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Home » Hacking News » CLA-2002:475-sudo

CLA-2002:475-sudo

by Nikola Strahija on April 26th, 2002 "sudo"[1] is an utility designed to be used by administrators who wish to delegate administrative privileges to regular users for very specific commands, and without giving away the root password. Global InterSec published[3] an advisory about a memory heap corruption vulnerability[2] in sudo. This vulnerability could possibly be used by local attackers to obtain root privileges.


Sudo allows users to specify the password prompt they receive. This
prompt can contain macros (such as %h) that will be expanded by sudo.
Sudo can be tricked into allocating the wrong ammount of memory for
this prompt.


SOLUTION
It is recommended that all sudo users upgrade their packages.

REFERENCES
1. http://www.courtesan.com/sudo/
2.http://www.courtesan.com/pipermail/sudo-announce/2002-April/000020.html
3. http://www.globalintersec.com/adv/sudo-2002041701.txt


DIRECT DOWNLOAD LINKS TO THE UPDATED PACKAGES
ftp://atualizacoes.conectiva.com.br/5.0/SRPMS/sudo-1.6.6-1U50_1cl.src.rpm
ftp://atualizacoes.conectiva.com.br/5.0/i386/sudo-1.6.6-1U50_1cl.i386.rpm
ftp://atualizacoes.conectiva.com.br/5.0/i386/sudo-doc-1.6.6-1U50_1cl.i386.rpm
ftp://atualizacoes.conectiva.com.br/5.1/SRPMS/sudo-1.6.6-1U51_1cl.src.rpm
ftp://atualizacoes.conectiva.com.br/5.1/i386/sudo-1.6.6-1U51_1cl.i386.rpm
ftp://atualizacoes.conectiva.com.br/5.1/i386/sudo-doc-1.6.6-1U51_1cl.i386.rpm
ftp://atualizacoes.conectiva.com.br/6.0/SRPMS/sudo-1.6.6-1U60_1cl.src.rpm
ftp://atualizacoes.conectiva.com.br/6.0/RPMS/sudo-1.6.6-1U60_1cl.i386.rpm
ftp://atualizacoes.conectiva.com.br/6.0/RPMS/sudo-doc-1.6.6-1U60_1cl.i386.rpm
ftp://atualizacoes.conectiva.com.br/7.0/SRPMS/sudo-1.6.6-1U70_1cl.src.rpm
ftp://atualizacoes.conectiva.com.br/7.0/RPMS/sudo-1.6.6-1U70_1cl.i386.rpm
ftp://atualizacoes.conectiva.com.br/7.0/RPMS/sudo-doc-1.6.6-1U70_1cl.i386.rpm
ftp://atualizacoes.conectiva.com.br/8/SRPMS/sudo-1.6.6-1U8_1cl.src.rpm
ftp://atualizacoes.conectiva.com.br/8/RPMS/sudo-1.6.6-1U8_1cl.i386.rpm
ftp://atualizacoes.conectiva.com.br/8/RPMS/sudo-doc-1.6.6-1U8_1cl.i386.rpm
ftp://atualizacoes.conectiva.com.br/ferramentas/ecommerce/SRPMS/sudo-1.6.6-1U50_1cl.src.rpm
ftp://atualizacoes.conectiva.com.br/ferramentas/ecommerce/i386/sudo-1.6.6-1U50_1cl.i386.rpm
ftp://atualizacoes.conectiva.com.br/ferramentas/ecommerce/i386/sudo-doc-1.6.6-1U50_1cl.i386.rpm
ftp://atualizacoes.conectiva.com.br/ferramentas/graficas/SRPMS/sudo-1.6.6-1U50_1cl.src.rpm
ftp://atualizacoes.conectiva.com.br/ferramentas/graficas/i386/sudo-1.6.6-1U50_1cl.i386.rpm
ftp://atualizacoes.conectiva.com.br/ferramentas/graficas/i386/sudo-doc-1.6.6-1U50_1cl.i386.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


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

- -------------------------------------------------------------------------
subscribe: [email protected]
unsubscribe: [email protected]
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