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Gentoo Linux Security Advisory GLSA 200508-02 |
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http://security.gentoo.org/ |
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Severity: Normal |
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Title: ProFTPD: Format string vulnerabilities |
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Date: August 01, 2005 |
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Bugs: #100364 |
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ID: 200508-02 |
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Synopsis |
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======== |
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|
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Under specific circumstances, ProFTPD is vulnerable to format string |
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vulnerabilities, potentially resulting in the execution of arbitrary |
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code. |
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Background |
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========== |
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|
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ProFTPD is a configurable GPL-licensed FTP server software. |
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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 net-ftp/proftpd < 1.2.10-r7 >= 1.2.10-r7 |
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|
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Description |
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=========== |
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|
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"infamous42md" reported that ProFTPD is vulnerable to format string |
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vulnerabilities when displaying a shutdown message containing the name |
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of the current directory, and when displaying response messages to the |
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client using information retrieved from a database using mod_sql. |
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|
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Impact |
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====== |
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|
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A remote attacker could create a directory with a malicious name that |
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would trigger the format string issue if specific variables are used in |
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the shutdown message, potentially resulting in a Denial of Service or |
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the execution of arbitrary code with the rights of the user running the |
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ProFTPD server. An attacker with control over the database contents |
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could achieve the same result by introducing malicious messages that |
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would trigger the other format string issue when used in server |
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responses. |
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Workaround |
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========== |
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Do not use the "%C", "%R", or "%U" in shutdown messages, and do not set |
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the "SQLShowInfo" directive. |
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Resolution |
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========== |
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All ProFTPD users should upgrade to the latest version: |
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# emerge --sync |
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# emerge --ask --oneshot --verbose ">=net-ftp/proftpd-1.2.10-r7" |
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References |
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========== |
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[ 1 ] CAN-2005-2390 |
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http://www.cve.mitre.org/cgi-bin/cvename.cgi?name=CAN-2005-2390 |
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Availability |
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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-200508-02.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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License |
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======= |
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Copyright 2005 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/2.0 |
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