{"id":"CVE-2019-20805","aliases":["DEBIAN-CVE-2019-20805","EUVD-2019-11342","GHSA-3x77-qmhw-v3hg","UBUNTU-CVE-2019-20805"],"status":"published","title":"p_lx_elf.cpp in UPX before 3.96 has an integer overflow during unpacking via crafted values in a...","description":"p_lx_elf.cpp in UPX before 3.96 has an integer overflow during unpacking via crafted values in a PT_DYNAMIC segment.","severity":{"version":"3.1","score":5.5,"vector":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H","level":"medium","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-09","score":0.0082,"percentile":0.57522,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":true},"cwes":["CWE-190"],"published":"2020-06-01T13:50:27Z","modified":"2026-10-20T13:42:58Z","fixes":[{"ecosystem":"Debian:13","package":"upx-ucl","fixed_in":["3.96-1"],"sources":["osv"]},{"ecosystem":"Debian:14","package":"upx-ucl","fixed_in":["3.96-1"],"sources":["osv"]}],"affected":[{"source":"osv","ecosystem":"Debian:13","package":"upx-ucl","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"3.96-1"}]}]},{"source":"osv","ecosystem":"Debian:14","package":"upx-ucl","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"3.96-1"}]}]},{"source":"osv","ecosystem":"Ubuntu:16.04:LTS","package":"upx-ucl","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["3.91-1"]},{"source":"osv","ecosystem":"Ubuntu:18.04:LTS","package":"upx-ucl","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["3.94-2","3.94-3","3.94-4"]},{"source":"osv","ecosystem":"Ubuntu:20.04:LTS","package":"upx-ucl","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["3.95-2","3.95-2build1"]}],"products":[{"vendor":"upx","product":"upx"}],"references":[{"url":"https://github.com/upx/upx/commit/8be9da8280dfa69d5df4417d4d81bda1cab78010","tags":["x_refsource_MISC","x_transferred","Patch","Third Party Advisory","fix","report"]},{"url":"https://github.com/upx/upx/issues/317","tags":["x_refsource_MISC","x_transferred","Third Party Advisory","advisory","report"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2019-20805"},{"url":"https://github.com/advisories/GHSA-3x77-qmhw-v3hg"},{"url":"https://security-tracker.debian.org/tracker/CVE-2019-20805","tags":["advisory"]},{"url":"https://ubuntu.com/security/CVE-2019-20805","tags":["report"]},{"url":"https://www.cve.org/CVERecord?id=CVE-2019-20805","tags":["report"]}],"sources":{"cve":[{"id":"CVE-2019-20805","description":"p_lx_elf.cpp in UPX before 3.96 has an integer overflow during unpacking via crafted values in a PT_DYNAMIC segment.","status":"published","published":"2020-06-01T13:50:27Z","modified":"2024-08-05T02:53:09.032Z","updated_at":"2026-11-02T14:20:17.431882Z"}],"euvd":[{"id":"EUVD-2019-11342","description":"p_lx_elf.cpp in UPX before 3.96 has an integer overflow during unpacking via crafted values in a PT_DYNAMIC 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