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Bug 353193 (CVE-2008-5298) - app-text/chm2pdf: Insecure Temporary File Creation (CVE-2008-{5298,5299})
Summary: app-text/chm2pdf: Insecure Temporary File Creation (CVE-2008-{5298,5299})
Status: RESOLVED INVALID
Alias: CVE-2008-5298
Product: Gentoo Security
Classification: Unclassified
Component: Vulnerabilities (show other bugs)
Hardware: All Linux
: High minor (vote)
Assignee: Gentoo Security
URL: http://cve.mitre.org/cgi-bin/cvename....
Whiteboard: B3 [upstream]
Keywords:
Depends on:
Blocks:
 
Reported: 2011-01-30 04:05 UTC by Tim Sammut (RETIRED)
Modified: 2011-01-30 14:39 UTC (History)
1 user (show)

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Runtime testing required: ---

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Description Tim Sammut (RETIRED) gentoo-dev 2011-01-30 04:05:34 UTC 
chm2pdf exposes to local attacks because it create temporary files insecurely.

CVE-2008-5298, http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2008-5298
chm2pdf 0.9 uses temporary files in directories with fixed names, which allows local users to cause a denial of service (chm2pdf failure) of other users by creating those directories ahead of time. 

CVE-2008-5299, http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2008-5299
chm2pdf 0.9 allows user-assisted local users to delete arbitrary files via a symlink attack on .chm files in the (1) /tmp/chm2pdf/work or (2) /tmp/chm2pdf/orig temporary directories.
Comment 1 Tim Sammut (RETIRED) gentoo-dev 2011-01-30 14:39:41 UTC 
These issues are already fixed thanks to /usr/portage/app-text/chm2pdf/files/tempdir.patch.