{"id":"CVE-2021-30218","aliases":["ALPINE-CVE-2021-30218","BELL-CVE-2021-30218","EUVD-2021-17150","GHSA-xh35-9rm8-7v5q"],"status":"published","title":"samurai 1.2 has a NULL pointer dereference in writefile() in util.c via a crafted build file.","description":"samurai 1.2 has a NULL pointer dereference in writefile() in util.c via a crafted build file.","severity":{"version":"3.1","score":5.5,"vector":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H","level":"medium","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-11","score":0.00747,"percentile":0.55315,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":true},"cwes":["CWE-476"],"published":"2021-04-29T14:29:19Z","modified":"2026-10-23T17:17:56Z","fixes":[{"ecosystem":"Alpine:v3.13","package":"samurai","fixed_in":["1.2-r1"],"sources":["osv"]},{"ecosystem":"Alpine:v3.14","package":"samurai","fixed_in":["1.2-r1"],"sources":["osv"]},{"ecosystem":"Alpine:v3.15","package":"samurai","fixed_in":["1.2-r1"],"sources":["osv"]},{"ecosystem":"Alpine:v3.16","package":"samurai","fixed_in":["1.2-r1"],"sources":["osv"]},{"ecosystem":"Alpine:v3.17","package":"samurai","fixed_in":["1.2-r1"],"sources":["osv"]},{"ecosystem":"Alpine:v3.18","package":"samurai","fixed_in":["1.2-r1"],"sources":["osv"]},{"ecosystem":"Alpine:v3.19","package":"samurai","fixed_in":["1.2-r1"],"sources":["osv"]},{"ecosystem":"Alpine:v3.20","package":"samurai","fixed_in":["1.2-r1"],"sources":["osv"]},{"ecosystem":"Alpine:v3.21","package":"samurai","fixed_in":["1.2-r1"],"sources":["osv"]},{"ecosystem":"Alpine:v3.22","package":"samurai","fixed_in":["1.2-r1"],"sources":["osv"]},{"ecosystem":"Alpine:v3.23","package":"samurai","fixed_in":["1.2-r1"],"sources":["osv"]},{"ecosystem":"Alpine:v3.24","package":"samurai","fixed_in":["1.2-r1"],"sources":["osv"]}],"affected":[{"source":"osv","ecosystem":"Alpine:v3.13","package":"samurai","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.2-r1"}]}]},{"source":"osv","ecosystem":"Alpine:v3.14","package":"samurai","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.2-r1"}]}]},{"source":"osv","ecosystem":"Alpine:v3.15","package":"samurai","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.2-r1"}]}]},{"source":"osv","ecosystem":"Alpine:v3.16","package":"samurai","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.2-r1"}]}]},{"source":"osv","ecosystem":"Alpine:v3.17","package":"samurai","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.2-r1"}]}]},{"source":"osv","ecosystem":"Alpine:v3.18","package":"samurai","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.2-r1"}]}]},{"source":"osv","ecosystem":"Alpine:v3.19","package":"samurai","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.2-r1"}]}]},{"source":"osv","ecosystem":"Alpine:v3.20","package":"samurai","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.2-r1"}]}]},{"source":"osv","ecosystem":"Alpine:v3.21","package":"samurai","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.2-r1"}]}]},{"source":"osv","ecosystem":"Alpine:v3.22","package":"samurai","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.2-r1"}]}]},{"source":"osv","ecosystem":"Alpine:v3.23","package":"samurai","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.2-r1"}]}]},{"source":"osv","ecosystem":"Alpine:v3.24","package":"samurai","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.2-r1"}]}]}],"products":[{"vendor":"samurai_project","product":"samurai"}],"references":[{"url":"https://github.com/michaelforney/samurai/issues/67","tags":["x_refsource_MISC","x_transferred","Exploit","Issue Tracking","Third Party Advisory","report"]},{"url":"https://github.com/michaelforney/samurai/commit/e84b6d99c85043fa1ba54851ee500540ec206918","tags":["x_refsource_MISC","x_transferred","Patch","Third Party Advisory","fix"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2021-30218"},{"url":"https://github.com/advisories/GHSA-xh35-9rm8-7v5q"},{"url":"https://security.alpinelinux.org/vuln/CVE-2021-30218","tags":["advisory"]},{"url":"https://docs.bell-sw.com/security/cves/CVE-2021-30218","tags":["advisory"]}],"sources":{"cve":[{"id":"CVE-2021-30218","description":"samurai 1.2 has a NULL pointer dereference in writefile() in util.c via a crafted build file.","status":"published","published":"2021-04-29T14:29:19Z","modified":"2024-08-03T22:24:59.685Z","updated_at":"2026-11-02T14:33:02.20241Z"}],"euvd":[{"id":"EUVD-2021-17150","description":"samurai 1.2 has a NULL pointer dereference in writefile() in util.c via a crafted build file.","status":"published","published":"2021-04-29T14:29:19Z","modified":"2024-08-03T22:24:59Z","updated_at":"2026-11-03T03:24:42.963555Z"}],"ghsa":[{"id":"GHSA-xh35-9rm8-7v5q","title":"samurai 1.2 has a NULL pointer dereference in writefile() in util.c via a crafted build file.","description":"samurai 1.2 has a NULL pointer dereference in writefile() in util.c via a crafted build file.","status":"published","published":"2022-05-24T17:49:06Z","modified":"2023-01-29T05:06:07Z","cwes":["CWE-476"],"updated_at":"2026-11-02T14:45:57.128816Z"}],"nvd":[{"id":"CVE-2021-30218","description":"samurai 1.2 has a NULL pointer dereference in writefile() in util.c via a crafted build file.","status":"published","published":"2021-04-29T15:15:11.05Z","modified":"2026-06-17T03:49:52.83Z","cvss":[{"version":"3.1","score":5.5,"vector":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H","level":"medium","assessor":"primary"},{"version":"2.0","score":4.3,"vector":"AV:N/AC:M/Au:N/C:N/I:N/A:P","level":"medium","assessor":"primary"}],"cwes":["CWE-476"],"updated_at":"2026-11-02T14:06:52.81233Z"}],"osv":[{"id":"ALPINE-CVE-2021-30218","description":"samurai 1.2 has a NULL pointer dereference in writefile() in util.c via a crafted build file.","status":"published","published":"2021-04-29T15:15:11.05Z","modified":"2026-10-23T17:17:56.182333074Z","cvss":[{"version":"3.1","score":5.5,"vector":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H","level":"medium"}],"updated_at":"2026-11-02T15:27:48.646074Z"},{"id":"BELL-CVE-2021-30218","title":"CVE-2021-30218 does not affect BellSoft software","status":"withdrawn","published":"2023-08-31T12:15:31.553509Z","modified":"2026-01-26T09:47:30.518686Z","cvss":[{"version":"3.1","score":5.5,"vector":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H","level":"medium"}],"updated_at":"2026-11-02T15:28:15.925958Z"},{"id":"CVE-2021-30218","description":"samurai 1.2 has a NULL pointer dereference in writefile() in util.c via a crafted build file.","status":"published","published":"2021-04-29T15:15:11.05Z","modified":"2026-10-20T14:22:34.506102645Z","cvss":[{"version":"3.1","score":5.5,"vector":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H","level":"medium"}],"updated_at":"2026-11-02T15:44:19.483607Z"}]}}