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Gentoo Linux Security Advisory GLSA 200510-02 |
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http://security.gentoo.org/ |
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Severity: Normal |
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Title: Berkeley MPEG Tools: Multiple insecure temporary files |
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Date: October 03, 2005 |
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Bugs: #107344 |
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ID: 200510-02 |
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Synopsis |
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======== |
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|
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The Berkeley MPEG Tools use temporary files in various insecure ways, |
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potentially allowing a local user to overwrite arbitrary files. |
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Background |
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========== |
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|
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The Berkeley MPEG Tools are a collection of utilities for manipulating |
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MPEG video technology, including an encoder (mpeg_encode) and various |
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conversion utilities. |
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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 media-video/mpeg-tools < 1.5b-r2 >= 1.5b-r2 |
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|
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Description |
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=========== |
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|
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Mike Frysinger of the Gentoo Security Team discovered that mpeg_encode |
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and the conversion utilities were creating temporary files with |
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predictable or fixed filenames. The 'test' make target of the MPEG |
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Tools also relied on several temporary files created insecurely. |
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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 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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the utilities are executed (or 'make test' is run), this would result |
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in the file being overwritten with the rights of the user running the |
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command. |
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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 Berkeley MPEG Tools users should upgrade to the latest version: |
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# emerge --sync |
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# emerge --ask --oneshot --verbose ">=media-video/mpeg-tools-1.5b-r2" |
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|
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References |
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========== |
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[ 1 ] CAN-2005-3115 |
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http://cve.mitre.org/cgi-bin/cvename.cgi?name=CAN-2005-3115 |
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|
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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-200510-02.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 2005 Gentoo Foundation, Inc; referenced text |
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belongs to its owner(s). |
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|
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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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