{"id":"CVE-2018-19843","details":"opmov in libr/asm/p/asm_x86_nz.c in radare2 before 3.1.0 allows attackers to cause a denial of service (buffer over-read) via crafted x86 assembly data, as demonstrated by rasm2.","modified":"2026-08-07T14:58:49.844997Z","published":"2018-12-04T09:29:00.773Z","references":[{"type":"FIX","url":"https://github.com/radare/radare2/commit/f17bfd9f1da05f30f23a4dd05e9d2363e1406948"},{"type":"EVIDENCE","url":"https://github.com/radare/radare2/issues/12242"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://github.com/radareorg/radare2","events":[{"introduced":"0"},{"fixed":"b143e1b1b5622ef2f41a90f4c0f7ed4c477caf40"},{"fixed":"f17bfd9f1da05f30f23a4dd05e9d2363e1406948"}],"database_specific":{"cpe":"cpe:2.3:a:radare:radare2:*:*:*:*:*:*:*:*","extracted_events":[{"introduced":"0"},{"fixed":"3.1.1"}],"source":["CPE_RANGE","REFERENCES"]}}],"versions":["3.1.0","3.0.1","3.0.0","2.9.0","2.8.0","2.7.0","2.6.9","2.6.0","2.5.0","2.4.0","2.2.0","2.1.0","2.0.1","2.0.0","1.6.0","1.5.0","1.4.0","1.3.0","1.3.0-git","1.2.0","1.2.0-git","1.1.0","1.0.2","1.0.1","1.0.0","1.0","0.10.6","0.10.5","0.10.4-termux4","termux","0.10.4","0.10.3","0.10.2","0.10.1","0.10.0","radare2-windows-nightly","0.9.9","0.9.8","0.9.8-rc4","0.9.8-rc3","0.9.8-rc2","0.9.8-rc1","0.9.7","0.9.6","0.9.4","0.9.2","0.9","0.8.8","0.8.6"],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2018-19843.json","vanir_signatures_modified":"2026-08-07T14:58:49Z","vanir_signatures":[{"id":"CVE-2018-19843-74212d20","signature_type":"Function","signature_version":"v1","source":"https://github.com/radareorg/radare2/commit/b143e1b1b5622ef2f41a90f4c0f7ed4c477caf40","target":{"function":"r_buf_read_string","file":"libr/bin/format/mach0/dyldcache.c"},"deprecated":false,"digest":{"function_hash":"161720472885181522724332432472867243711","length":217}},{"digest":{"line_hashes":["330960724519816557233190015833134308758","306699937490363565829225498963642507180","101186743262292792962505292558884175565","195968014964440177915245805858532532051","84411433679322737451425772879675111840","108510789520417173910305081609584073859"],"threshold":0.9},"id":"CVE-2018-19843-a0ed9732","signature_type":"Line","signature_version":"v1","source":"https://github.com/radareorg/radare2/commit/f17bfd9f1da05f30f23a4dd05e9d2363e1406948","target":{"file":"libr/asm/p/asm_x86_nz.c"},"deprecated":false},{"deprecated":false,"digest":{"line_hashes":["91826688001801390993882391060580842390","153573451393114912523381648709776456045","76273051819025290594568241401172330628","223983239877208572709103316397190836729","182546693358306982969485629985754146842"],"threshold":0.9},"id":"CVE-2018-19843-b11dda58","signature_type":"Line","signature_version":"v1","source":"https://github.com/radareorg/radare2/commit/b143e1b1b5622ef2f41a90f4c0f7ed4c477caf40","target":{"file":"libr/bin/format/mach0/dyldcache.c"}},{"signature_version":"v1","source":"https://github.com/radareorg/radare2/commit/f17bfd9f1da05f30f23a4dd05e9d2363e1406948","target":{"file":"libr/asm/p/asm_x86_nz.c","function":"opmov"},"deprecated":false,"digest":{"function_hash":"64554166920577301886355491464698671545","length":13696},"id":"CVE-2018-19843-f9f5d1f7","signature_type":"Function"}]}}],"schema_version":"1.8.0","severity":[{"type":"CVSS_V3","score":"CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H"}]}