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<?xml version="1.0" encoding="utf-8"?>
<glsa id="200510-04">
<title>Texinfo: Insecure temporary file creation</title>
Texinfo is vulnerable to symlink attacks, potentially allowing a local user
to overwrite arbitrary files.
<product type="ebuild">Texinfo</product>
<announced>October 05, 2005</announced>
<revised>October 05, 2005: 01</revised>
<package name="sys-apps/texinfo" auto="yes" arch="*">
<unaffected range="ge">4.8-r1</unaffected>
<vulnerable range="lt">4.8-r1</vulnerable>
Texinfo is the official documentation system created by the GNU
Frank Lichtenheld has discovered that the "sort_offline()"
function in texindex insecurely creates temporary files with
predictable filenames.
<impact type="normal">
A local attacker could create symbolic links in the temporary
files directory, pointing to a valid file somewhere on the filesystem.
When texindex is executed, this would result in the file being
overwritten with the rights of the user running the application.
There is no known workaround at this time.
All Texinfo users should upgrade to the latest version:
# emerge --sync
# emerge --ask --oneshot --verbose &quot;&gt;=sys-apps/texinfo-4.8-r1&quot;</code>
<uri link="">CAN-2005-3011</uri>
<metadata tag="requester" timestamp="Thu, 29 Sep 2005 14:54:06 +0000">
<metadata tag="submitter" timestamp="Thu, 29 Sep 2005 19:15:57 +0000">
<metadata tag="bugReady" timestamp="Sat, 01 Oct 2005 09:53:58 +0000">