{"id":"USN-5455-1","summary":"libxmltok vulnerabilities","details":"Tim Boddy, Gustavo Grieco and others discovered that Expat, that is\nintegrated in xmltok library, incorrectly handled certain files.\nAn attacker could possibly use these issues to cause a denial of\nservice, or possibly execute arbitrary code. These issues were only\naddressed in Ubuntu 16.04 ESM. (CVE-2012-1148, CVE-2015-1283,\nCVE-2016-0718, CVE-2016-4472, CVE-2018-20843, CVE-2019-15903,\nCVE-2021-46143, CVE-2022-22822, CVE-2022-22823, CVE-2022-22824,\nCVE-2022-22825, CVE-2022-22826, CVE-2022-22827)\n\nIt was discovered that Expat, that is integrated in xmltok library,\nincorrectly handled encoding validation of certain files. An attacker\ncould possibly use this issue to cause a denial of service, or\npossibly execute arbitrary code. (CVE-2022-25235)\n\nIt was discovered that Expat, that is integrated in xmltok library,\nincorrectly handled namespace URIs of certain files. An attacker\ncould possibly use this issue to cause a denial of service, or\npossibly execute arbitrary code. (CVE-2022-25236)\n\n","modified":"2026-02-10T04:42:38Z","published":"2022-07-19T17:11:00Z","related":["UBUNTU-CVE-2012-1148","UBUNTU-CVE-2015-1283","UBUNTU-CVE-2016-0718","UBUNTU-CVE-2016-4472","UBUNTU-CVE-2018-20843","UBUNTU-CVE-2019-15903","UBUNTU-CVE-2021-46143","UBUNTU-CVE-2022-22822","UBUNTU-CVE-2022-22823","UBUNTU-CVE-2022-22824","UBUNTU-CVE-2022-22825","UBUNTU-CVE-2022-22826","UBUNTU-CVE-2022-22827","UBUNTU-CVE-2022-25235","UBUNTU-CVE-2022-25236"],"upstream":["CVE-2012-1148","CVE-2015-1283","CVE-2016-0718","CVE-2016-4472","CVE-2018-20843","CVE-2019-15903","CVE-2021-46143","CVE-2022-22822","CVE-2022-22823","CVE-2022-22824","CVE-2022-22825","CVE-2022-22826","CVE-2022-22827","CVE-2022-25235","CVE-2022-25236","UBUNTU-CVE-2012-1148","UBUNTU-CVE-2015-1283","UBUNTU-CVE-2016-0718","UBUNTU-CVE-2016-4472","UBUNTU-CVE-2018-20843","UBUNTU-CVE-2019-15903","UBUNTU-CVE-2021-46143","UBUNTU-CVE-2022-22822","UBUNTU-CVE-2022-22823","UBUNTU-CVE-2022-22824","UBUNTU-CVE-2022-22825","UBUNTU-CVE-2022-22826","UBUNTU-CVE-2022-22827","UBUNTU-CVE-2022-25235","UBUNTU-CVE-2022-25236"],"references":[{"type":"ADVISORY","url":"https://ubuntu.com/security/notices/USN-5455-1"},{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2012-1148"},{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2015-1283"},{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2016-0718"},{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2016-4472"},{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2018-20843"},{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2019-15903"},{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2021-46143"},{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2022-22822"},{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2022-22823"},{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2022-22824"},{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2022-22825"},{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2022-22826"},{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2022-22827"},{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2022-25235"},{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2022-25236"}],"affected":[{"package":{"name":"libxmltok","ecosystem":"Ubuntu:Pro:16.04:LTS","purl":"pkg:deb/ubuntu/libxmltok@1.2-3ubuntu0.16.04.1~esm2?arch=source&distro=esm-apps/xenial"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.2-3ubuntu0.16.04.1~esm2"}]}],"versions":["1.2-3build3","1.2-3ubuntu0.16.04.1~esm1"],"ecosystem_specific":{"availability":"Available with Ubuntu Pro: https://ubuntu.com/pro","binaries":[{"binary_name":"libxmltok1","binary_version":"1.2-3ubuntu0.16.04.1~esm2"},{"binary_name":"libxmltok1-dev","binary_version":"1.2-3ubuntu0.16.04.1~esm2"}]},"database_specific":{"cves_map":{"ecosystem":"Ubuntu:Pro:16.04:LTS","cves":[{"id":"CVE-2012-1148","severity":[{"type":"Ubuntu","score":"low"}]},{"id":"CVE-2015-1283","severity":[{"type":"Ubuntu","score":"medium"}]},{"id":"CVE-2016-0718","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H"},{"type":"Ubuntu","score":"medium"}]},{"id":"CVE-2016-4472","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H"},{"type":"Ubuntu","score":"medium"}]},{"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"}]},{"id":"CVE-2019-15903","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:R/S:U/C:N/I:N/A:H"},{"type":"Ubuntu","score":"medium"}]},{"id":"CVE-2022-22822","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