{"action":"Upgrade upx to 4.0.2-r0 or later.","affected":[{"fixed":"4.0.2-r0","introduced":"0"}],"component":"upx","cve_ids":[],"ecosystem":"Alpine","ecosystem_qualifier":"Alpine:v3.20","exploited":false,"fixed_versions":["4.0.2-r0"],"id":"tcs_01M6GZFEG1E6RTGA9QKF63TP8S","modified_at":"2026-11-03T06:32:47.983428214Z","published_at":"2023-01-12T19:15:24.810Z","references":["https://osv.dev/vulnerability/ALPINE-CVE-2023-23457","https://security.alpinelinux.org/vuln/CVE-2023-23457"],"severity":{"label":"medium","score":5.5},"sources":[{"source":"osv","source_id":"ALPINE-CVE-2023-23457#Alpine:v3.20/upx","url":"https://osv.dev/vulnerability/ALPINE-CVE-2023-23457"}],"summary":"A Segmentation fault was found in UPX in PackLinuxElf64::invert_pt_dynamic() in p_lx_elf.cpp. An attacker with a crafted input file allows invalid memory address access that could lead to a denial of"}