CVE-2013-0340
Published: 21 January 2014
expat 2.1.0 and earlier does not properly handle entities expansion unless an application developer uses the XML_SetEntityDeclHandler function, which allows remote attackers to cause a denial of service (resource consumption), send HTTP requests to intranet servers, or read arbitrary files via a crafted XML document, aka an XML External Entity (XXE) issue. NOTE: it could be argued that because expat already provides the ability to disable external entity expansion, the responsibility for resolving this issue lies with application developers; according to this argument, this entry should be REJECTed, and each affected application would need its own CVE.
Notes
Author | Note |
---|---|
jdstrand | PoC in oss-sec no upstream commits as of 2013-03-21. Contacted upstream on their (possibly moderated) expat-bugs mailing list since their bug tracker was down still no commits or upstream comments as of 2013-04-23 |
mdeslaur | Expat does not read or parse external entities directly, it is up to applications to do so. http://seclists.org/oss-sec/2013/q2/78 marking as ignored, application-specific CVEs should be assigned to individual applications. |
seth-arnold | upstream libexpat has introduced heuristics in 2.4.0 to limit the damage due to various entity expansion issues. These fixes won't be backported to previous releases due to the risk of regression due to the size, complexity, and new APIs. |
Priority
Status
Package | Release | Status |
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apache2 Launchpad, Ubuntu, Debian |
hardy |
Ignored
(end of life)
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lucid |
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oneiric |
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precise |
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raring |
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upstream |
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apr-util Launchpad, Ubuntu, Debian |
hardy |
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lucid |
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oneiric |
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precise |
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raring |
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upstream |
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audacity Launchpad, Ubuntu, Debian |
hardy |
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lucid |
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ayttm Launchpad, Ubuntu, Debian |
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cableswig Launchpad, Ubuntu, Debian |
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cadaver Launchpad, Ubuntu, Debian |
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celementtree Launchpad, Ubuntu, Debian |
hardy |
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cmake Launchpad, Ubuntu, Debian |
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precise |
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coin3 Launchpad, Ubuntu, Debian |
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expat Launchpad, Ubuntu, Debian |
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upstream |
Released
(2.4.0)
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gdcm Launchpad, Ubuntu, Debian |
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Does not exist
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lucid |
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ghostscript Launchpad, Ubuntu, Debian |
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grmonitor Launchpad, Ubuntu, Debian |
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insighttoolkit Launchpad, Ubuntu, Debian |
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kompozer Launchpad, Ubuntu, Debian |
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libparagui1.1 Launchpad, Ubuntu, Debian |
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precise |
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matanza Launchpad, Ubuntu, Debian |
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paraview Launchpad, Ubuntu, Debian |
hardy |
Does not exist
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lucid |
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precise |
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poco Launchpad, Ubuntu, Debian |
hardy |
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lucid |
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precise |
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raring |
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python-xml Launchpad, Ubuntu, Debian |
hardy |
Ignored
(end of life)
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lucid |
Does not exist
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precise |
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python2.4 Launchpad, Ubuntu, Debian |
hardy |
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lucid |
Does not exist
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python2.5 Launchpad, Ubuntu, Debian |
hardy |
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Does not exist
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python2.6 Launchpad, Ubuntu, Debian |
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Does not exist
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(end of life)
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(end of life)
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precise |
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simgear Launchpad, Ubuntu, Debian |
hardy |
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(end of life)
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(end of life)
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sitecopy Launchpad, Ubuntu, Debian |
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smart Launchpad, Ubuntu, Debian |
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swish-e Launchpad, Ubuntu, Debian |
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tdom Launchpad, Ubuntu, Debian |
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(end of life)
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texlive-bin Launchpad, Ubuntu, Debian |
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tla Launchpad, Ubuntu, Debian |
hardy |
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(end of life)
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lucid |
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(end of life)
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precise |
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vnc4 Launchpad, Ubuntu, Debian |
hardy |
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lucid |
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(end of life)
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precise |
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vtk Launchpad, Ubuntu, Debian |
hardy |
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(end of life)
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lucid |
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oneiric |
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(end of life)
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precise |
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raring |
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w3c-libwww Launchpad, Ubuntu, Debian |
hardy |
Ignored
(end of life)
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lucid |
Does not exist
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wbxml2 Launchpad, Ubuntu, Debian |
hardy |
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lucid |
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wxwidgets2.6 Launchpad, Ubuntu, Debian |
hardy |
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lucid |
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(end of life)
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precise |
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wxwidgets2.8 Launchpad, Ubuntu, Debian |
hardy |
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(end of life)
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lucid |
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(end of life)
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wxwindows2.4 Launchpad, Ubuntu, Debian |
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(end of life)
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xmlrpc-c Launchpad, Ubuntu, Debian |
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(end of life)
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xotcl Launchpad, Ubuntu, Debian |
hardy |
Does not exist
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lucid |
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(end of life)
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xulrunner Launchpad, Ubuntu, Debian |
hardy |
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(end of life)
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lucid |
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