{"id":"CVE-2022-0631","aliases":["ALPINE-CVE-2022-0631","EUVD-2022-15728","GHSA-hv83-f8w5-chhv","UBUNTU-CVE-2022-0631"],"status":"published","title":"Heap-based Buffer Overflow in mruby/mruby","description":"Heap-based Buffer Overflow in Homebrew mruby prior to 3.2.","severity":{"version":"3.0","score":5.9,"vector":"CVSS:3.0/AV:L/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L","level":"medium","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-09","score":0.00922,"percentile":0.60608,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":true},"cwes":["CWE-122"],"published":"2022-02-18T13:55:10Z","modified":"2026-11-03T07:31:02Z","fixes":[{"ecosystem":"Alpine:v3.17","package":"mruby","fixed_in":["3.1.0-r0"],"sources":["osv"]},{"ecosystem":"Alpine:v3.18","package":"mruby","fixed_in":["3.1.0-r0"],"sources":["osv"]},{"ecosystem":"Alpine:v3.19","package":"mruby","fixed_in":["3.1.0-r0"],"sources":["osv"]},{"ecosystem":"Alpine:v3.20","package":"mruby","fixed_in":["3.1.0-r0"],"sources":["osv"]},{"ecosystem":"Alpine:v3.21","package":"mruby","fixed_in":["3.1.0-r0"],"sources":["osv"]},{"ecosystem":"Alpine:v3.22","package":"mruby","fixed_in":["3.1.0-r0"],"sources":["osv"]},{"ecosystem":"Alpine:v3.23","package":"mruby","fixed_in":["3.1.0-r0"],"sources":["osv"]},{"ecosystem":"Alpine:v3.24","package":"mruby","fixed_in":["3.1.0-r0"],"sources":["osv"]}],"affected":[{"source":"osv","ecosystem":"Alpine:v3.17","package":"mruby","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"3.1.0-r0"}]}]},{"source":"osv","ecosystem":"Alpine:v3.18","package":"mruby","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"3.1.0-r0"}]}]},{"source":"osv","ecosystem":"Alpine:v3.19","package":"mruby","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"3.1.0-r0"}]}]},{"source":"osv","ecosystem":"Alpine:v3.20","package":"mruby","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"3.1.0-r0"}]}]},{"source":"osv","ecosystem":"Alpine:v3.21","package":"mruby","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"3.1.0-r0"}]}]},{"source":"osv","ecosystem":"Alpine:v3.22","package":"mruby","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"3.1.0-r0"}]}]},{"source":"osv","ecosystem":"Alpine:v3.23","package":"mruby","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"3.1.0-r0"}]}]},{"source":"osv","ecosystem":"Alpine:v3.24","package":"mruby","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"3.1.0-r0"}]}]},{"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"]},{"source":"osv","ecosystem":"Ubuntu:24.04:LTS","package":"mruby","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["3.2.0-1","3.2.0-2"]},{"source":"osv","ecosystem":"Ubuntu:25.10","package":"mruby","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["3.3.0-1"]},{"source":"osv","ecosystem":"Ubuntu:26.10","package":"mruby","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["3.4.0-2","3.4.0-3","4.0.0-1"]},{"source":"osv","ecosystem":"Ubuntu:26.04:LTS","package":"mruby","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["3.3.0-1","3.4.0-2"]}],"products":[{"vendor":"mruby","product":"mruby"},{"vendor":"mruby","product":"mruby/mruby"}],"references":[{"url":"https://huntr.dev/bounties/9bdc49ca-6697-4adc-a785-081e1961bf40","tags":["x_refsource_CONFIRM","x_transferred","Exploit","Patch","Third Party Advisory","web","report"]},{"url":"https://github.com/mruby/mruby/commit/47068ae07a5fa3aa9a1879cdfe98a9ce0f339299","tags":["x_refsource_MISC","x_transferred","Patch","Third Party