{"id":"UBUNTU-CVE-2022-25236","details":"xmlparse.c in Expat (aka libexpat) before 2.4.5 allows attackers to insert namespace-separator characters into namespace URIs.","modified":"2026-05-28T06:59:12.292970192Z","published":"2022-02-15T00:00:00Z","related":["USN-5288-1","USN-5455-1","USN-8235-1","USN-8240-1","USN-8241-1","USN-8313-1","USN-8314-1","USN-8316-1"],"upstream":["CVE-2022-25236"],"references":[{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2022-25236"},{"type":"REPORT","url":"https://github.com/libexpat/libexpat/pull/561"},{"type":"REPORT","url":"https://github.com/libexpat/libexpat/pull/561/commits/a2fe525e660badd64b6c557c2b1ec26ddc07f6e4"},{"type":"REPORT","url":"https://github.com/libexpat/libexpat/pull/561/commits/2de077423fb22750ebea599677d523b53cb93b1d"},{"type":"REPORT","url":"https://github.com/libexpat/libexpat/pull/577"},{"type":"ADVISORY","url":"https://ubuntu.com/security/notices/USN-5288-1"},{"type":"ADVISORY","url":"https://ubuntu.com/security/notices/USN-5455-1"},{"type":"REPORT","url":"https://www.cve.org/CVERecord?id=CVE-2022-25236"},{"type":"ADVISORY","url":"https://ubuntu.com/security/notices/USN-8241-1"},{"type":"ADVISORY","url":"https://ubuntu.com/security/notices/USN-8240-1"},{"type":"ADVISORY","url":"https://ubuntu.com/security/notices/USN-8235-1"},{"type":"ADVISORY","url":"https://ubuntu.com/security/notices/USN-8313-1"},{"type":"ADVISORY","url":"https://ubuntu.com/security/notices/USN-8314-1"},{"type":"ADVISORY","url":"https://ubuntu.com/security/notices/USN-8316-1"}],"affected":[{"package":{"name":"expat","ecosystem":"Ubuntu:Pro:14.04:LTS","purl":"pkg:deb/ubuntu/expat?arch=source&distro=trusty%2Fesm"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2.1.0-4ubuntu1.4+esm4"}]}],"versions":["2.1.0-4","2.1.0-4ubuntu1","2.1.0-4ubuntu1.1","2.1.0-4ubuntu1.2","2.1.0-4ubuntu1.3","2.1.0-4ubuntu1.4","2.1.0-4ubuntu1.4+esm1","2.1.0-4ubuntu1.4+esm2"],"ecosystem_specific":{"availability":"Available 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