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Gentoo Linux Security Advisory GLSA 200409-02 |
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http://security.gentoo.org/ |
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Severity: Normal |
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Title: MySQL: Insecure temporary file creation in mysqlhotcopy |
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Date: September 01, 2004 |
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Bugs: #60744 |
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ID: 200409-02 |
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Synopsis |
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======== |
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|
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The mysqlhotcopy utility can create temporary files with predictable |
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paths, allowing an attacker to use a symlink to trick MySQL into |
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overwriting important data. |
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Background |
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========== |
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MySQL is a popular open-source multi-threaded, multi-user SQL database |
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server. |
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|
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Affected packages |
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================= |
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|
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------------------------------------------------------------------- |
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Package / Vulnerable / Unaffected |
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------------------------------------------------------------------- |
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1 dev-db/mysql <= 4.0.20 >= 4.0.20-r1 |
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Description |
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=========== |
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|
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Jeroen van Wolffelaar discovered that the MySQL database hot copy |
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utility (mysqlhotcopy.sh), when using the scp method, uses temporary |
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files with predictable names. A malicious local user with write access |
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to the /tmp directory could create a symbolic link pointing to a file, |
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which may then be overwritten. In cases where mysqlhotcopy is run as |
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root, a malicious user could create a symlink to a critical file such |
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as /etc/passwd and cause it to be overwritten. |
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|
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Impact |
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====== |
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|
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A local attacker could use this vulnerability to destroy other users' |
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data or corrupt and destroy system files, possibly leading to a denial |
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of service condition. |
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|
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Workaround |
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========== |
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There is no known workaround at this time. |
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Resolution |
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========== |
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All MySQL users should upgrade to the latest version: |
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# emerge sync |
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# emerge -pv ">=dev-db/mysql-4.0.20-r1" |
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# emerge ">=dev-db/mysql-4.0.20-r1" |
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|
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References |
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========== |
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|
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[ 1 ] CAN-2004-0457 |
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http://cve.mitre.org/cgi-bin/cvename.cgi?name=CAN-2004-0457 |
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|
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Availability |
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============ |
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|
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This GLSA and any updates to it are available for viewing at |
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the Gentoo Security Website: |
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http://security.gentoo.org/glsa/glsa-200409-02.xml |
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Concerns? |
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========= |
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Security is a primary focus of Gentoo Linux and ensuring the |
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confidentiality and security of our users machines is of utmost |
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importance to us. Any security concerns should be addressed to |
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security@g.o or alternatively, you may file a bug at |
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http://bugs.gentoo.org. |
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|
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License |
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======= |
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Copyright 2004 Gentoo Foundation, Inc; referenced text |
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belongs to its owner(s). |
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The contents of this document are licensed under the |
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Creative Commons - Attribution / Share Alike license. |
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http://creativecommons.org/licenses/by-sa/1.0 |
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