{"id":"CVE-2017-9527","aliases":["DEBIAN-CVE-2017-9527","DLA-2996-1","EUVD-2017-18458","GHSA-fxr6-v647-jgmq","UBUNTU-CVE-2017-9527"],"status":"published","title":"The mark_context_stack function in gc.c in mruby through 1.2.0 allows attackers to cause a denial...","description":"The mark_context_stack function in gc.c in mruby through 1.2.0 allows attackers to cause a denial of service (heap-based use-after-free and application crash) or possibly have unspecified other impact via a crafted .rb file.","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":"2026-11-08","score":0.0097,"percentile":0.6211,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":true},"cwes":["CWE-416"],"published":"2017-06-11T17:00:00Z","modified":"2026-10-20T13:25:25Z","fixes":[{"ecosystem":"Debian:12","package":"mruby","fixed_in":["1.3.0-1"],"sources":["osv"]},{"ecosystem":"Debian:13","package":"mruby","fixed_in":["1.3.0-1"],"sources":["osv"]},{"ecosystem":"Debian:14","package":"mruby","fixed_in":["1.3.0-1"],"sources":["osv"]}],"affected":[{"source":"osv","ecosystem":"Debian:12","package":"mruby","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.3.0-1"}]}]},{"source":"osv","ecosystem":"Debian:13","package":"mruby","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.3.0-1"}]}]},{"source":"osv","ecosystem":"Debian:14","package":"mruby","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.3.0-1"}]}]},{"source":"osv","ecosystem":"Debian:9","package":"mruby","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.2.0+20161228+git30d5424a-1+deb9u1"}]}],"versions":["1.2.0+20161228+git30d5424a-1"],"bundled":6}],"products":[{"vendor":"debian","product":"debian_linux"},{"vendor":"mruby","product":"mruby"}],"references":[{"url":"https://github.com/mruby/mruby/issues/3486","tags":["x_refsource_CONFIRM","x_transferred","Exploit","Issue Tracking","Patch","Third Party Advisory","fix"]},{"url":"https://github.com/mruby/mruby/commit/5c114c91d4ff31859fcd84cf8bf349b737b90d99","tags":["x_refsource_CONFIRM","x_transferred","Issue Tracking","Patch","Third Party Advisory","fix"]},{"url":"https://lists.debian.org/debian-lts-announce/2022/05/msg00006.html","tags":["mailing-list","x_refsource_MLIST","x_transferred","Mailing List","Third Party Advisory","advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2017-9527"},{"url":"https://github.com/advisories/GHSA-fxr6-v647-jgmq"},{"url":"https://security-tracker.debian.org/tracker/CVE-2017-9527","tags":["advisory"]},{"url":"https://ubuntu.com/security/CVE-2017-9527","tags":["report"]},{"url":"https://www.cve.org/CVERecord?id=CVE-2017-9527","tags":["report"]}],"sources":{"cve":[{"id":"CVE-2017-9527","description":"The mark_context_stack function in gc.c in mruby through 1.2.0 allows attackers to cause a denial of service (heap-based use-after-free and application crash) or possibly have unspecified other impact via a crafted .rb file.","status":"published","published":"2017-06-11T17:00:00Z","modified":"2024-08-05T17:11:02.26Z","updated_at":"2026-11-02T14:33:13.96587Z"}],"euvd":[{"id":"EUVD-2017-18458","description":"The mark_context_stack function in gc.c in mruby through 1.2.0 allows attackers to cause a denial of service (heap-based use-after-free and application crash) or possibly have unspecified other impact via a crafted .rb file.","status":"published","published":"2017-06-11T17:00:00Z","modified":"2024-08-05T17:11:02Z","updated_at":"2026-11-03T02:23:27.678389Z"}],"ghsa":[{"id":"GHSA-fxr6-v647-jgmq","title":"The mark_context_stack function in gc.c in mruby through 1.2.0 allows attackers to cause a denial...","description":"The mark_context_stack function in gc.c in mruby through 1.2.0 allows attackers to cause a denial of service (heap-based use-after-free and application crash) or possibly have unspecified other impact via a crafted .rb file.","status":"published","published":"2022-05-07T00:01:26Z","modified":"2023-02-01T05:02:10Z","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"}],"cwes":["CWE-416"],"updated_at":"2026-11-02T14:49:51.819251Z"}],"nvd":[{"id":"CVE-2017-9527","description":"The mark_context_stack function in gc.c in mruby through 1.2.0 allows attackers to cause a denial of service (heap-based use-after-free and application crash) or possibly have unspecified other impact via a crafted .rb file.","status":"published","published":"2017-06-11T17:29:00.16Z","modified":"2026-06-17T01:28:18.387Z","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-416"],"updated_at":"2026-11-02T14:03:50.782497Z"}],"osv":[{"id":"CVE-2017-9527","description":"The 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file.","status":"published","published":"2017-06-11T17:29:00.16Z","modified":"2026-09-01T20:03:51.807509029Z","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":"2026-11-02T15:45:29.698576Z"},{"id":"UBUNTU-CVE-2017-9527","description":"The mark_context_stack function in gc.c in mruby through 1.2.0 allows attackers to cause a denial of service (heap-based use-after-free and application crash) or possibly have unspecified other impact via a crafted .rb file.","status":"withdrawn","published":"2017-06-11T17:29:00Z","modified":"2025-07-16T08:13:36.085813Z","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":"2026-11-02T15:54:16.154988Z"},{"id":"DLA-2996-1","title":"mruby - security update","status":"published","published":"2022-05-06T00:00:00Z","modified":"2026-03-09T01:23:12.964589Z","updated_at":"2026-11-02T15:46:11.189256Z"}]}}