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Gentoo Linux Advisories: fetchmail, mysql, squirrelmail, exim

Dec 16, 2002, 21:59 (1 Talkback[s])

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GENTOO LINUX SECURITY ANNOUNCEMENT 200212-3
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PACKAGE : fetchmail
SUMMARY : buffer overflow
DATE    : 2002-12-15 13:12 UTC
EXPLOIT : remote

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- From e-matters advisory:

"In the light of recent discoveries we reaudited Fetchmail and found
another bufferoverflow within the default configuration. This heap
overflow can be used by remote attackers to crash it or to execute 
arbitrary code with the privileges of the user running fetchmail. 
Depending on the configuration this allows a remote root compromise."

Read the full advisory at
http://security.e-matters.de/advisories/052002.html

SOLUTION

It is recommended that all Gentoo Linux users who are running
net-mail/fetchmail-6.1.2 and earlier update their systems as follows:

emerge rsync
emerge fetchmail
emerge clean

- - --------------------------------------------------------------------
aliz@gentoo.org - GnuPG key is available at www.gentoo.org/~aliz
avenj@gentoo.org
- - --------------------------------------------------------------------

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GENTOO LINUX SECURITY ANNOUNCEMENT 200212-2
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PACKAGE : mysql
SUMMARY : remote DOS and arbitrary code execution
DATE    : 2002-12-15 12:12 UTC
EXPLOIT : remote

- - --------------------------------------------------------------------

- From e-matters advisory:

"We have discovered two flaws within the MySQL server that can be used
by any MySQL user to crash the server. Furthermore one of the flaws can
be used to bypass the MySQL password check or to execute arbitrary code
with the privileges of the user running mysqld.
   
We have also discovered an arbitrary size heap overflow within the mysql
client library and another vulnerability that allows to write '\0' to any
memory address. Both flaws could allow DOS attacks against or arbitrary
code execution within anything linked against libmysqlclient."

Read the full advisory at
http://security.e-matters.de/advisories/042002.html

SOLUTION

It is recommended that all Gentoo Linux users who are running
net-misc/freeswan-3.23.53 and earlier update their systems as follows:

emerge rsync
emerge mysql
emerge clean

- - --------------------------------------------------------------------
aliz@gentoo.org - GnuPG key is available at www.gentoo.org/~aliz
woodchip@gentoo.org
- - --------------------------------------------------------------------

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GENTOO LINUX SECURITY ANNOUNCEMENT 200212-4
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PACKAGE : squirrelmail
SUMMARY : cross site scripting
DATE    : 2002-12-15 14:12 UTC
EXPLOIT : remote

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euronymous <just-a-user@yandex.ru> found that read_body.php didn't 
filter out user input for 'filter_dir' and 'mailbox', making a xss
attack possible.

Read the full advisory at
http://f0kp.iplus.ru/bz/008.txt

SOLUTION

It is recommended that all Gentoo Linux users who are running
net-mail/squirrelmail-1.2.9 and earlier update their systems as follows:

emerge rsync
emerge squirrelmail
emerge clean

- - --------------------------------------------------------------------
aliz@gentoo.org - GnuPG key is available at www.gentoo.org/~aliz
- - --------------------------------------------------------------------

- - --------------------------------------------------------------------
GENTOO LINUX SECURITY ANNOUNCEMENT 200212-2.1
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PACKAGE : mysql
SUMMARY : remote DOS and arbitrary code execution
DATE    : 2002-12-15 12:12 UTC
EXPLOIT : remote

- - --------------------------------------------------------------------

The original advisory sent by me contained a typo (net-misc/freeswan
should have been dev-db/mysql). This re-issue has the correct text.

- From e-matters advisory:

"We have discovered two flaws within the MySQL server that can be used
by any MySQL user to crash the server. Furthermore one of the flaws can
be used to bypass the MySQL password check or to execute arbitrary code
with the privileges of the user running mysqld.
   
We have also discovered an arbitrary size heap overflow within the mysql
client library and another vulnerability that allows to write '\0' to any
memory address. Both flaws could allow DOS attacks against or arbitrary
code execution within anything linked against libmysqlclient."

Read the full advisory at
http://security.e-matters.de/advisories/042002.html

SOLUTION

It is recommended that all Gentoo Linux users who are running
dev-db/mysql-3.23.53 and earlier update their systems as follows:

emerge rsync
emerge mysql
emerge clean

- - --------------------------------------------------------------------
aliz@gentoo.org - GnuPG key is available at www.gentoo.org/~aliz
woodchip@gentoo.org
- - --------------------------------------------------------------------


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GENTOO LINUX SECURITY ANNOUNCEMENT 200212-5
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PACKAGE : exim
SUMMARY : local root vulnerability
DATE    : 2002-12-16 16:12 UTC
EXPLOIT : local

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- From advisory:

"This is a format string bug in daemon.c, line 976:

sprintf(CS buff, CS pid_file_path, "");   /* Backward compatibility */

pid_file_path can be changed on the command line.
This line is in the function daemon_go(), which only
gets executed when the user is an exim-admin-user."

Read the full advisory at
http://marc.theaimsgroup.com/?l=bugtraq&m=103903403527788&w=2

SOLUTION

It is recommended that all Gentoo Linux users who are running
net-mail/exim-4.05 and earlier update their systems as follows:

emerge rsync
emerge exim
emerge clean

- - --------------------------------------------------------------------
aliz@gentoo.org - GnuPG key is available at www.gentoo.org/~aliz
raker@gentoo.org
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