{"id":"CVE-2019-20021","details":"A heap-based buffer over-read was discovered in canUnpack in p_mach.cpp in UPX 3.95 via a crafted Mach-O file.","modified":"2026-07-08T05:55:34.157411696Z","published":"2019-12-27T02:15:10.797Z","related":["openSUSE-SU-2020:0163-1","openSUSE-SU-2020:0180-1","openSUSE-SU-2024:11486-1"],"database_specific":{"unresolved_ranges":[{"cpes":["cpe:2.3:o:fedoraproject:fedora:30:*:*:*:*:*:*:*","cpe:2.3:o:fedoraproject:fedora:31:*:*:*:*:*:*:*"],"extracted_events":[{"introduced":"30"},{"last_affected":"30"},{"introduced":"31"},{"last_affected":"31"}],"source":"CPE_STRING","vendor_product":"fedoraproject:fedora"}]},"references":[{"type":"WEB","url":"http://lists.opensuse.org/opensuse-security-announce/2020-02/msg00003.html"},{"type":"WEB","url":"http://lists.opensuse.org/opensuse-security-announce/2020-02/msg00007.html"},{"type":"WEB","url":"https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/D7XU42G6MUQQXHWRP7DCF2JSIBOJ5GOO/"},{"type":"WEB","url":"https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/EUTVSTXAFTD552NO2K2RIF6MDQEHP3BE/"},{"type":"REPORT","url":"https://github.com/upx/upx/issues/315"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://github.com/upx/upx","events":[{"introduced":"7a3637ff5a800b8bcbad20ae7f668d8c8449b014"},{"last_affected":"7a3637ff5a800b8bcbad20ae7f668d8c8449b014"}],"database_specific":{"cpe":"cpe:2.3:a:upx:upx:3.95:*:*:*:*:*:*:*","extracted_events":[{"introduced":"3.95"},{"last_affected":"3.95"}],"source":"CPE_STRING"}}],"versions":["3.95","v3.95"],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2019-20021.json"}}],"schema_version":"1.7.5","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H"}]}