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Mit einem standard User Account und einem speziell preparierten Client kann man MySQL crashen.
Quelle: http://www.security-gui.de
Code:
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| EnGarde Secure Linux Security Advisory February 20, 2003 |
| [url]http://www.engardelinux.org/[/url] ESA-20030220-004 |
| |
| Packages: MySQL, MySQL-client, MySQL-shared |
| Summary: MySQL double free vulnerability. |
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EnGarde Secure Linux is a secure distribution of Linux that features
improved access control, host and network intrusion detection, Web
based secure remote management, e-commerce, and integrated open source
security tools.
OVERVIEW
- --------
This update fixes a double free() bug in the MySQL daemon that could
allow an attacker, with a specially crafted MySQL client, to crash the
server. The attacker also requires a valid user account.
The Common Vulnerabilities and Exposures project (cve.mitre.org) has
assigned the name CAN-2003-0073 to this issue.
All users are recommended to upgrade as soon as soon as possible.
SOLUTION
- --------
Users of the EnGarde Professional edition can use the Guardian Digital
Secure Network to update their systems automatically.
EnGarde Community users should upgrade to the most recent version
as outlined in this advisory. Updates may be obtained from:
[url]ftp://ftp.engardelinux.org/pub/engarde/stable/updates/[/url]
[url]http://ftp.engardelinux.org/pub/engarde/stable/updates/[/url]
Before upgrading the package, the machine must either:
a) be booted into a "standard" kernel; or
b) have LIDS disabled.
To disable LIDS, execute the command:
# /sbin/lidsadm -S -- -LIDS_GLOBAL
To install the updated package, execute the command:
# rpm -Uvh files
You must now update the LIDS configuration by executing the command:
# /usr/sbin/config_lids.pl
To re-enable LIDS (if it was disabled), execute the command:
# /sbin/lidsadm -S -- +LIDS_GLOBAL
To verify the signatures of the updated packages, execute the command:
# rpm -Kv files
UPDATED PACKAGES
- ----------------
These updated packages are for EnGarde Secure Linux Community
Edition.
Source Packages:
SRPMS/MySQL-3.23.36-1.0.22.src.rpm
MD5 Sum: 0e29acc9b6de43aa36c39a45b51f50ee
Binary Packages:
i386/MySQL-3.23.36-1.0.22.i386.rpm
MD5 Sum: 5326e9561a5fa3a4fe141f85eaf952cc
i386/MySQL-client-3.23.36-1.0.22.i386.rpm
MD5 Sum: d85c85c2e0aaddab775e616208ce81c6
i386/MySQL-shared-3.23.36-1.0.22.i386.rpm
MD5 Sum: 0226c8ee2d6d196130f730ce3fed3568
i686/MySQL-3.23.36-1.0.22.i686.rpm
MD5 Sum: 8346d78f2a51c24372e0561be75896ce
i686/MySQL-client-3.23.36-1.0.22.i686.rpm
MD5 Sum: 4a955ebf6e116a5df38653bd9f27d6cd
i686/MySQL-shared-3.23.36-1.0.22.i686.rpm
MD5 Sum: 2a5a37357c64bb067be740f95aa1b93a
REFERENCES
- ----------
Guardian Digital's public key:
[url]http://ftp.engardelinux.org/pub/engarde/ENGARDE-GPG-KEY[/url]
MySQL's Official Web Site:
[url]http://www.mysql.com/[/url]
Security Contact: [email]security@guardiandigital.com[/email]
EnGarde Advisories: [url]http://www.engardelinux.org/advisories.html[/url]
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$Id: ESA-20030220-004-mysql,v 1.1 2003/02/20 16:23:30 rwm Exp $
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Author: Ryan W. Maple
Copyright 2003, Guardian Digital, Inc.
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