{"action":"Upgrade upx-ucl to 4.2.2-1 or later.","affected":[{"fixed":"4.2.2-1","introduced":"0"}],"component":"upx-ucl","cve_ids":[],"ecosystem":"Debian","ecosystem_qualifier":"Debian:14","exploited":false,"fixed_versions":["4.2.2-1"],"id":"tcs_01M5NFBBXT1RKASJQYNJQNB32X","modified_at":"2026-10-23T18:03:10.427897857Z","published_at":"2021-03-26T17:15:13.140Z","references":["https://osv.dev/vulnerability/DEBIAN-CVE-2021-20285","https://security-tracker.debian.org/tracker/CVE-2021-20285"],"severity":{"label":"medium","score":6.6},"sources":[{"source":"osv","source_id":"DEBIAN-CVE-2021-20285#Debian:14/upx-ucl","url":"https://osv.dev/vulnerability/DEBIAN-CVE-2021-20285"}],"summary":"A flaw was found in upx canPack in p_lx_elf.cpp in UPX 3.96. This flaw allows attackers to cause a denial of service (SEGV or buffer overflow and application crash) or possibly have unspecified other"}