{"id":"UBUNTU-CVE-2021-39514","details":"An issue was discovered in libjpeg through 2020021. An uncaught floating point exception in the function ACLosslessScan::ParseMCU() located in aclosslessscan.cpp. It allows an attacker to cause Denial of Service.","modified":"2025-10-24T04:50:29Z","published":"2021-09-20T16:15:00Z","upstream":["CVE-2021-39514"],"references":[{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2021-39514"},{"type":"REPORT","url":"https://www.cve.org/CVERecord?id=CVE-2021-39514"}],"affected":[{"package":{"name":"libjpeg6b","ecosystem":"Ubuntu:Pro:16.04:LTS","purl":"pkg:deb/ubuntu/libjpeg6b@1:6b2-2ubuntu0.1~esm1?arch=source&distro=esm-apps/xenial"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["1:6b2-2","1:6b2-2ubuntu0.1~esm1"],"ecosystem_specific":{"binaries":[{"binary_name":"libjpeg62","binary_version":"1:6b2-2ubuntu0.1~esm1"},{"binary_name":"libjpeg62-dev","binary_version":"1:6b2-2ubuntu0.1~esm1"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2021/UBUNTU-CVE-2021-39514.json"}},{"package":{"name":"libjpeg","ecosystem":"Ubuntu:20.04:LTS","purl":"pkg:deb/ubuntu/libjpeg@0.0~git20190821.87636f3b26b4-1.1?arch=source&distro=focal"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["0.0~git20190821.87636f3b26b4-1","0.0~git20190821.87636f3b26b4-1.1"],"ecosystem_specific":{"binaries":[{"binary_name":"libjpeg-tools","binary_version":"0.0~git20190821.87636f3b26b4-1.1"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2021/UBUNTU-CVE-2021-39514.json"}}],"schema_version":"1.7.3","severity":[{"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":"low"}]}