{"id":"CVE-2018-11743","details":"The init_copy function in kernel.c in mruby 1.4.1 makes initialize_copy calls for TT_ICLASS objects, which allows attackers to cause a denial of service (mrb_hash_keys uninitialized pointer and application crash) or possibly have unspecified other impact.","modified":"2026-04-11T12:27:24.570997Z","published":"2018-06-05T13:29:00.360Z","references":[{"type":"ADVISORY","url":"https://lists.debian.org/debian-lts-announce/2022/05/msg00006.html"},{"type":"FIX","url":"https://github.com/mruby/mruby/commit/b64ce17852b180dfeea81cf458660be41a78974d"},{"type":"FIX","url":"https://github.com/mruby/mruby/issues/4027"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://github.com/mruby/mruby","events":[{"introduced":"0"},{"last_affected":"023070a6396233974785a8fd5735b9380a884f27"},{"fixed":"b64ce17852b180dfeea81cf458660be41a78974d"}],"database_specific":{"versions":[{"introduced":"0"},{"last_affected":"1.4.1"}]}}],"versions":["1.0.0","1.1.0","1.2.0","1.4.1"],"database_specific":{"vanir_signatures_modified":"2026-04-11T12:27:24Z","vanir_signatures":[{"target":{"file":"src/kernel.c","function":"init_copy"},"digest":{"function_hash":"48112143005334984103996638571299297107","length":583},"signature_version":"v1","id":"CVE-2018-11743-244638a9","signature_type":"Function","deprecated":false,"source":"https://github.com/mruby/mruby/commit/b64ce17852b180dfeea81cf458660be41a78974d"},{"target":{"file":"src/kernel.c"},"digest":{"line_hashes":["295482155461672475953902644544377184591","164249401958941042688244750441504177802","195418266659789850486705450476988748358","159697100646635414149928797440161989047"],"threshold":0.9},"signature_version":"v1","id":"CVE-2018-11743-c2146ee5","signature_type":"Line","deprecated":false,"source":"https://github.com/mruby/mruby/commit/b64ce17852b180dfeea81cf458660be41a78974d"}],"unresolved_ranges":[{"events":[{"introduced":"0"},{"last_affected":"9.0"}]}],"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2018-11743.json"}}],"schema_version":"1.7.5","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H"}]}