{"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:v3.19","exploited":false,"fixed_versions":["4.0.2-r0"],"id":"tcs_01M6H598E2RD2GS8DNQWAC23AP","modified_at":"2026-11-03T06:32:58.947230355Z","published_at":"2023-01-12T19:15:24.693Z","references":["https://osv.dev/vulnerability/ALPINE-CVE-2023-23456","https://security.alpinelinux.org/vuln/CVE-2023-23456"],"severity":{"label":"medium","score":5.5},"sources":[{"source":"osv","source_id":"ALPINE-CVE-2023-23456#Alpine:v3.19/upx","url":"https://osv.dev/vulnerability/ALPINE-CVE-2023-23456"}],"summary":"A heap-based buffer overflow issue was discovered in UPX in PackTmt::pack() in p_tmt.cpp file. The flow allows an attacker to cause a denial of service (abort) via a crafted file."}