{"id":"USN-5192-2","summary":"apache-log4j2 vulnerability","details":"USN-5192-1 fixed a vulnerability in Apache Log4j 2. This update provides\nthe corresponding update for Ubuntu 16.04 ESM.\n\nOriginal advisory details:\n\n Chen Zhaojun discovered that Apache Log4j 2 allows remote attackers to run\n programs via a special crafted input. An attacker could use this vulnerability\n to cause a denial of service or possibly execute arbitrary code.\n","modified":"2026-02-10T04:42:24Z","published":"2021-12-17T12:46:46Z","related":["UBUNTU-CVE-2021-44228"],"upstream":["CVE-2021-44228","UBUNTU-CVE-2021-44228"],"references":[{"type":"ADVISORY","url":"https://ubuntu.com/security/notices/USN-5192-2"},{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2021-44228"}],"affected":[{"package":{"name":"apache-log4j2","ecosystem":"Ubuntu:Pro:16.04:LTS","purl":"pkg:deb/ubuntu/apache-log4j2@2.4-2ubuntu0.1~esm1?arch=source&distro=esm-infra/xenial"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2.4-2ubuntu0.1~esm1"}]}],"versions":["2.2-1","2.4-1","2.4-2"],"ecosystem_specific":{"availability":"Available with Ubuntu Pro (Infra-only): https://ubuntu.com/pro","binaries":[{"binary_version":"2.4-2ubuntu0.1~esm1","binary_name":"liblog4j2-java"}]},"database_specific":{"cves_map":{"cves":[{"id":"CVE-2021-44228","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H"},{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H"},{"type":"Ubuntu","score":"high"}]}],"ecosystem":"Ubuntu:Pro:16.04:LTS"},"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/usn/USN-5192-2.json"}}],"schema_version":"1.7.3"}