{"id":"CVE-2021-38172","aliases":["EUVD-2021-24642","GHSA-f943-xchc-qcmp","UBUNTU-CVE-2021-38172"],"status":"published","title":"perM 0.4.0 has a Buffer Overflow related to strncpy. (Debian initially fixed this in 0.4.0-7.)","description":"perM 0.4.0 has a Buffer Overflow related to strncpy. (Debian initially fixed this in 0.4.0-7.)","severity":{"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","from":"nvd"},"epss":{"day":"2026-11-11","score":0.01826,"percentile":0.79095,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-120"],"published":"2022-02-05T17:26:21Z","modified":"2026-10-17T12:55:46Z","affected":[{"source":"osv","ecosystem":"Ubuntu:16.04:LTS","package":"perm","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["0.4.0-1"]},{"source":"osv","ecosystem":"Ubuntu:18.04:LTS","package":"perm","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["0.4.0-3"]},{"source":"osv","ecosystem":"Ubuntu:20.04:LTS","package":"perm","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["0.4.0-4","0.4.0-4build1"]},{"source":"osv","ecosystem":"Ubuntu:22.04:LTS","package":"perm","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["0.4.0-7","0.4.0-8"]},{"source":"osv","ecosystem":"Ubuntu:24.04:LTS","package":"perm","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["0.4.0-8"]},{"source":"osv","ecosystem":"Ubuntu:25.10","package":"perm","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["0.4.0-8"]},{"source":"osv","ecosystem":"Ubuntu:26.10","package":"perm","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["0.4.0-8","0.4.0-8build1"]},{"source":"osv","ecosystem":"Ubuntu:26.04:LTS","package":"perm","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["0.4.0-8"]}],"products":[{"vendor":"debian","product":"perm"}],"references":[{"url":"https://packages.qa.debian.org/p/perm.html","tags":["x_refsource_MISC","x_transferred","Issue Tracking","Patch","Vendor Advisory","report"]},{"url":"https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=993019","tags":["x_refsource_CONFIRM","x_transferred","Exploit","Vendor Advisory","report"]},{"url":"https://lists.debian.org/debian-med/2021/08/msg00016.html","tags":["x_refsource_MISC","x_transferred","Mailing List","Vendor Advisory","report"]},{"url":"https://tracker.debian.org/pkg/perm","tags":["x_refsource_MISC","x_transferred","Issue Tracking","Patch","Vendor Advisory","report"]},{"url":"https://salsa.debian.org/med-team/perm/-/commits/master/","tags":["x_refsource_MISC","x_transferred","Patch","Vendor Advisory","report"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2021-38172"},{"url":"https://github.com/advisories/GHSA-f943-xchc-qcmp"},{"url":"https://ubuntu.com/security/CVE-2021-38172","tags":["report"]},{"url":"https://www.cve.org/CVERecord?id=CVE-2021-38172","tags":["report"]}],"sources":{"cve":[{"id":"CVE-2021-38172","description":"perM 0.4.0 has a Buffer Overflow related to strncpy. (Debian initially fixed this in 0.4.0-7.)","status":"published","published":"2022-02-05T17:26:21Z","modified":"2024-08-04T01:37:16.379Z","updated_at":"2026-11-02T14:33:07.697752Z"}],"euvd":[{"id":"EUVD-2021-24642","description":"perM 0.4.0 has a Buffer Overflow related to strncpy. (Debian initially fixed this in 0.4.0-7.)","status":"published","published":"2022-02-05T17:26:21Z","modified":"2024-08-04T01:37:16Z","updated_at":"2026-11-03T03:24:25.244479Z"}],"ghsa":[{"id":"GHSA-f943-xchc-qcmp","title":"perM 0.4.0 has a Buffer Overflow related to strncpy. (Debian initially fixed this in 0.4.0-7.)","description":"perM 0.4.0 has a Buffer Overflow related to strncpy. (Debian initially fixed this in 0.4.0-7.)","status":"published","published":"2022-02-12T00:01:09Z","modified":"2023-02-03T05:05:21Z","cwes":["CWE-120"],"updated_at":"2026-11-02T14:53:43.432623Z"}],"nvd":[{"id":"CVE-2021-38172","description":"perM 0.4.0 has a Buffer Overflow related to strncpy. (Debian initially fixed this in 0.4.0-7.)","status":"published","published":"2022-02-05T18:15:07.707Z","modified":"2026-06-17T04:01:41.577Z","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":"2.0","score":7.5,"vector":"AV:N/AC:L/Au:N/C:P/I:P/A:P","level":"high","assessor":"primary"}],"cwes":["CWE-120"],"updated_at":"2026-11-02T14:07:04.178977Z"}],"osv":[{"id":"UBUNTU-CVE-2021-38172","description":"perM 0.4.0 has a Buffer Overflow related to strncpy. (Debian initially fixed this in 0.4.0-7.)","status":"published","published":"2022-02-05T18:15:00Z","modified":"2026-10-17T12:55:46.866014298Z","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":"2026-11-02T15:54:28.526929Z"}]}}