Advisory","fix","report"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2022-0631","tags":["advisory"]},{"url":"https://github.com/advisories/GHSA-hv83-f8w5-chhv"},{"url":"https://security.alpinelinux.org/vuln/CVE-2022-0631","tags":["advisory"]},{"url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2022/0xxx/CVE-2022-0631.json","tags":["advisory"]},{"url":"https://ubuntu.com/security/CVE-2022-0631","tags":["report"]},{"url":"https://www.cve.org/CVERecord?id=CVE-2022-0631","tags":["report"]}],"sources":{"cve":[{"id":"CVE-2022-0631","title":"Heap-based Buffer Overflow in mruby/mruby","description":"Heap-based Buffer Overflow in Homebrew mruby prior to 3.2.","status":"published","published":"2022-02-18T13:55:10Z","modified":"2024-08-02T23:32:46.546Z","cvss":[{"version":"3.0","score":5.9,"vector":"CVSS:3.0/AV:L/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L","level":"medium","assessor":"cna"}],"cwes":["CWE-122"],"updated_at":"2026-11-02T14:34:42.028422Z"}],"euvd":[{"id":"EUVD-2022-15728","description":"Heap-based Buffer Overflow in Homebrew mruby prior to 3.2.","status":"published","published":"2022-02-18T13:55:10Z","modified":"2024-08-02T23:32:46Z","cvss":[{"version":"3.0","score":5.9,"vector":"CVSS:3.0/AV:L/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L","level":"medium"}],"updated_at":"2026-11-03T03:26:04.481305Z"}],"ghsa":[{"id":"GHSA-hv83-f8w5-chhv","title":"Heap-based Buffer Overflow in Homebrew mruby prior to 3.2.","description":"Heap-based Buffer Overflow in Homebrew mruby prior to 3.2.","status":"published","published":"2022-02-19T00:01:35Z","modified":"2023-02-03T05:06:23Z","cwes":["CWE-122"],"updated_at":"2026-11-02T14:53:53.812094Z"}],"nvd":[{"id":"CVE-2022-0631","description":"Heap-based Buffer Overflow in Homebrew mruby prior to 3.2.","status":"published","published":"2022-02-18T14:15:07.907Z","modified":"2026-06-17T04:20:58.113Z","cvss":[{"version":"3.1","score":9.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"critical","assessor":"primary"},{"version":"3.0","score":5.9,"vector":"CVSS:3.0/AV:L/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L","level":"medium","assessor":"secondary"},{"version":"2.0","score":7.5,"vector":"AV:N/AC:L/Au:N/C:P/I:P/A:P","level":"high","assessor":"primary"}],"cwes":["CWE-122"],"updated_at":"2026-11-02T14:07:12.155838Z"}],"osv":[{"id":"ALPINE-CVE-2022-0631","description":"Heap-based Buffer Overflow in Homebrew mruby prior to 3.2.","status":"published","published":"2022-02-18T14:15:07.907Z","modified":"2026-11-03T07:31:02.41166868Z","cvss":[{"version":"3.1","score":9.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"critical"}],"updated_at":"2026-11-03T07:50:01.054176Z"},{"id":"CVE-2022-0631","title":"Heap-based Buffer Overflow in mruby/mruby","description":"Heap-based Buffer Overflow in Homebrew mruby prior to 3.2.","status":"published","published":"2022-02-18T13:55:10Z","modified":"2026-10-28T10:28:12.388924795Z","cvss":[{"version":"3.0","score":5.9,"vector":"CVSS:3.0/AV:L/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L","level":"medium"}],"cwes":["CWE-122"],"updated_at":"2026-11-02T15:44:22.824781Z"},{"id":"UBUNTU-CVE-2022-0631","description":"Heap-based Buffer Overflow in Homebrew mruby prior to 3.2.","status":"published","published":"2022-02-18T14:15:00Z","modified":"2026-10-17T12:57:14.497524014Z","cvss":[{"version":"3.0","score":5.9,"vector":"CVSS:3.0/AV:L/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L","level":"medium"},{"version":"3.1","score":9.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"critical"}],"updated_at":"2026-11-02T16:53:51.630172Z"}]}}