GHSA-6g8r-74qp-6859 · 深刻度: medium · エコシステム: rust — uutils coreutils has a Time-of-check Time-of-use (TOCTOU) Race Condition
A Time-of-Check to Time-of-Use (TOCTOU) vulnerability exists in the chcon utility of uutils coreutils during recursive operations. The implementation resolves recursive targets using a fresh path lookup (via fts_accpath) rather than binding the traversal and label application to the specific directory state encountered during traversal. Because these operations are not anchored to file descriptors, a local attacker with write access to a directory tree can exploit timing-sensitive rename or symbolic link races to redirect a privileged recursive relabeling operation to unintended files or directories. This vulnerability breaks the hardening expectations for SELinux administration workflows and can lead to the unauthorized modification of security labels on sensitive system objects.
総合評価: CVE-2026-35376 は低リスク(18.3/100)。CVSS 深刻度は中。悪用される可能性が高い(EPSS 0.09%、1 パーセンタイル) 推奨対応: 総合リスクは低く緊急対応は不要です。通常の保守サイクルでパッチを適用し、CVSS / EPSS が上昇したら優先度を見直してください。
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。
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 | 0.01% | 0.09% | +0.08% |
| 2 | 2026-04-23 | — | 0.01% | — |
EPSS の全履歴 (全 2 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 |
|---|---|---|---|---|---|---|
| 4.5 | 3.1 | MEDIUM |
|
1.0 | 3.4 | [email protected] |
| 5.8 | 3.1 | MEDIUM |
|
1.0 | 4.7 | [email protected] |
GHSA-6g8r-74qp-6859 · 深刻度: medium · エコシステム: rust — uutils coreutils has a Time-of-check Time-of-use (TOCTOU) Race Condition
| vendor | priority | summary | link |
|---|---|---|---|
debian
|
not yet assigned | CVE-2026-35376 not yet assigned priority: Debian including 1 source packages (rust-coreutils), 4 status rows across 4 suites (bookworm, forky, sid, trixie): open 4. | https://security-tracker.debian.org/tracker/CVE-2026-35376 |
ubuntu
|
medium | CVE-2026-35376 medium priority: Ubuntu including 1 source packages (rust-coreutils), 5 status rows across 5 suites (jammy, noble, questing, resolute, upstream): needed 2, DNE 1, not-affected 1, released 1. | https://ubuntu.com/security/CVE-2026-35376 |
| URL | タグ |
|---|---|
| https://github.com/uutils/coreutils/pull/11402 | Issue Tracking |
| https://github.com/uutils/coreutils/releases/tag/0.8.0 | Release Notes |