{"id":"CVE-2020-36401","aliases":["DEBIAN-CVE-2020-36401","EUVD-2020-23929","GHSA-qq64-7fh7-7hmw","UBUNTU-CVE-2020-36401"],"status":"published","title":"mruby 2.1.2 has a double free in mrb_default_allocf (called from mrb_free and obj_free).","description":"mruby 2.1.2 has a double free in mrb_default_allocf (called from mrb_free and obj_free).","severity":{"version":"3.1","score":7.8,"vector":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H","level":"high","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-10","score":0.00987,"percentile":0.62702,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":true},"cwes":["CWE-415"],"published":"2021-07-01T02:51:06Z","modified":"2026-10-26T12:02:49Z","fixes":[{"ecosystem":"Debian:12","package":"mruby","fixed_in":["2.1.2-3"],"sources":["osv"]},{"ecosystem":"Debian:13","package":"mruby","fixed_in":["2.1.2-3"],"sources":["osv"]},{"ecosystem":"Debian:14","package":"mruby","fixed_in":["2.1.2-3"],"sources":["osv"]}],"affected":[{"source":"osv","ecosystem":"Debian:12","package":"mruby","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2.1.2-3"}]}]},{"source":"osv","ecosystem":"Debian:13","package":"mruby","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2.1.2-3"}]}]},{"source":"osv","ecosystem":"Debian:14","package":"mruby","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2.1.2-3"}]}]},{"source":"osv","ecosystem":"Ubuntu:16.04:LTS","package":"mruby","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["1.1.0+20150817+gita1731254-1","1.1.0+20150906+git1cbbb7e1-1","1.2.0+20160315+git4f20d58a-1"]},{"source":"osv","ecosystem":"Ubuntu:18.04:LTS","package":"mruby","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["1.3.0-1","1.3.0+20170925+git38185028-1","1.3.0+20171029+git77edafb0-1","1.4.0-1"]},{"source":"osv","ecosystem":"Ubuntu:20.04:LTS","package":"mruby","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["2.0.0-1"]},{"source":"osv","ecosystem":"Ubuntu:22.04:LTS","package":"mruby","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["2.1.2-3","3.0.0-1","3.0.0-3"]}],"products":[{"vendor":"mruby","product":"mruby"}],"references":[{"url":"https://github.com/mruby/mruby/commit/97319697c8f9f6ff27b32589947e1918e3015503","tags":["x_refsource_MISC","x_transferred","Patch","Third Party Advisory","fix","report"]},{"url":"https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=23801","tags":["x_refsource_MISC","x_transferred","Exploit","Issue Tracking","Patch","Third Party Advisory","fix","report"]},{"url":"https://github.com/google/oss-fuzz-vulns/blob/main/vulns/mruby/OSV-2020-744.yaml","tags":["x_refsource_MISC","x_transferred","Third Party Advisory","advisory","report"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2020-36401"},{"url":"https://github.com/advisories/GHSA-qq64-7fh7-7hmw"},{"url":"https://security-tracker.debian.org/tracker/CVE-2020-36401","tags":["advisory"]},{"url":"https://ubuntu.com/security/CVE-2020-36401","tags":["report"]},{"url":"https://www.cve.org/CVERecord?id=CVE-2020-36401","tags":["report"]}],"sources":{"cve":[{"id":"CVE-2020-36401","description":"mruby 2.1.2 has a double free in mrb_default_allocf (called from mrb_free and obj_free).","status":"published","published":"2021-07-01T02:51:06Z","modified":"2024-08-04T17:23:10.548Z","updated_at":"2026-11-02T14:35:55.128961Z"}],"euvd":[{"id":"EUVD-2020-23929","description":"mruby 2.1.2 has a double free in mrb_default_allocf (called from mrb_free and obj_free).","status":"published","published":"2021-07-01T02:51:06Z","modified":"2024-08-04T17:23:10Z","updated_at":"2026-11-03T03:07:03.484914Z"}],"ghsa":[{"id":"GHSA-qq64-7fh7-7hmw","title":"mruby 2.1.2 has a double free in mrb_default_allocf (called from mrb_free and obj_free).","description":"mruby 2.1.2 has a double free in mrb_default_allocf (called from mrb_free and obj_free).","status":"published","published":"2022-05-24T19:06:47Z","modified":"2023-01-30T05:00:37Z","cwes":["CWE-415"],"updated_at":"2026-11-02T14:46:14.46933Z"}],"nvd":[{"id":"CVE-2020-36401","description":"mruby 2.1.2 has a double free in mrb_default_allocf (called from mrb_free and obj_free).","status":"published","published":"2021-07-01T03:15:07.82Z","modified":"2026-06-17T03:15:24.923Z","cvss":[{"version":"3.1","score":7.8,"vector":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H","level":"high","assessor":"primary"},{"version":"2.0","score":6.8,"vector":"AV:N/AC:M/Au:N/C:P/I:P/A:P","level":"medium","assessor":"primary"}],"cwes":["CWE-415"],"updated_at":"2026-11-02T14:06:44.292752Z"}],"osv":[{"id":"CVE-2020-36401","description":"mruby 2.1.2 has a double free in mrb_default_allocf (called from mrb_free and obj_free).","status":"published","published":"2021-07-01T03:15:07.82Z","modified":"2026-04-11T09:46:25.679993Z","cvss":[{"version":"3.1","score":7.8,"vector":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H","level":"high"}],"updated_at":"2026-11-02T15:44:16.936975Z"},{"id":"DEBIAN-CVE-2020-36401","description":"mruby 2.1.2 has a double free in mrb_default_allocf (called from mrb_free and obj_free).","status":"published","published":"2021-07-01T03:15:07.82Z","modified":"2026-10-26T12:02:49.176843866Z","cvss":[{"version":"3.1","score":7.8,"vector":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H","level":"high"}],"updated_at":"2026-11-02T15:45:34.019707Z"},{"id":"UBUNTU-CVE-2020-36401","description":"mruby 2.1.2 has a double free in mrb_default_allocf (called from mrb_free and obj_free).","status":"published","published":"2021-07-01T03:15:00Z","modified":"2026-04-22T12:41:39.438029Z","cvss":[{"version":"3.1","score":7.8,"vector":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H","level":"high"}],"updated_at":"2026-11-02T15:54:25.179924Z"}]}}
