SUSE Security Announcement: MySQL vulnerabilities
Posted on: 03/25/2005 05:56 AM

Updated MySQL packages are available for SUSE Linux:

______________________________________________________________________________

SUSE Security Announcement

Package: mysql
Announcement-ID: SUSE-SA:2005:019
Date: Thu, 24 Mar 2005 16:00:00 +0000
Affected products: 8.2, 9.0, 9.1, 9.2
SUSE Linux Desktop 1.0
SUSE Linux Enterprise Server 8, 9
Novell Linux Desktop 9
Vulnerability Type: remote code execution
Severity (1-10): 6
SUSE default package: no
Cross References: CAN-2005-0709
CAN-2005-0710
CAN-2005-0711

Content of this advisory:
1) security vulnerability resolved:
security problems in mysql
problem description
2) solution/workaround
3) special instructions and notes
4) package location and checksums
5) pending vulnerabilities, solutions, workarounds:
See SUSE Security Summary Report (after Easter).

6) standard appendix (further information)

______________________________________________________________________________

1) problem description, brief discussion

MySQL is an Open Source database server, commonly used together with
web services provided by PHP scripts or similar.

This security update fixes a broken mysqlhotcopy script as well as
several security related bugs:

- CAN-2005-0709: MySQL allowed remote authenticated users with
INSERT and DELETE privileges to execute arbitrary code by using
CREATE FUNCTION to access libc calls, as demonstrated by using strcat,
on_exit, and exit.

- CAN-2005-0710: MySQL allowed remote authenticated users with
INSERT and DELETE privileges to bypass library path restrictions
and execute arbitrary libraries by using INSERT INTO to modify the
mysql.func table, which is processed by the udf_init function.

- CAN-2005-0711: MySQL used predictable file names when creating
temporary tables, which allows local users with CREATE TEMPORARY
TABLE privileges to overwrite arbitrary files via a symlink attack.


The first two vulnerabilities can be exploited by an attacker using
SQL inject attack vectors into a flawed PHP application for instance.


2) solution/workaround

None. Please install the updated packages.

3) special instructions and notes

Please restart the mysql database server update the update by
running as root:

/sbin/rcmysql try-restart


4) package location and checksums

Please download the update package for your distribution and verify its
integrity by the methods listed in section 3) of this announcement.
Then, install the package using the command "rpm -Fhv file.rpm" to apply
the update.
Our maintenance customers are being notified individually. The packages
are being offered to install from the maintenance web.


x86 Platform:

SUSE Linux 9.2:
ftp://ftp.suse.com/pub/suse/i386/update/9.2/rpm/i586/mysql-4.0.21-4.4.i586.rpm
9060e74c421f30d85d24d9029c6779b3
ftp://ftp.suse.com/pub/suse/i386/update/9.2/rpm/i586/mysql-Max-4.0.21-4.4.i586.rpm
66f6252369c5297629a3643d169776cf

SUSE Linux 9.1:
ftp://ftp.suse.com/pub/suse/i386/update/9.1/rpm/i586/mysql-4.0.18-32.13.i586.rpm
a485a73bb70f87a8921b5a12c4b27658
ftp://ftp.suse.com/pub/suse/i386/update/9.1/rpm/i586/mysql-Max-4.0.18-32.13.i586.rpm
0ab12a132ed5abe038457a538acf4ac3
source rpm(s):
ftp://ftp.suse.com/pub/suse/i386/update/9.1/rpm/src/mysql-4.0.18-32.13.src.rpm
63d0ad89fb1d031409098f981d92a011

SUSE Linux 9.0:
ftp://ftp.suse.com/pub/suse/i386/update/9.0/rpm/i586/mysql-4.0.15-71.i586.rpm
a24632927f128f1325614629333bddbc
ftp://ftp.suse.com/pub/suse/i386/update/9.0/rpm/i586/mysql-Max-4.0.15-71.i586.rpm
c054fffbcbd661408573f037935a69d0
source rpm(s):
ftp://ftp.suse.com/pub/suse/i386/update/9.0/rpm/src/mysql-4.0.15-71.src.rpm
1a4d0af904c7a797f001c093c1cbc2f1

SUSE Linux 8.2:
ftp://ftp.suse.com/pub/suse/i386/update/8.2/rpm/i586/mysql-3.23.55-32.i586.rpm
4af88dde3c487b0c7fcf22cb49d02b07
ftp://ftp.suse.com/pub/suse/i386/update/8.2/rpm/i586/mysql-Max-3.23.55-32.i586.rpm
e3a53abf26170957f532ea7ac25cdcd7
source rpm(s):
ftp://ftp.suse.com/pub/suse/i386/update/8.2/rpm/src/mysql-3.23.55-32.src.rpm
a50b1b6df881d203ec215b31bc73d698

x86-64 Platform:

SUSE Linux 9.2:
ftp://ftp.suse.com/pub/suse/i386/update/9.2/rpm/x86_64/mysql-4.0.21-4.4.x86_64.rpm
6656f6ed35d92127ce298134a0624867
ftp://ftp.suse.com/pub/suse/i386/update/9.2/rpm/x86_64/mysql-Max-4.0.21-4.4.x86_64.rpm
79e4561d475e7bb2303f4ff41f553bb9
source rpm(s):
ftp://ftp.suse.com/pub/suse/i386/update/9.2/rpm/src/mysql-4.0.21-4.4.src.rpm
80b0820c075876a447a31952a67e6a5c