H"},{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H"},{"type":"Ubuntu","score":"medium"}]},{"id":"CVE-2022-22823","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H"},{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H"},{"type":"Ubuntu","score":"medium"}]},{"id":"CVE-2022-22824","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H"},{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H"},{"type":"Ubuntu","score":"medium"}]},{"id":"CVE-2022-22825","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H"},{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H"},{"type":"Ubuntu","score":"medium"}]},{"id":"CVE-2022-22826","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H"},{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H"},{"type":"Ubuntu","score":"medium"}]},{"id":"CVE-2022-22827","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H"},{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H"},{"type":"Ubuntu","score":"medium"}]},{"id":"CVE-2022-25235","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H"},{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H"},{"type":"Ubuntu","score":"high"}]},{"id":"CVE-2022-25236","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H"},{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H"},{"type":"Ubuntu","score":"high"}]}]},"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/usn/USN-5455-1.json"}},{"package":{"name":"libxmltok","ecosystem":"Ubuntu:Pro:18.04:LTS","purl":"pkg:deb/ubuntu/libxmltok@1.2-4ubuntu0.18.04.1~esm1?arch=source&distro=esm-apps/bionic"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.2-4ubuntu0.18.04.1~esm1"}]}],"versions":["1.2-4"],"ecosystem_specific":{"availability":"Available with Ubuntu Pro: https://ubuntu.com/pro","binaries":[{"binary_name":"libxmltok1","binary_version":"1.2-4ubuntu0.18.04.1~esm1"},{"binary_name":"libxmltok1-dev","binary_version":"1.2-4ubuntu0.18.04.1~esm1"}]},"database_specific":{"cves_map":{"ecosystem":"Ubuntu:Pro:18.04:LTS","cves":[{"id":"CVE-2022-25235","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H"},{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H"},{"type":"Ubuntu","score":"high"}]},{"id":"CVE-2022-25236","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H"},{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H"},{"type":"Ubuntu","score":"high"}]}]},"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/usn/USN-5455-1.json"}},{"package":{"name":"libxmltok","ecosystem":"Ubuntu:Pro:20.04:LTS","purl":"pkg:deb/ubuntu/libxmltok@1.2-4ubuntu0.20.04.1~esm1?arch=source&distro=esm-apps/focal"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.2-4ubuntu0.20.04.1~esm1"}]}],"versions":["1.2-4"],"ecosystem_specific":{"availability":"Available with Ubuntu Pro: https://ubuntu.com/pro","binaries":[{"binary_name":"libxmltok1","binary_version":"1.2-4ubuntu0.20.04.1~esm1"},{"binary_name":"libxmltok1-dev","binary_version":"1.2-4ubuntu0.20.04.1~esm1"}]},"database_specific":{"cves_map":{"ecosystem":"Ubuntu:Pro:20.04:LTS","cves":[{"id":"CVE-2022-25235","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H"},{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H"},{"type":"Ubuntu","score":"high"}]},{"id":"CVE-2022-25236","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H"},{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H"},{"type":"Ubuntu","score":"high"}]}]},"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/usn/USN-5455-1.json"}},{"package":{"name":"libxmltok","ecosystem":"Ubuntu:Pro:22.04:LTS","purl":"pkg:deb/ubuntu/libxmltok@1.2-4ubuntu0.22.04.1~esm1?arch=source&distro=esm-apps/jammy"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.2-4ubuntu0.22.04.1~esm1"}]}],"versions":["1.2-4"],"ecosystem_specific":{"availability":"Available with Ubuntu Pro: https://ubuntu.com/pro","binaries":[{"binary_name":"libxmltok1","binary_version":"1.2-4ubuntu0.22.04.1~esm1"},{"binary_name":"libxmltok1-dev","binary_version":"1.2-4ubuntu0.22.04.1~esm1"}]},"database_specific":{"cves_map":{"ecosystem":"Ubuntu:Pro:22.04:LTS","cves":[{"id":"CVE-2022-25235","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H"},{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H"},{"type":"Ubuntu","score":"high"}]},{"id":"CVE-2022-25236","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H"},{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H"},{"type":"Ubuntu","score":"high"}]}]},"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/usn/USN-5455-1.json"}}],"schema_version":"1.7.3"}