The sudoedit personality of Sudo before 1.9.5 may allow a local unprivileged user to perform arbitrary directory-existence tests by winning a sudo_edit.c race condition in replacing a user-controlled directory by a symlink to an arbitrary path.
総合評価: CVE-2021-23239 は公開エクスプロイトあり(50/100)。CVSS 深刻度は低。悪用される可能性が高い(EPSS 0.99%、58 パーセンタイル) 根拠: 公開エクスプロイトが 1 件参照されています(Exploit-DB)。 推奨対応: 公開エクスプロイトが確認されています。影響範囲の確認、緩和策の適用、パッチ適用を優先してください。
リスクは変動します。再評価に基づき、本ページの表示内容を更新しています。
| EDB-ID | ソース | 種別 | 公開 | リンク |
|---|---|---|---|---|
| — | nvd_ref | exploit_tag | Exploit-DB ↗ |
EPSS は日次で悪用されやすさの相対度合いを推定します。パーセンタイルは採点済み CVE の中での相対位置(高いほど相対的に深刻)を示します。
| # | 日付 | 旧 EPSS スコア | 新 EPSS スコア | Δ(新 − 旧) |
|---|---|---|---|---|
| 1 | 2026-06-15 | 0.10% | 0.99% | +0.89% |
| 2 | 2026-04-21 | 0.15% | 0.10% | -0.06% |
| 3 | 2026-02-01 | — | 0.15% | — |
EPSS の全履歴 (全 11 件)
この CVE の CVSS 指標。
| ベーススコア | バージョン | 深刻度 | ベクトル | 悪用しやすさ | 影響 | スコアの出典 |
|---|---|---|---|---|---|---|
| 2.5 | 3.1 | LOW |
|
1.0 | 1.4 | [email protected] |
| 1.9 | 2.0 | LOW |
|
3.4 | 2.9 | [email protected] |
| vendor | priority | summary | link |
|---|---|---|---|
alpine
|
low | CVE-2021-23239: 1 source package rows (sudo); 22 state rows across 11 repos (3.10-main, 3.11-main, 3.12-main, 3.17-community, 3.18-community, 3.19-community, 3.20-community, 3.21-community, 3.22-community, edge-community, edge-main); fixed 11, open 11. | https://security.alpinelinux.org/vuln/CVE-2021-23239 |
debian
|
not yet assigned | CVE-2021-23239 not yet assigned priority: Debian including 1 source packages (sudo), 5 status rows across 5 suites (bookworm, bullseye, forky, sid, trixie): resolved 5. | https://security-tracker.debian.org/tracker/CVE-2021-23239 |
gentoo
|
high | CVE-2021-23239: 1 GLSA(s) (202101-33), 1 atom(s) (app-admin/sudo); latest impact high. | https://bugs.gentoo.org/buglist.cgi?quicksearch=CVE-2021-23239 |
redhat
|
low | — | https://access.redhat.com/security/cve/CVE-2021-23239 |
suse
|
low | CVE-2021-23239 severity low: SUSE including 285 source package names (1.1.1.0.1.5.424:sudo-1.8.22-4.15.1, 1.2.0.0.1.5.430:sudo-1.8.22-4.15.1, …), 366 product×package rows across 90 product lines (Container ses/6/cephcsi/cephcsi, Container ses/6/rook/ceph, … (90 product lines)): Fixed 238, Known Affected 124, Known Not Affected 4. | https://www.suse.com/security/cve/CVE-2021-23239/ |
ubuntu
|
low | CVE-2021-23239 low priority: Ubuntu including 1 source packages (sudo), 16 status rows across 16 suites (bionic, focal, groovy, hirsute, impish, jammy, kinetic, lunar, mantic, noble, oracular, plucky, questing, trusty, upstream, xenial): released 14, needed 1, needs-triage 1. | https://ubuntu.com/security/CVE-2021-23239 |
| ベンダー | 製品 | バージョン | 生の CPE |
|---|---|---|---|
| sudo_project | sudo | < 1.8.32 | cpe:2.3:a:sudo_project:sudo:*:*:*:*:*:*:*:* |
| sudo_project | sudo | >= 1.9.0, < 1.9.5 | cpe:2.3:a:sudo_project:sudo:*:*:*:*:*:*:*:* |
| netapp | cloud_backup | — | cpe:2.3:a:netapp:cloud_backup:-:*:*:*:*:*:*:* |
| netapp | hci_management_node | — | cpe:2.3:a:netapp:hci_management_node:-:*:*:*:*:*:*:* |
| netapp | solidfire | — | cpe:2.3:a:netapp:solidfire:-:*:*:*:*:*:*:* |
| fedoraproject | fedora | 32 | cpe:2.3:o:fedoraproject:fedora:32:*:*:*:*:*:*:* |
| fedoraproject | fedora | 33 | cpe:2.3:o:fedoraproject:fedora:33:*:*:*:*:*:*:* |
| debian | debian_linux | 10.0 | cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:* |
| URL | タグ |
|---|---|
| https://bugzilla.suse.com/show_bug.cgi?id=CVE-2021-23239 | Exploit Issue Tracking Third Party Advisory |
| https://lists.debian.org/debian-lts-announce/2022/11/msg00007.html | Mailing List Third Party Advisory |
| https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/EE42Y35SMJOLONAIBNYNFC7J44UUZ2Y6/ | |
| https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/GMY4VSSBIND7VAYSN6T7XIWJRWG4GBB3/ | |
| https://security.gentoo.org/glsa/202101-33 | Third Party Advisory |
| https://security.netapp.com/advisory/ntap-20210129-0010/ | Third Party Advisory |
| https://www.sudo.ws/stable.html#1.9.5 | Release Notes Vendor Advisory |