{"id":"UBUNTU-CVE-2017-9233","details":"XML External Entity vulnerability in libexpat 2.2.0 and earlier (Expat XML Parser Library) allows attackers to put the parser in an infinite loop using a malformed external entity definition from an external DTD.","modified":"2026-05-28T04:15:06.482213973Z","published":"2017-06-21T00:00:00Z","related":["USN-3356-1","USN-3356-2","USN-4825-1"],"upstream":["CVE-2017-9233"],"references":[{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2017-9233"},{"type":"REPORT","url":"https://libexpat.github.io/doc/cve-2017-9233/"},{"type":"ADVISORY","url":"https://ubuntu.com/security/notices/USN-3356-1"},{"type":"ADVISORY","url":"https://ubuntu.com/security/notices/USN-3356-2"},{"type":"ADVISORY","url":"https://ubuntu.com/security/notices/USN-4825-1"},{"type":"REPORT","url":"https://www.cve.org/CVERecord?id=CVE-2017-9233"}],"affected":[{"package":{"name":"expat","ecosystem":"Ubuntu:14.04:LTS","purl":"pkg:deb/ubuntu/expat?arch=source&distro=trusty"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2.1.0-4ubuntu1.4"}]}],"versions":["2.1.0-4","2.1.0-4ubuntu1","2.1.0-4ubuntu1.1","2.1.0-4ubuntu1.2","2.1.0-4ubuntu1.3"],"ecosystem_specific":{"binaries":[{"binary_name":"expat","binary_version":"2.1.0-4ubuntu1.4"},{"binary_name":"lib64expat1","binary_version":"2.1.0-4ubuntu1.4"},{"binary_name":"libexpat1","binary_version":"2.1.0-4ubuntu1.4"}],"availability":"No 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