GHSA-c2h3-6mxw-7mvq · 深刻度： medium · エコシステム： go — Insufficiently restricted permissions on plugin directories
containerd is an open source container runtime with an emphasis on simplicity, robustness and portability. A bug was found in containerd where container root directories and some plugins had insufficiently restricted permissions, allowing otherwise unprivileged Linux users to traverse directory contents and execute programs. When containers included executable programs with extended permission bits (such as setuid), unprivileged Linux users could discover and execute those programs. When the UID of an unprivileged Linux user on the host collided with the file owner or group inside a container, the unprivileged Linux user on the host could discover, read, and modify those files. This vulnerability has been fixed in containerd 1.4.11 and containerd 1.5.7. Users should update to these version when they are released and may restart containers or update directory permissions to mitigate the vulnerability. Users unable to update should limit access to the host to trusted users. Update directory permission on container bundles directories.
総合評価: CVE-2021-41103 は中リスク（44.6/100）。CVSS 深刻度は高。悪用される可能性が高い（EPSS 0.48%、38 パーセンタイル） 推奨対応: 影響資産を整理し、修補計画に組み込んでください。
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。
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 | 0.25% | 0.48% | +0.23% |
| 2 | 2026-06-06 | 0.22% | 0.25% | +0.03% |
| 3 | 2026-05-26 | — | 0.22% | — |
EPSS の全履歴 （全 15 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 |
|---|---|---|---|---|---|---|
| 7.8 | 3.1 | HIGH |
|
1.8 | 5.9 | [email protected] |
| 5.9 | 3.0 | MEDIUM |
|
2.5 | 3.4 | [email protected] |
| 7.2 | 2.0 | HIGH |
|
3.9 | 10.0 | [email protected] |
GHSA-c2h3-6mxw-7mvq · 深刻度： medium · エコシステム： go — Insufficiently restricted permissions on plugin directories
| vendor | priority | summary | link |
|---|---|---|---|
alpine
|
— | CVE-2021-41103: 1 source package rows (containerd); 23 state rows across 7 repos (3.17-community, 3.18-community, 3.19-community, 3.20-community, 3.21-community, 3.22-community, edge-community); fixed 7, open 16. | https://security.alpinelinux.org/vuln/CVE-2021-41103 |
debian
|
not yet assigned | CVE-2021-41103 not yet assigned priority: Debian including 1 source packages (containerd), 5 status rows across 5 suites (bookworm, bullseye, forky, sid, trixie): resolved 5. | https://security-tracker.debian.org/tracker/CVE-2021-41103 |
gentoo
|
normal | CVE-2021-41103: 1 GLSA(s) (202401-31), 1 atom(s) (app-containers/containerd); latest impact normal. | https://bugs.gentoo.org/buglist.cgi?quicksearch=CVE-2021-41103 |
redhat
|
medium | — | https://access.redhat.com/security/cve/CVE-2021-41103 |
suse
|
medium | CVE-2021-41103 severity moderate: SUSE including 299 source package names (2.0.2-4.2.20:runc-1.0.2-23.1, amazon/suse-sles-15-sp1-chost-byos-v20210304-hvm-ssd-x86_64, …), 1248 product×package rows across 327 product lines (Container rancher/elemental-teal-iso/5.4, Container rancher/elemental-teal-rt/5.4, … (327 product lines)): Fixed 1094, Known Affected 154. | https://www.suse.com/security/cve/CVE-2021-41103/ |
ubuntu
|
high | CVE-2021-41103 high priority: Ubuntu including 1 source packages (containerd), 8 status rows across 8 suites (bionic, focal, hirsute, impish, jammy, trusty, upstream, xenial): released 7, DNE 1. | https://ubuntu.com/security/CVE-2021-41103 |
| ベンダー | 製品 | バージョン | 生の CPE |
|---|---|---|---|
| linuxfoundation | containerd | < 1.4.11 | cpe:2.3:a:linuxfoundation:containerd:*:*:*:*:*:*:*:* |
| linuxfoundation | containerd | >= 1.5.0, < 1.5.7 | cpe:2.3:a:linuxfoundation:containerd:*:*:*:*:*:*:*:* |
| fedoraproject | fedora | 34 | cpe:2.3:o:fedoraproject:fedora:34:*:*:*:*:*:*:* |
| fedoraproject | fedora | 35 | cpe:2.3:o:fedoraproject:fedora:35:*:*:*:*:*:*:* |
| debian | debian_linux | 11.0 | cpe:2.3:o:debian:debian_linux:11.0:*:*:*:*:*:*:* |