SUSE Linux 9.1:
ftp://ftp.suse.com/pub/suse/x86_64/update/9.1/rpm/x86_64/mysql-4.0.18-32.13.x86_64.rpm
c308aac4a2c273f983aa0a57722930b3
ftp://ftp.suse.com/pub/suse/x86_64/update/9.1/rpm/x86_64/mysql-Max-4.0.18-32.13.x86_64.rpm
d895c752111c215161e06d0bf88abf20
source rpm(s):
ftp://ftp.suse.com/pub/suse/x86_64/update/9.1/rpm/src/mysql-4.0.18-32.13.src.rpm
c5902748d9708ec5f4a76028e96de91a

SUSE Linux 9.0:
ftp://ftp.suse.com/pub/suse/x86_64/update/9.0/rpm/x86_64/mysql-4.0.15-71.x86_64.rpm
bfadabeab279bd0dccdad2cc04561e86
ftp://ftp.suse.com/pub/suse/x86_64/update/9.0/rpm/x86_64/mysql-Max-4.0.15-71.x86_64.rpm
485cc2aab05494fa7d8137bdd5ded701
source rpm(s):
ftp://ftp.suse.com/pub/suse/x86_64/update/9.0/rpm/src/mysql-4.0.15-71.src.rpm
ac5d1d6e78cbfed6307721490cf1c708


______________________________________________________________________________

5) Pending vulnerabilities in SUSE Distributions and Workarounds:

See SUSE Security Summary Report (after Easter).

______________________________________________________________________________

6) standard appendix: authenticity verification, additional information

- Package authenticity verification:

SUSE update packages are available on many mirror ftp servers all over
the world. While this service is being considered valuable and important
to the free and open source software community, many users wish to be
sure about the origin of the package and its content before installing
the package. There are two verification methods that can be used
independently from each other to prove the authenticity of a downloaded
file or rpm package:
1) md5sums as provided in the (cryptographically signed) announcement.
2) using the internal gpg signatures of the rpm package.

1) execute the command
md5sum <name-of-the-file.rpm>
after you downloaded the file from a SUSE ftp server or its mirrors.
Then, compare the resulting md5sum with the one that is listed in the
announcement. Since the announcement containing the checksums is
cryptographically signed (usually using the key security@suse.de),
the checksums show proof of the authenticity of the package.
We disrecommend to subscribe to security lists which cause the
email message containing the announcement to be modified so that
the signature does not match after transport through the mailing
list software.
Downsides: You must be able to verify the authenticity of the
announcement in the first place. If RPM packages are being rebuilt
and a new version of a package is published on the ftp server, all
md5 sums for the files are useless.

2) rpm package signatures provide an easy way to verify the authenticity
of an rpm package. Use the command
rpm -v --checksig <file.rpm>
to verify the signature of the package, where <file.rpm> is the
filename of the rpm package that you have downloaded. Of course,
package authenticity verification can only target an un-installed rpm
package file.
Prerequisites:
a) gpg is installed
b) The package is signed using a certain key. The public part of this
key must be installed by the gpg program in the directory
~/.gnupg/ under the user's home directory who performs the
signature verification (usually root). You can import the key
that is used by SUSE in rpm packages for SUSE Linux by saving
this announcement to a file ("announcement.txt") and
running the command (do "su -" to be root):
gpg --batch; gpg < announcement.txt | gpg --import
SUSE Linux distributions version 7.1 and thereafter install the
key "build@suse.de" upon installation or upgrade, provided that
the package gpg is installed. The file containing the public key
is placed at the top-level directory of the first CD (pubring.gpg)
and at ftp://ftp.suse.com/pub/suse/pubring.gpg-build.suse.de .


- SUSE runs two security mailing lists to which any interested party may
subscribe:

suse-security@suse.com
- general/linux/SUSE security discussion.
All SUSE security announcements are sent to this list.
To subscribe, send an email to
<suse-security-subscribe@suse.com>.

suse-security-announce@suse.com
- SUSE's announce-only mailing list.
Only SUSE's security announcements are sent to this list.
To subscribe, send an email to
<suse-security-announce-subscribe@suse.com>.

For general information or the frequently asked questions (faq)
send mail to:
<suse-security-info@suse.com> or
<suse-security-faq@suse.com> respectively.

====================================================================
SUSE's security contact is <security@suse.com> or <security@suse.de>.
@suse.de>.
The <security@suse.de> public key is listed below.
====================================================================
______________________________________________________________________________

The information in this advisory may be distributed or reproduced,
provided that the advisory is not modified in any way. In particular,
it is desired that the clear-text signature shows proof of the
authenticity of the text.
SUSE Linux AG makes no warranties of any kind whatsoever with respect
to the information contained in this security advisory.

Type Bits/KeyID Date User ID
pub 2048R/3D25D3D9 1999-03-06 SuSE Security Team <security@suse.de>
pub 1024D/9C800ACA 2000-10-19 SuSE Package Signing Key <build@suse.de>

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