A vulnerability was found in upstream release cryptsetup-2.2.0 where, there's a bug in LUKS2 format validation code, that is effectively invoked on every device/image presenting itself as LUKS2 container. The bug is in segments validation code in file 'lib/luks2/luks2_json_metadata.c' in function hdr_validate_segments(struct crypt_device *cd, json_object *hdr_jobj) where the code does not check for possible overflow on memory allocation used for intervals array (see statement "intervals = malloc(first_backup * sizeof(*intervals));"). Due to the bug, library can be *tricked* to expect such allocation was successful but for far less memory then originally expected. Later it may read data FROM image crafted by an attacker and actually write such data BEYOND allocated memory.
総合評価: CVE-2020-14382 は中リスク（54.1/100）。CVSS 深刻度は高。悪用される可能性が高い（EPSS 1.16%、63 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 | 0.28% | 1.16% | +0.88% |
| 2 | 2025-12-28 | 0.22% | 0.28% | +0.06% |
| 3 | 2025-12-27 | — | 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] |
| 6.8 | 2.0 | MEDIUM |
|
8.6 | 6.4 | [email protected] |
| vendor | priority | summary | link |
|---|---|---|---|
alpine
|
high | CVE-2020-14382: 1 source package rows (cryptsetup); 9 state rows across 9 repos (3.11-main, 3.12-main, 3.17-main, 3.18-main, 3.19-main, 3.20-main, 3.21-main, 3.22-main, edge-main); fixed 9, open 0. | https://security.alpinelinux.org/vuln/CVE-2020-14382 |
debian
|
not yet assigned | CVE-2020-14382 not yet assigned priority: Debian including 1 source packages (cryptsetup), 5 status rows across 5 suites (bookworm, bullseye, forky, sid, trixie): resolved 5. | https://security-tracker.debian.org/tracker/CVE-2020-14382 |
redhat
|
medium | — | https://access.redhat.com/security/cve/CVE-2020-14382 |
suse
|
medium | — | https://www.suse.com/security/cve/CVE-2020-14382/ |
ubuntu
|
medium | CVE-2020-14382 medium priority: Ubuntu including 1 source packages (cryptsetup), 5 status rows across 5 suites (bionic, focal, trusty, upstream, xenial): not-affected 3, needs-triage 1, released 1. | https://ubuntu.com/security/CVE-2020-14382 |
| ベンダー | 製品 | バージョン | 生の CPE |
|---|---|---|---|
| cryptsetup_project | cryptsetup | 2.2.0 | cpe:2.3:a:cryptsetup_project:cryptsetup:2.2.0:-:*:*:*:*:*:* |
| redhat | enterprise_linux | 8.0 | cpe:2.3:o:redhat:enterprise_linux:8.0:*:*:*:*:*:*:* |
| canonical | ubuntu_linux | 20.04 | cpe:2.3:o:canonical:ubuntu_linux:20.04:*:*:*:lts:*:*:* |
| fedoraproject | fedora | 31 | cpe:2.3:o:fedoraproject:fedora:31:*:*:*:*:*:*:* |
| fedoraproject | fedora | 33 | cpe:2.3:o:fedoraproject:fedora:33:*:*:*:*:*:*:* |