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Gentoo Linux Security Advisory GLSA 200411-17 |
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http://security.gentoo.org/ |
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Severity: Normal |
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Title: mtink: Insecure tempfile handling |
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Date: November 09, 2004 |
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Bugs: #70310 |
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ID: 200411-17 |
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Synopsis |
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======== |
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|
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mtink is vulnerable to symlink attacks, potentially allowing a local |
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user to overwrite arbitrary files with the rights of the user running |
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the utility. |
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Background |
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========== |
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|
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mtink is a status monitor and inkjet cartridge changer for some Epson |
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printers. |
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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-print/mtink < 1.0.5 >= 1.0.5 |
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Description |
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=========== |
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|
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Tavis Ormandy from Gentoo Linux discovered that mtink uses insecure |
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permissions on temporary files. |
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Impact |
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====== |
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A local attacker could create symbolic links in the temporary files |
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directory, pointing to a valid file somewhere on the filesystem. When |
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mtink is executed, this would result in the file being overwritten with |
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the rights of the user running the utility, which could be the root |
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user. |
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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 mtink users should upgrade to the latest version: |
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# emerge --sync |
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# emerge --ask --oneshot --verbose ">=net-print/mtink-1.0.5" |
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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-200411-17.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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|
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http://creativecommons.org/licenses/by-sa/2.0 |
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