{"id":"CVE-2023-23457","summary":"Upx: segv on packlinuxelf64::invert_pt_dynamic() in p_lx_elf.cpp","details":"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 service.","modified":"2026-08-18T16:23:39.407939Z","published":"2023-01-12T00:00:00Z","related":["openSUSE-SU-2023:0031-1","openSUSE-SU-2023:0088-1","openSUSE-SU-2024:12613-1"],"database_specific":{"cna_assigner":"fedora","cwe_ids":["CWE-119"],"osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2023/23xxx/CVE-2023-23457.json"},"references":[{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2023/23xxx/CVE-2023-23457.json"},{"type":"ADVISORY","url":"https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/EL3BVKIGG3SH6I3KPOYQAWCBD4UMPOPI/"},{"type":"ADVISORY","url":"https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/TGEP3FBNRZXGLIA2B2ICMB32JVMPREFZ/"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2023-23457"},{"type":"REPORT","url":"https://bugzilla.redhat.com/show_bug.cgi?id=2160382"},{"type":"REPORT","url":"https://github.com/upx/upx/issues/631"},{"type":"FIX","url":"https://github.com/upx/upx/commit/779b648c5f6aa9b33f4728f79dd4d0efec0bf860"},{"type":"PACKAGE","url":"https://github.com/upx/upx"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://github.com/upx/upx","events":[{"introduced":"0"},{"fixed":"779b648c5f6aa9b33f4728f79dd4d0efec0bf860"}],"database_specific":{"source":"REFERENCES"}}],"versions":["v4.0.1","v4.0.0","v3.99","v3.96","v3.95","v3.93","v3.92","v3.91","v3.09","v3.07","v3.06","v3.04","v3.03","v3.02","v3.01","v3.00","v2.93","v2.92","v2.91","v2.90","v2.01","v2.00","v1.96","v1.95","v1.94","v1.93","v1.92","v1.91","v1.90","v1.11","v1.10"],"database_specific":{"source":"https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2023-23457.json","vanir_signatures_modified":"2026-08-18T16:23:39Z","vanir_signatures":[{"source":"https://github.com/upx/upx/commit/779b648c5f6aa9b33f4728f79dd4d0efec0bf860","target":{"file":"src/p_lx_elf.cpp","function":"PackLinuxElf64::invert_pt_dynamic"},"deprecated":false,"digest":{"function_hash":"42262339947388032623676980633824805462","length":8788},"id":"CVE-2023-23457-b45d7355","signature_type":"Function","signature_version":"v1"},{"digest":{"length":3026,"function_hash":"19408914365346423957561054170081573682"},"id":"CVE-2023-23457-bbcab3cb","signature_type":"Function","signature_version":"v1","source":"https://github.com/upx/upx/commit/779b648c5f6aa9b33f4728f79dd4d0efec0bf860","target":{"file":"src/p_lx_elf.cpp","function":"PackLinuxElf32::PackLinuxElf32help1"},"deprecated":false},{"target":{"file":"src/p_lx_elf.cpp"},"deprecated":false,"digest":{"line_hashes":["142249375640790411858129775142198822814","36492286630692778435501818076002683148","287972816287874434871393969878197477036","191566115527692203313297558251537077106","46780460521686308984823082895463285932","139229797549286814348365000422297446028","286349361568889596936212651919805016948","307332015826809553851266029188169250540","225218205240047416029730917158781686809","334738389901174910913574964795290529576","139346916926389414586557055743959108249","59598016787249905982194526332403768303"],"threshold":0.9},"id":"CVE-2023-23457-e59f550a","signature_type":"Line","signature_version":"v1","source":"https://github.com/upx/upx/commit/779b648c5f6aa9b33f4728f79dd4d0efec0bf860"},{"target":{"file":"src/p_lx_elf.cpp","function":"PackLinuxElf64::PackLinuxElf64help1"},"deprecated":false,"digest":{"function_hash":"210022612781763727422160080975331654848","length":3027},"id":"CVE-2023-23457-ffaedcf9","signature_type":"Function","signature_version":"v1","source":"https://github.com/upx/upx/commit/779b648c5f6aa9b33f4728f79dd4d0efec0bf860"}]}}],"schema_version":"1.9.0","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:L"}]}