Bug 553648 (CVE-2010-1626)

Summary:

CVE-2010-1626 mysql: table destruction via DATA/INDEX DIRECTORY directives using symlinks

Product:

[Other] Security Response

Reporter:

Tomas Hoger <thoger>

Component:

vulnerability

Assignee:

Red Hat Product Security <security-response-team>

Status:

CLOSED ERRATA

QA Contact:

Severity:

low

Docs Contact:

Priority:

low

Version:

unspecified

CC:

bressers, kvolny, tgl

Target Milestone:

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Keywords:

Security

Target Release:

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Hardware:

All

OS:

Linux

Whiteboard:

Fixed In Version:

Doc Type:

Bug Fix

Doc Text:

Story Points:

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Clone Of:

Environment:

Last Closed:

2011-07-28 19:14:51 UTC

Type:

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Regression:

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Documentation:

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CRM:

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Category:

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oVirt Team:

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RHEL 7.3 requirements from Atomic Host:

Cloudforms Team:

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Target Upstream Version:

Embargoed:

Bug Depends On:

590598, 592874, 592875, 833942

Bug Blocks:

Attachments:

Description	Flags
Patch backported to 5.0.77, EL5	none

Description Tomas Hoger 2010-01-08 14:40:09 UTC

Ingo Strüwing reported another problem related to CVE-2008-2079 / CVE-2008-4098.  A user with with privileges to CREATE / DROP tables in some MySQL database with shell access to the database server can remove data file for other tables using MyISAM storage engine, even in different databases.

Issue was first mentioned in upstream bug:
  http://bugs.mysql.com/bug.php?id=39277
  http://bugs.mysql.com/file.php?id=10707&text=1

Issue is tracked upstream via (previously public, but currently restricted) bug:
  http://bugs.mysql.com/bug.php?id=40980

Problem has not upstream fix yet.

More details can be found in:
  https://bugzilla.redhat.com/show_bug.cgi?id=543619#c4

Comment 1 Tomas Hoger 2010-01-19 15:49:09 UTC

Mitigation:
Disable use of table symbolic links in setups where (untrusted) database users with CREATE / DROP TABLE privileges also have a shell access to the database server.  This can be achieved by adding 'symbolic-links=0' or 'skip-symbolic-links' to '[mysqld]' section of the my.cnf configuration file.  See MySQL reference manual for further details:

http://dev.mysql.com/doc/refman/5.0/en/symbolic-links-to-tables.html

This was added as a default for future Fedora and RHEL versions (bug #553652).

Comment 2 Tomas Hoger 2010-05-10 09:25:26 UTC

Fixed upstream in 5.1.46:
http://dev.mysql.com/doc/refman/5.1/en/news-5-1-46.html

via following commit:
http://bazaar.launchpad.net/~mysql/mysql-server/mysql-5.1-bugteam/revision/3351.37.1

Comment 5 Fedora Update System 2010-05-10 09:49:12 UTC

mysql-5.1.46-1.fc11 has been submitted as an update for Fedora 11.
http://admin.fedoraproject.org/updates/mysql-5.1.46-1.fc11

Comment 6 Fedora Update System 2010-05-10 09:49:59 UTC

mysql-5.1.46-1.fc12 has been submitted as an update for Fedora 12.
http://admin.fedoraproject.org/updates/mysql-5.1.46-1.fc12

Comment 7 Fedora Update System 2010-05-10 09:50:10 UTC

mysql-5.1.46-1.fc13 has been submitted as an update for Fedora 13.
http://admin.fedoraproject.org/updates/mysql-5.1.46-1.fc13

Comment 8 Fedora Update System 2010-05-13 19:25:11 UTC

mysql-5.1.46-1.fc13 has been pushed to the Fedora 13 stable repository.  If problems still persist, please make note of it in this bug report.

Comment 9 Fedora Update System 2010-05-13 19:27:08 UTC

mysql-5.1.46-1.fc11 has been pushed to the Fedora 11 stable repository.  If problems still persist, please make note of it in this bug report.

Comment 10 Fedora Update System 2010-05-13 19:32:20 UTC

mysql-5.1.46-1.fc12 has been pushed to the Fedora 12 stable repository.  If problems still persist, please make note of it in this bug report.

Comment 12 Tomas Hoger 2010-05-20 13:13:48 UTC

Created attachment 415408 [details]
Patch backported to 5.0.77, EL5

Comment 16 errata-xmlrpc 2010-05-26 14:57:50 UTC

This issue has been addressed in following products:

  Red Hat Enterprise Linux 5

Via RHSA-2010:0442 https://rhn.redhat.com/errata/RHSA-2010-0442.html