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Message-ID: <20050123220927.GA32288@tomservo.ne1.client2.attbi.c> From: lewk at gentoo.org (Luke Macken) Subject: [ GLSA 200501-33 ] MySQL: Insecure temporary file creation - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Gentoo Linux Security Advisory GLSA 200501-33 - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - http://security.gentoo.org/ - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Severity: Normal Title: MySQL: Insecure temporary file creation Date: January 23, 2005 Bugs: #77805 ID: 200501-33 - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 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@...too.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 -------------- next part -------------- A non-text attachment was scrubbed... Name: not available Type: application/pgp-signature Size: 189 bytes Desc: not available Url : http://lists.grok.org.uk/pipermail/full-disclosure/attachments/20050123/9280f048/attachment.bin
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