{"id":"CVE-2021-43312","details":"A heap-based buffer overflow was discovered in upx, during the variable 'bucket' points to an inaccessible address. The issue is being triggered in the function PackLinuxElf64::invert_pt_dynamic at p_lx_elf.cpp:5239.","modified":"2026-05-18T22:24:20.638453Z","published":"2023-03-24T20:15:08.270Z","related":["openSUSE-SU-2023:0088-1"],"references":[{"type":"FIX","url":"https://github.com/upx/upx/issues/379"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://github.com/upx/upx","events":[{"introduced":"0"},{"fixed":"69ca635c4c0ba474e9ca583dbb42e3d028c4533a"}],"database_specific":{"cpe":"cpe:2.3:a:upx:upx:*:*:*:*:*:*:*:*","source":"CPE_FIELD","extracted_events":[{"introduced":"0"},{"fixed":"4.0.0"}]}}],"versions":["v3.99","v3.96","v3.95","v3.93","v3.92","v3.91","v3.09","v3.07","v3.06","v3.04","v3.03","v3.02","v3.01","v3.00","v2.93","v2.92","v2.91","v2.90","v2.01","v2.00","v1.96","v1.95","v1.94","v1.93","v1.92","v1.91","v1.90","v1.11","v1.10"],"database_specific":{"source":"https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2021-43312.json"}}],"schema_version":"1.7.5","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H"}]}