{"id":"CVE-2021-46705","aliases":["EUVD-2021-33363","GHSA-p6fp-whjx-7g5m","openSUSE-SU-2024:11926-1"],"status":"published","title":"grub2-once uses fixed file name in /var/tmp","description":"A Insecure Temporary File vulnerability in grub-once of grub2 in SUSE Linux Enterprise Server 15 SP4, openSUSE Factory allows local attackers to truncate arbitrary files. This issue affects: SUSE Linux Enterprise Server 15 SP4 grub2 versions prior to 2.06-150400.7.1. SUSE openSUSE Factory grub2 versions prior to 2.06-18.1.","severity":{"version":"3.1","score":5.1,"vector":"CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:L","level":"medium","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-09","score":0.0024,"percentile":0.15136,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":true},"cwes":["CWE-377"],"published":"2022-03-16T09:50:10Z","modified":"2026-06-17T04:15:24Z","fixes":[{"ecosystem":"openSUSE:Tumbleweed","package":"grub2","fixed_in":["2.06-18.1"],"sources":["osv"]}],"affected":[{"source":"osv","ecosystem":"openSUSE:Tumbleweed","package":"grub2","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2.06-18.1"}]}]}],"products":[{"vendor":"gnu","product":"grub2"},{"vendor":"suse","product":"opensuse factory"},{"vendor":"suse","product":"suse linux enterprise server 15 sp4"}],"references":[{"url":"https://bugzilla.suse.com/show_bug.cgi?id=1190474","tags":["x_refsource_CONFIRM","x_transferred","Exploit","Issue Tracking","Vendor Advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2021-46705"},{"url":"https://github.com/advisories/GHSA-p6fp-whjx-7g5m"},{"url":"","tags":["advisory"]},{"url":"https://www.suse.com/security/cve/CVE-2021-46705","tags":["web"]}],"sources":{"cve":[{"id":"CVE-2021-46705","title":"grub2-once uses fixed file name in /var/tmp","description":"A Insecure Temporary File vulnerability in grub-once of grub2 in SUSE Linux Enterprise Server 15 SP4, openSUSE Factory allows local attackers to truncate arbitrary files. This issue affects: SUSE Linux Enterprise Server 15 SP4 grub2 versions prior to 2.06-150400.7.1. SUSE openSUSE Factory grub2 versions prior to 2.06-18.1.","status":"published","published":"2022-03-16T09:50:10.172Z","modified":"2024-09-16T19:46:27.891Z","cvss":[{"version":"3.1","score":5.1,"vector":"CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:L","level":"medium","assessor":"cna"}],"cwes":["CWE-377"],"updated_at":"2026-11-02T14:33:03.320536Z"}],"euvd":[{"id":"EUVD-2021-33363","description":"A Insecure Temporary File vulnerability in grub-once of grub2 in SUSE Linux Enterprise Server 15 SP4, openSUSE Factory allows local attackers to truncate arbitrary files. This issue affects: SUSE Linux Enterprise Server 15 SP4 grub2 versions prior to 2.06-150400.7.1. SUSE openSUSE Factory grub2 versions prior to 2.06-18.1.","status":"published","published":"2022-03-16T09:50:10Z","modified":"2024-09-16T19:46:27Z","cvss":[{"version":"3.1","score":5.1,"vector":"CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:L","level":"medium"}],"updated_at":"2026-11-03T00:55:20.039201Z"}],"ghsa":[{"id":"GHSA-p6fp-whjx-7g5m","title":"A Insecure Temporary File vulnerability in grub-once of grub2 in SUSE Linux Enterprise Server 15...","description":"A Insecure Temporary File vulnerability in grub-once of grub2 in SUSE Linux Enterprise Server 15 SP4, openSUSE Factory allows local attackers to truncate arbitrary files. This issue affects: SUSE Linux Enterprise Server 15 SP4 grub2 versions prior to 2.06-150400.7.1. SUSE openSUSE Factory grub2 versions prior to 2.06-18.1.","status":"published","published":"2022-03-17T00:00:47Z","modified":"2023-01-27T05:00:45Z","cvss":[{"version":"3.1","score":5.5,"vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N","level":"medium"}],"cwes":["CWE-377"],"updated_at":"2026-11-02T14:41:44.80267Z"}],"nvd":[{"id":"CVE-2021-46705","description":"A Insecure Temporary File vulnerability in grub-once of grub2 in SUSE Linux Enterprise Server 15 SP4, openSUSE Factory allows local attackers to truncate arbitrary files. This issue affects: SUSE Linux Enterprise Server 15 SP4 grub2 versions prior to 2.06-150400.7.1. SUSE openSUSE Factory grub2 versions prior to 2.06-18.1.","status":"published","published":"2022-03-16T10:15:08.15Z","modified":"2026-06-17T04:15:24.463Z","cvss":[{"version":"3.1","score":5.1,"vector":"CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:L","level":"medium","assessor":"secondary"},{"version":"3.1","score":4.4,"vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:L","level":"medium","assessor":"primary"},{"version":"2.0","score":2.1,"vector":"AV:L/AC:L/Au:N/C:N/I:P/A:N","level":"low","assessor":"primary"}],"cwes":["CWE-377"],"updated_at":"2026-11-02T14:07:05.198719Z"}],"osv":[{"id":"openSUSE-SU-2024:11926-1","title":"grub2-2.06-18.1 on GA media","description":"These are all security issues fixed in the grub2-2.06-18.1 package on the GA media of openSUSE Tumbleweed.","status":"published","published":"2024-06-15T00:00:00Z","modified":"2026-02-04T03:31:30.903802Z","updated_at":"2026-11-02T16:58:35.485255Z"}]}}