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Home » Hacking News » SuSE Security Announcement: mysql (SuSE-SA:2003:003)

SuSE Security Announcement: mysql (SuSE-SA:2003:003)

by Nikola Strahija on January 3rd, 2003 Content of this advisory: 1) security vulnerability resolved: Signedness issue and password checking in mysqld, buffer overflow in mysqlclient library. problem description, discussion, solution and upgrade information 2) pending vulnerabilities, solutions, workarounds: grub 3) standard appendix (further information)


1) problem description, brief discussion, solution, upgrade information

Stefan Esser from e-matters reported various bugs in MySQL. Within the
MySQL server the password checking and a signedness issue has been fixed.
These could lead to a remote compromise of the system running an unpatched
MySQL server. In order to exploit this bug, the remote attacker needs a
valid MySQL account.
Further, a buffer overflow in the mysqlclient library has been reported
and fixed. Applications using this library (as commonly used from within
PHP scripts) are vulnerable to this attack and could also be compromised
by remote attackers.

Since there is no workaround possible except shutting down the MySQL
server, we strongly recommend an update.

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.

To be sure the update takes effect you have to restart the MySQL server
by executing the following command as root:

/etc/rc.d/mysql restart

If you run applications which utilize the mysqlclient library (i.e. software
that accesses a MySQL database server) make sure you restart them again to
force the use of the patched libraries.

We thank MySQL Product and Release Engineer Lenz Grimmer as well as
e-matters Stefan Esser who discovered the bugs for their committment to
security matters and the communication of them.


i386 Intel Platform:

SuSE-8.1:
ftp://ftp.suse.com/pub/suse/i386/update/8.1/rpm/i586/mysql-3.23.52-44.i586.rpm
3d6ede325e9abb155ec043c7b3406963
ftp://ftp.suse.com/pub/suse/i386/update/8.1/rpm/i586/mysql-client-3.23.52-44.i586.rpm
7de01d80d0d04ef09c16d490da20eb80
ftp://ftp.suse.com/pub/suse/i386/update/8.1/rpm/i586/mysql-devel-3.23.52-44.i586.rpm
1b04831d6c838ee98ae76626b632640a
patch rpm(s):
ftp://ftp.suse.com/pub/suse/i386/update/8.1/rpm/i586/mysql-3.23.52-44.i586.patch.rpm
6e054f2f7a2f698d45424f939031b59f
ftp://ftp.suse.com/pub/suse/i386/update/8.1/rpm/i586/mysql-client-3.23.52-44.i586.patch.rpm
4339ae7b1bf4c792529eec784d0dbf9a
ftp://ftp.suse.com/pub/suse/i386/update/8.1/rpm/i586/mysql-devel-3.23.52-44.i586.patch.rpm
c797f92a05aff6cf202597e5b132e91a
source rpm(s):
ftp://ftp.suse.com/pub/suse/i386/update/8.1/rpm/src/mysql-3.23.52-44.src.rpm
d9ee023e43fe6fba95a2d06a74ecc7de

SuSE-8.0:
ftp://ftp.suse.com/pub/suse/i386/update/8.0/ap2/mysql-3.23.48-78.i386.rpm
690c230feee9f1fe70c1c749a2869002
ftp://ftp.suse.com/pub/suse/i386/update/8.0/ap2/mysql-client-3.23.48-78.i386.rpm
c9f595ef30a4b509145343d71e2883a3
ftp://ftp.suse.com/pub/suse/i386/update/8.0/ap3/mysql-devel-3.23.48-78.i386.rpm
cebe56578cda9c7e2abf66f37b5f4e92
patch rpm(s):
ftp://ftp.suse.com/pub/suse/i386/update/8.0/ap2/mysql-3.23.48-78.i386.patch.rpm
a895a353044c5f1e3b3e3ad604154b44
ftp://ftp.suse.com/pub/suse/i386/update/8.0/ap2/mysql-client-3.23.48-78.i386.patch.rpm
f25cf16f4137087358fca3afb483a060
ftp://ftp.suse.com/pub/suse/i386/update/8.0/ap3/mysql-devel-3.23.48-78.i386.patch.rpm
51a37bc09a2166985f64dcb3ca32b310
source rpm(s):
ftp://ftp.suse.com/pub/suse/i386/update/8.0/zq1/mysql-3.23.48-78.src.rpm
8ef39453726a5718dfd04e96d4dda563

SuSE-7.3:
ftp://ftp.suse.com/pub/suse/i386/update/7.3/ap3/mysql-3.23.44-24.i386.rpm
4f77fbc7eed3d2a59a6bb1c6bd531fa5
ftp://ftp.suse.com/pub/suse/i386/update/7.3/ap3/mysql-client-3.23.44-24.i386.rpm
ed5c6dec77a1d3ae7104648174cc3436
ftp://ftp.suse.com/pub/suse/i386/update/7.3/ap3/mysql-devel-3.23.44-24.i386.rpm
3a42e424582dacec4b0e9b16efac6139
source rpm(s):
ftp://ftp.suse.com/pub/suse/i386/update/7.3/zq1/mysql-3.23.44-24.src.rpm
88c7853aed32efcb6574f778dd232ba1

