{"action":"Upgrade upx to 4.0.0-r0 or later.","affected":[{"fixed":"4.0.0-r0","introduced":"0"}],"component":"upx","cve_ids":[],"ecosystem":"Alpine","ecosystem_qualifier":"Alpine:v3.17","exploited":false,"fixed_versions":["4.0.0-r0"],"id":"tcs_01M6GMJH7VRKZPSG5RFB7VT68H","modified_at":"2026-11-03T06:32:25.477736343Z","published_at":"2022-08-25T20:15:08.537Z","references":["https://osv.dev/vulnerability/ALPINE-CVE-2020-27797","https://security.alpinelinux.org/vuln/CVE-2020-27797"],"severity":{"label":"medium","score":5.5},"sources":[{"source":"osv","source_id":"ALPINE-CVE-2020-27797","url":"https://osv.dev/vulnerability/ALPINE-CVE-2020-27797"}],"summary":"An invalid memory address reference was discovered in the elf_lookup function in p_lx_elf.cpp in UPX 4.0.0 via a crafted Mach-O file."}