{"id":"USN-5288-1","summary":"expat vulnerabilities","details":"It was discovered that Expat incorrectly handled certain files.\nAn attacker could possibly use this issue to cause a crash or\nexecute arbitrary code.\n","modified":"2026-05-20T16:03:12.715448483Z","published":"2022-02-21T14:48:40Z","related":["UBUNTU-CVE-2021-45960","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-2022-23852","UBUNTU-CVE-2022-23990","UBUNTU-CVE-2022-25235","UBUNTU-CVE-2022-25236"],"upstream":["CVE-2021-45960","CVE-2021-46143","CVE-2022-22822","CVE-2022-22823","CVE-2022-22824","CVE-2022-22825","CVE-2022-22826","CVE-2022-22827","CVE-2022-23852","CVE-2022-23990","CVE-2022-25235","CVE-2022-25236","UBUNTU-CVE-2021-45960","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-2022-23852","UBUNTU-CVE-2022-23990","UBUNTU-CVE-2022-25235","UBUNTU-CVE-2022-25236"],"references":[{"type":"ADVISORY","url":"https://ubuntu.com/security/notices/USN-5288-1"},{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2021-45960"},{"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-2022-23852"},{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2022-23990"},{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2022-25235"},{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2022-25236"}],"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 with Ubuntu Pro (Infra-only): https://ubuntu.com/pro","binaries":[{"binary_version":"2.1.0-4ubuntu1.4+esm4","binary_name":"expat"},{"binary_version":"2.1.0-4ubuntu1.4+esm4","binary_name":"lib64expat1"},{"binary_name":"libexpat1","binary_version":"2.1.0-4ubuntu1.4+esm4"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/usn/USN-5288-1.json","cves_map":{"ecosystem":"Ubuntu:Pro:14.04:LTS","cves":[{"severity":[{"score":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","type":"CVSS_V3"},{"score":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","type":"CVSS_V3"},{"score":"low","type":"Ubuntu"}],"id":"CVE-2021-45960"},{"severity":[{"score":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H","type":"CVSS_V3"},{"score":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H","type":"CVSS_V3"},{"score":"medium","type":"Ubuntu"}],"id":"CVE-2021-46143"},{"severity":[{"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":"CVSS_V3"},{"score":"medium","type":"Ubuntu"}],"id":"CVE-2022-22822"},{"severity":[{"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":"CVSS_V3"},{"score":"medium","type":"Ubuntu"}],"id":"CVE-2022-22823"},{"severity":[{"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":"CVSS_V3"},{"score":"medium","type":"Ubuntu"}],"id":"CVE-2022-22824"},{"severity":[{"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":"CVSS_V3"},{"score":"medium","type":"Ubuntu"}],"id":"CVE-2022-22825"},{"severity":[{"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":"CVSS_V3"},{"score":"medium","type":"Ubuntu"}],"id":"CVE-2022-22826"},{"severity":[{"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":"CVSS_V3"},{"score":"medium","type":"Ubuntu"}],"id":"CVE-2022-22827"},{"severity":[{"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":"CVSS_V3"},{"score":"medium","type":"Ubuntu"}],"id":"CVE-2022-23852"},{"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":"medium","type":"Ubuntu"}],"id":"CVE-2022-23990"},{"severity":[{"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":"CVSS_V3"},{"score":"high","type":"Ubuntu"}],"id":"CVE-2022-25235"},{"severity":[{"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":"CVSS_V3"},{"score":"high","type":"Ubuntu"}],"id":"CVE-2022-25236"}]}}},{"package":{"name":"expat","ecosystem":"Ubuntu:Pro:16.04:LTS","purl":"pkg:deb/ubuntu/expat?arch=source&distro=esm-apps%2Fxenial"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2.1.0-7ubuntu0.16.04.5+esm2"}]}],"versions":["2.1.0-7","2.1.0-7ubuntu0.16.04.1","2.1.0-7ubuntu0.16.04.2","2.1.0-7ubuntu0.16.04.3","2.1.0-7ubuntu0.16.04.4","2.1.0-7ubuntu0.16.04.5"],"ecosystem_specific":{"availability":"Available 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