SuSE-7.2:
ftp://ftp.suse.com/pub/suse/i386/update/7.2/ap3/mysql-3.23.37-58.i386.rpm
938cbbe502417853db0f775bb8e92c44
ftp://ftp.suse.com/pub/suse/i386/update/7.2/ap3/mysql-client-3.23.37-58.i386.rpm
7a7512942891bf6e1f4b720040904ba5
ftp://ftp.suse.com/pub/suse/i386/update/7.2/ap3/mysql-devel-3.23.37-58.i386.rpm
57735d0f9785f6fc77788f3b13b332f5
source rpm(s):
ftp://ftp.suse.com/pub/suse/i386/update/7.2/zq1/mysql-3.23.37-58.src.rpm
6f38945f2b4f75102ac99b2dc3428b8d

SuSE-7.1:
ftp://ftp.suse.com/pub/suse/i386/update/7.1/ap3/mysql-3.23.33-28.i386.rpm
a9d713d2a0a31984978824b4f125639d
ftp://ftp.suse.com/pub/suse/i386/update/7.1/ap3/mysql-client-3.23.33-28.i386.rpm
90161c0e243abc25144a55604b2e2f09
ftp://ftp.suse.com/pub/suse/i386/update/7.1/ap3/mysql-devel-3.23.33-28.i386.rpm
c49b07eec14807229b52290a22813f8d
source rpm(s):
ftp://ftp.suse.com/pub/suse/i386/update/7.1/zq1/mysql-3.23.33-28.src.rpm
0bb214ca23113955fc0f130f20c1fd39


Sparc Platform:

SuSE-7.3:
ftp://ftp.suse.com/pub/suse/sparc/update/7.3/ap3/mysql-3.23.44-21.sparc.rpm
e3296fa34a5cfd176242edfda6e376a2
ftp://ftp.suse.com/pub/suse/sparc/update/7.3/ap3/mysql-client-3.23.44-21.sparc.rpm
e96d4daefea1651404d8c9cfebaec942
ftp://ftp.suse.com/pub/suse/sparc/update/7.3/ap3/mysql-devel-3.23.44-21.sparc.rpm
afb5dfad0a91e744eb6e57f70ad1472b
source rpm(s):
ftp://ftp.suse.com/pub/suse/sparc/update/7.3/zq1/mysql-3.23.44-21.src.rpm
17cededbc0bfc0090a9b7def28289c70


AXP Alpha Platform:

SuSE-7.1:
ftp://ftp.suse.com/pub/suse/axp/update/7.1/ap3/mysql-3.23.33-19.alpha.rpm
c1da6b2e077c630d3d15241cf2009df2
ftp://ftp.suse.com/pub/suse/axp/update/7.1/ap3/mysql-client-3.23.33-19.alpha.rpm
67aecaf18483d7f269eac1bd1729630b
ftp://ftp.suse.com/pub/suse/axp/update/7.1/ap3/mysql-devel-3.23.33-19.alpha.rpm
23ce1f6ad353d636869b76e8af11036b
source rpm(s):
ftp://ftp.suse.com/pub/suse/axp/update/7.1/zq1/mysql-3.23.33-19.src.rpm
abafa3a973f2890d2c5909f485c195ae


PPC Power PC Platform:

SuSE-7.3:
ftp://ftp.suse.com/pub/suse/ppc/update/7.3/ap3/mysql-3.23.44-29.ppc.rpm
0a1726674eb97da908d847682b864a0f
ftp://ftp.suse.com/pub/suse/ppc/update/7.3/ap3/mysql-client-3.23.44-29.ppc.rpm
470881fcae2294ed3adcb98d68a98b09
ftp://ftp.suse.com/pub/suse/ppc/update/7.3/ap3/mysql-devel-3.23.44-29.ppc.rpm
9b19744767d031e42ea02e4afc02126e
source rpm(s):
ftp://ftp.suse.com/pub/suse/ppc/update/7.3/zq1/mysql-3.23.44-29.src.rpm
9da2de99332ea5b276e98ff28ae22760

SuSE-7.1:
ftp://ftp.suse.com/pub/suse/ppc/update/7.1/ap3/mysql-3.23.33-20.ppc.rpm
f30776f31ca3e7b0875a939d53a9a974
ftp://ftp.suse.com/pub/suse/ppc/update/7.1/ap3/mysql-client-3.23.33-20.ppc.rpm
38f22162c25e04e3b640cc37c2730bbd
ftp://ftp.suse.com/pub/suse/ppc/update/7.1/ap3/mysql-devel-3.23.33-20.ppc.rpm
fc444c30aa506a592be3c3498246dc63
source rpm(s):
ftp://ftp.suse.com/pub/suse/ppc/update/7.1/zq1/mysql-3.23.33-20.src.rpm
6cc3ab3601383b99b1da4959c1aa4961


______________________________________________________________________________

2) Pending vulnerabilities in SuSE Distributions and Workarounds:

- grub
The grub boot manager allows users with physical access to the
terminal to circumvent the password protection from grub. Fixed
packages will soon be available.

______________________________________________________________________________

3) 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
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 [email protected]),
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
to verify the signature of the package, where 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 "[email protected]" 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:

[email protected]
- general/linux/SuSE security discussion.
All SuSE security announcements are sent to this list.
To subscribe, send an email to
.

[email protected]
- SuSE's announce-only mailing list.
Only SuSE's security announcements are sent to this list.
To subscribe, send an email to
.

For general information or the frequently asked questions (faq)
send mail to:
or
respectively.


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