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Gentoo Linux Security Advisory GLSA 200407-01 |
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http://security.gentoo.org/ |
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Severity: Normal |
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Title: Esearch: Insecure temp file handling |
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Date: July 01, 2004 |
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Bugs: #55424 |
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ID: 200407-01 |
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Synopsis |
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======== |
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|
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The eupdatedb utility in esearch creates a file in /tmp without first |
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checking for symlinks. This makes it possible for any user to create |
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arbitrary files. |
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|
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Background |
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========== |
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|
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Esearch is a replacement for the Portage command "emerge search". It |
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uses an index to speed up searching of the Portage tree. |
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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 app-portage/esearch <= 0.6.1 >= 0.6.2 |
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|
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Description |
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=========== |
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|
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The eupdatedb utility uses a temporary file (/tmp/esearchdb.py.tmp) to |
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indicate that the eupdatedb process is running. When run, eupdatedb |
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checks to see if this file exists, but it does not check to see if it |
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is a broken symlink. In the event that the file is a broken symlink, |
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the script will create the file pointed to by the symlink, instead of |
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printing an error and exiting. |
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|
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Impact |
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====== |
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|
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An attacker could create a symlink from /tmp/esearchdb.py.tmp to a |
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nonexistent file (such as /etc/nologin), and the file will be created |
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the next time esearchdb is run. |
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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. All users should upgrade to |
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the latest available version of esearch. |
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|
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Resolution |
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========== |
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All users should upgrade to the latest available version of esearch, as |
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follows: |
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# emerge sync |
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# emerge -pv ">=app-portage/esearch-0.6.2" |
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# emerge ">=app-portage/esearch-0.6.2" |
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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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|
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http://security.gentoo.org/glsa/glsa-200407-01.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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|
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Copyright 2004 Gentoo Technologies, 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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|
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http://creativecommons.org/licenses/by-sa/1.0 |
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