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GLSA 200501-33: MySQL: Insecure temporary file creation
Posted by Philipp Esselbach on: 01/23/2005 05:41 PM [ Print | 0 comment(s) ]
A MySQL security update is available for Gentoo Linux
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Gentoo Linux Security Advisory GLSA 200501-33
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http://security.gentoo.org/
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Severity: Normal
Title: MySQL: Insecure temporary file creation
Date: January 23, 2005
Bugs: #77805
ID: 200501-33
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Synopsis
=======
MySQL is vulnerable to symlink attacks, potentially allowing a local user to overwrite arbitrary files.
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Gentoo Linux Security Advisory GLSA 200501-33
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http://security.gentoo.org/
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Severity: Normal
Title: MySQL: Insecure temporary file creation
Date: January 23, 2005
Bugs: #77805
ID: 200501-33
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Synopsis
=======
MySQL is vulnerable to symlink attacks, potentially allowing a local user to overwrite arbitrary files.
Background
=========
MySQL is a fast, multi-threaded, multi-user SQL database server.
Affected packages
================
-------------------------------------------------------------------
Package / Vulnerable / Unaffected
-------------------------------------------------------------------
1 dev-db/mysql < 4.0.22-r2 >= 4.0.22-r2
Description
==========
Javier Fernandez-Sanguino Pena from the Debian Security Audit Project discovered that the 'mysqlaccess' script creates temporary files in world-writeable directories with predictable names.
Impact
=====
A local attacker could create symbolic links in the temporary files directory, pointing to a valid file somewhere on the filesystem. When the mysqlaccess script is executed, this would result in the file being overwritten with the rights of the user running the software, which could be the root user.
Workaround
=========
There is no known workaround at this time.
Resolution
=========
All MySQL users should upgrade to the latest version:
# emerge --sync
# emerge --ask --oneshot --verbose ">=dev-db/mysql-4.0.22-r2"
References
=========
[ 1 ] CAN-2005-0004
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CAN-2005-0004
[ 2 ] Secunia Advisory SA13867
http://secunia.com/advisories/13867/
Availability
===========
This GLSA and any updates to it are available for viewing at the Gentoo Security Website:
http://security.gentoo.org/glsa/glsa-200501-33.xml
Concerns?
========
Security is a primary focus of Gentoo Linux and ensuring the confidentiality and security of our users machines is of utmost importance to us. Any security concerns should be addressed to security@gentoo.org or alternatively, you may file a bug at http://bugs.gentoo.org.
License
======
Copyright 2005 Gentoo Foundation, Inc; referenced text belongs to its owner(s).
The contents of this document are licensed under the Creative Commons - Attribution / Share Alike license.
http://creativecommons.org/licenses/by-sa/2.0
=========
MySQL is a fast, multi-threaded, multi-user SQL database server.
Affected packages
================
-------------------------------------------------------------------
Package / Vulnerable / Unaffected
-------------------------------------------------------------------
1 dev-db/mysql < 4.0.22-r2 >= 4.0.22-r2
Description
==========
Javier Fernandez-Sanguino Pena from the Debian Security Audit Project discovered that the 'mysqlaccess' script creates temporary files in world-writeable directories with predictable names.
Impact
=====
A local attacker could create symbolic links in the temporary files directory, pointing to a valid file somewhere on the filesystem. When the mysqlaccess script is executed, this would result in the file being overwritten with the rights of the user running the software, which could be the root user.
Workaround
=========
There is no known workaround at this time.
Resolution
=========
All MySQL users should upgrade to the latest version:
# emerge --sync
# emerge --ask --oneshot --verbose ">=dev-db/mysql-4.0.22-r2"
References
=========
[ 1 ] CAN-2005-0004
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CAN-2005-0004
[ 2 ] Secunia Advisory SA13867
http://secunia.com/advisories/13867/
Availability
===========
This GLSA and any updates to it are available for viewing at the Gentoo Security Website:
http://security.gentoo.org/glsa/glsa-200501-33.xml
Concerns?
========
Security is a primary focus of Gentoo Linux and ensuring the confidentiality and security of our users machines is of utmost importance to us. Any security concerns should be addressed to security@gentoo.org or alternatively, you may file a bug at http://bugs.gentoo.org.
License
======
Copyright 2005 Gentoo Foundation, Inc; referenced text belongs to its owner(s).
The contents of this document are licensed under the Creative Commons - Attribution / Share Alike license.
http://creativecommons.org/licenses/by-sa/2.0
