{"id":"USN-4274-1","summary":"libxml2 vulnerabilities","details":"It was discovered that libxml2 incorrectly handled certain XML files.\nAn attacker could possibly use this issue to cause a denial of service.\n(CVE-2019-19956, CVE-2020-7595)\n","modified":"2026-02-10T04:41:46Z","published":"2020-02-10T14:04:28Z","related":["UBUNTU-CVE-2019-19956","UBUNTU-CVE-2020-7595"],"upstream":["CVE-2019-19956","CVE-2020-7595","UBUNTU-CVE-2019-19956","UBUNTU-CVE-2020-7595"],"references":[{"type":"ADVISORY","url":"https://ubuntu.com/security/notices/USN-4274-1"},{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2019-19956"},{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2020-7595"}],"affected":[{"package":{"name":"libxml2","ecosystem":"Ubuntu:Pro:14.04:LTS","purl":"pkg:deb/ubuntu/libxml2@2.9.1+dfsg1-3ubuntu4.13+esm1?arch=source&distro=trusty/esm"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2.9.1+dfsg1-3ubuntu4.13+esm1"}]}],"versions":["2.9.1+dfsg1-3ubuntu2","2.9.1+dfsg1-3ubuntu3","2.9.1+dfsg1-3ubuntu4","2.9.1+dfsg1-3ubuntu4.1","2.9.1+dfsg1-3ubuntu4.2","2.9.1+dfsg1-3ubuntu4.3","2.9.1+dfsg1-3ubuntu4.4","2.9.1+dfsg1-3ubuntu4.5","2.9.1+dfsg1-3ubuntu4.6","2.9.1+dfsg1-3ubuntu4.7","2.9.1+dfsg1-3ubuntu4.8","2.9.1+dfsg1-3ubuntu4.9","2.9.1+dfsg1-3ubuntu4.10","2.9.1+dfsg1-3ubuntu4.11","2.9.1+dfsg1-3ubuntu4.12","2.9.1+dfsg1-3ubuntu4.13"],"ecosystem_specific":{"binaries":[{"binary_version":"2.9.1+dfsg1-3ubuntu4.13+esm1","binary_name":"libxml2"},{"binary_version":"2.9.1+dfsg1-3ubuntu4.13+esm1","binary_name":"libxml2-dev"},{"binary_version":"2.9.1+dfsg1-3ubuntu4.13+esm1","binary_name":"libxml2-utils"},{"binary_version":"2.9.1+dfsg1-3ubuntu4.13+esm1","binary_name":"python-libxml2"}],"availability":"Available with Ubuntu Pro (Infra-only): https://ubuntu.com/pro"},"database_specific":{"cves_map":{"ecosystem":"Ubuntu:Pro:14.04:LTS","cves":[{"severity":[{"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":"CVSS_V3"},{"score":"low","type":"Ubuntu"}],"id":"CVE-2019-19956"},{"severity":[{"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":"CVSS_V3"},{"score":"low","type":"Ubuntu"}],"id":"CVE-2020-7595"}]},"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/usn/USN-4274-1.json"}},{"package":{"name":"libxml2","ecosystem":"Ubuntu:16.04:LTS","purl":"pkg:deb/ubuntu/libxml2@2.9.3+dfsg1-1ubuntu0.7?arch=source&distro=xenial"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2.9.3+dfsg1-1ubuntu0.7"}]}],"versions":["2.9.2+zdfsg1-4","2.9.2+zdfsg1-4ubuntu1","2.9.2+zdfsg1-4ubuntu2","2.9.2+zdfsg1-4ubuntu3","2.9.3+dfsg1-1","2.9.3+dfsg1-1ubuntu0.1","2.9.3+dfsg1-1ubuntu0.2","2.9.3+dfsg1-1ubuntu0.3","2.9.3+dfsg1-1ubuntu0.4","2.9.3+dfsg1-1ubuntu0.5","2.9.3+dfsg1-1ubuntu0.6"],"ecosystem_specific":{"binaries":[{"binary_version":"2.9.3+dfsg1-1ubuntu0.7","binary_name":"libxml2"},{"binary_version":"2.9.3+dfsg1-1ubuntu0.7","binary_name":"libxml2-dev"},{"binary_version":"2.9.3+dfsg1-1ubuntu0.7","binary_name":"libxml2-utils"},{"binary_version":"2.9.3+dfsg1-1ubuntu0.7","binary_name":"python-libxml2"}],"availability":"No subscription required"},"database_specific":{"cves_map":{"ecosystem":"Ubuntu:16.04:LTS","cves":[{"severity":[{"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":"CVSS_V3"},{"score":"low","type":"Ubuntu"}],"id":"CVE-2019-19956"},{"severity":[{"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":"CVSS_V3"},{"score":"low","type":"Ubuntu"}],"id":"CVE-2020-7595"}]},"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/usn/USN-4274-1.json"}},{"package":{"name":"libxml2","ecosystem":"Ubuntu:18.04:LTS","purl":"pkg:deb/ubuntu/libxml2@2.9.4+dfsg1-6.1ubuntu1.3?arch=source&distro=bionic"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2.9.4+dfsg1-6.1ubuntu1.3"}]}],"versions":["2.9.4+dfsg1-4ubuntu1","2.9.4+dfsg1-5ubuntu1","2.9.4+dfsg1-5ubuntu2","2.9.4+dfsg1-5.1ubuntu1","2.9.4+dfsg1-5.2ubuntu1","2.9.4+dfsg1-6.1ubuntu1","2.9.4+dfsg1-6.1ubuntu1.2"],"ecosystem_specific":{"binaries":[{"binary_version":"2.9.4+dfsg1-6.1ubuntu1.3","binary_name":"libxml2"},{"binary_version":"2.9.4+dfsg1-6.1ubuntu1.3","binary_name":"libxml2-dev"},{"binary_version":"2.9.4+dfsg1-6.1ubuntu1.3","binary_name":"libxml2-utils"},{"binary_version":"2.9.4+dfsg1-6.1ubuntu1.3","binary_name":"python-libxml2"},{"binary_version":"2.9.4+dfsg1-6.1ubuntu1.3","binary_name":"python3-libxml2"}],"availability":"No subscription required"},"database_specific":{"cves_map":{"ecosystem":"Ubuntu:18.04:LTS","cves":[{"severity":[{"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":"CVSS_V3"},{"score":"low","type":"Ubuntu"}],"id":"CVE-2019-19956"},{"severity":[{"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":"CVSS_V3"},{"score":"low","type":"Ubuntu"}],"id":"CVE-2020-7595"}]},"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/usn/USN-4274-1.json"}}],"schema_version":"1.7.3"}