viro found that imlib was falling back to the NetPBM library[2]
when processing some kind of images, but NetPBM is not suitable to
process untrusted image input.
An attacker could use a crafted image to exploit a program linked to
imlib (like a mailer program or an image viewer) and cause a DoS or
even remote code execution.
This update to imlib 1.9.14 solves both problems and adds some fixes
from the imlib developers.
Notice that the update[3] for Conectiva Linux versions prior to 8 was
released on 03/28/2002.
SOLUTION
All users of imlib should do the upgrade. Notice that the
vulnerabilities can be exploited through programs linked to imlib
(like the "Electric Eyes" image viewer), so you should restart them
in order to load the updated imlib.
REFERENCES:
1.http://online.securityfocus.com/bid/4336
2.http://online.securityfocus.com/bid/4339
3.http://distro.conectiva.com.br/atualizacoes/?id=a&anuncio=000470
DIRECT DOWNLOAD LINKS TO THE UPDATED PACKAGES
ftp://atualizacoes.conectiva.com.br/8/RPMS/imlib-1.9.14-1U8_1cl.i386.rpm
ftp://atualizacoes.conectiva.com.br/8/RPMS/imlib-cfgeditor-1.9.14-1U8_1cl.i386.rpm
ftp://atualizacoes.conectiva.com.br/8/RPMS/imlib-devel-1.9.14-1U8_1cl.i386.rpm
ftp://atualizacoes.conectiva.com.br/8/RPMS/imlib-devel-static-1.9.14-1U8_1cl.i386.rpm
ftp://atualizacoes.conectiva.com.br/8/SRPMS/imlib-1.9.14-1U8_1cl.src.rpm
ADDITIONAL INSTRUCTIONS
Users of Conectiva Linux version 6.0 or higher may use apt to perform
upgrades of RPM packages:
- add the following line to /etc/apt/sources.list if it is not there yet
(you may also use linuxconf to do this):
rpm [cncbr] ftp://atualizacoes.conectiva.com.br 6.0/conectiva updates
(replace 6.0 with the correct version number if you are not running CL6.0)
- 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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