{"id":"CVE-2021-30500","details":"Null pointer dereference was found in upx PackLinuxElf::canUnpack() in p_lx_elf.cpp,in version UPX 4.0.0. That allow attackers to execute arbitrary code and cause a denial of service via a crafted file.","modified":"2026-05-16T04:03:05.218255617Z","published":"2021-05-27T00:15:08.483Z","related":["openSUSE-SU-2023:0088-1"],"database_specific":{"unresolved_ranges":[{"source":"CPE_FIELD","extracted_events":[{"last_affected":"33"}],"cpes":["cpe:2.3:o:fedoraproject:fedora:33:*:*:*:*:*:*:*"],"vendor_product":"fedoraproject:fedora"},{"vendor_product":"redhat:enterprise_linux","extracted_events":[{"last_affected":"7.0"}],"cpes":["cpe:2.3:o:redhat:enterprise_linux:7.0:*:*:*:*:*:*:*"],"source":"CPE_FIELD"}]},"references":[{"type":"REPORT","url":"https://bugzilla.redhat.com/show_bug.cgi?id=1948692"},{"type":"REPORT","url":"https://github.com/upx/upx/issues/485"},{"type":"FIX","url":"https://github.com/upx/upx/commit/90279abdfcd235172eab99651043051188938dcc"}],"schema_version":"1.7.5","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H"}]}