{"id":"USN-4040-2","summary":"expat vulnerability","details":"USN-4040-1 fixed a vulnerability in expat. This update provides\nthe corresponding update for Ubuntu 12.04 ESM and Ubuntu 14.04 ESM.\n\nOriginal advisory details:\n\n It was discovered that Expat incorrectly handled certain XML files.\n An attacker could possibly use this issue to cause a denial of service.\n","modified":"2026-02-10T04:41:34Z","published":"2019-06-26T19:44:22Z","related":["UBUNTU-CVE-2018-20843"],"upstream":["CVE-2018-20843","UBUNTU-CVE-2018-20843"],"references":[{"type":"ADVISORY","url":"https://ubuntu.com/security/notices/USN-4040-2"},{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2018-20843"}],"affected":[{"package":{"name":"expat","ecosystem":"Ubuntu:Pro:14.04:LTS","purl":"pkg:deb/ubuntu/expat@2.1.0-4ubuntu1.4+esm1?arch=source&distro=trusty/esm"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2.1.0-4ubuntu1.4+esm1"}]}],"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"],"ecosystem_specific":{"availability":"Available with Ubuntu Pro (Infra-only): https://ubuntu.com/pro","binaries":[{"binary_name":"expat","binary_version":"2.1.0-4ubuntu1.4+esm1"},{"binary_name":"lib64expat1","binary_version":"2.1.0-4ubuntu1.4+esm1"},{"binary_name":"lib64expat1-dev","binary_version":"2.1.0-4ubuntu1.4+esm1"},{"binary_name":"libexpat1","binary_version":"2.1.0-4ubuntu1.4+esm1"},{"binary_name":"libexpat1-dev","binary_version":"2.1.0-4ubuntu1.4+esm1"}]},"database_specific":{"cves_map":{"cves":[{"id":"CVE-2018-20843","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H"},{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H"},{"type":"Ubuntu","score":"low"}]}],"ecosystem":"Ubuntu:Pro:14.04:LTS"},"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/usn/USN-4040-2.json"}}],"schema_version":"1.7.3"}