--- title: "CVE-2013-6408\n | Ubuntu" description: Ubuntu is an open source software operating system that runs from the desktop, to the cloud, to all your internet connected things. url: https://ubuntu.com/security/CVE-2013-6408?format=md keywords: index, follow --- # CVE-2013-6408 Publication date 7 December 2013 Last updated 4 August 2025 --- Ubuntu priority **Medium** [Why this priority?](https://ubuntu.com/security/cves/about#priority ) Toggle side navigation ## Description The DocumentAnalysisRequestHandler in Apache Solr before 4.3.1 does not properly use the EmptyEntityResolver, which allows remote attackers to have an unspecified impact via XML data containing an external entity declaration in conjunction with an entity reference, related to an XML External Entity (XXE) issue. NOTE: this vulnerability exists because of an incomplete fix for CVE-2013-6407. ## Status Show unmaintained releases | Package | Ubuntu Release | Status | | --- | --- | --- | | lucene-solr | 16.10 yakkety | Not affected | | 16.04 LTS xenial | Not affected | | 15.10 wily | Ignored end of life | | 15.04 vivid | Ignored end of life | | 14.10 utopic | Ignored end of life | | 14.04 LTS trusty | Not affected | | 13.10 saucy | Ignored end of life | | 13.04 raring | Ignored end of life | | 12.10 quantal | Ignored end of life | | 12.04 LTS precise | Not in release | | 10.04 LTS lucid | Not in release | --- * [How can I get the fixes?](https://ubuntu.com/security/cves/about#security) * [What do statuses mean?](https://ubuntu.com/security/cves/about#statuses) ## References * [MITRE](https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2013-6408) * [NVD](https://nvd.nist.gov/vuln/detail/CVE-2013-6408) * [Launchpad](https://launchpad.net/bugs/cve/CVE-2013-6408) * [Debian](https://security-tracker.debian.org/tracker/CVE-2013-6408) ### Other references * * *