{"id":"USN-5197-1","summary":"apache-log4j2 vulnerability","details":"It was found that the fix to address CVE-2021-44228 in Apache Log4j 2.15.0 was\nincomplete in certain non-default configurations. An attacker could use this\nvulnerability to cause a denial of service.\nPlease see the following link for more information:\nhttps://wiki.ubuntu.com/SecurityTeam/KnowledgeBase/Log4Shell\n","modified":"2026-02-10T04:42:24Z","published":"2021-12-15T19:02:14Z","related":["UBUNTU-CVE-2021-44228","UBUNTU-CVE-2021-45046"],"upstream":["CVE-2021-44228","CVE-2021-45046","UBUNTU-CVE-2021-44228","UBUNTU-CVE-2021-45046"],"references":[{"type":"ADVISORY","url":"https://ubuntu.com/security/notices/USN-5197-1"},{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2021-44228"},{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2021-45046"}],"affected":[{"package":{"name":"apache-log4j2","ecosystem":"Ubuntu:20.04:LTS","purl":"pkg:deb/ubuntu/apache-log4j2@2.16.0-0.20.04.1?arch=source&distro=focal"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2.16.0-0.20.04.1"}]}],"versions":["2.11.1-2","2.11.2-1","2.15.0-0.20.04.1"],"ecosystem_specific":{"binaries":[{"binary_version":"2.16.0-0.20.04.1","binary_name":"liblog4j2-java"}],"availability":"No subscription required"},"database_specific":{"cves_map":{"cves":[{"id":"CVE-2021-45046","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:H"},{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:H"},{"type":"Ubuntu","score":"high"}]}],"ecosystem":"Ubuntu:20.04:LTS"},"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/usn/USN-5197-1.json"}}],"schema_version":"1.7.3"}