xbcrypt in Percona XtraBackup before 2.3.6 and 2.4.x before 2.4.5 does not properly set the initialization vector (IV) for encryption, which makes it easier for context-dependent attackers to obtain sensitive information from encrypted backup files via a Chosen-Plaintext attack. NOTE: this vulnerability exists because of an incomplete fix for CVE-2013-6394.
総合評価: CVE-2016-6225 は中リスク(45.9/100)。CVSS 深刻度は中。悪用される可能性が高い(EPSS 1.12%、62 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 | 0.45% | 1.12% | +0.68% |
| 2 | 2026-05-31 | 0.33% | 0.45% | +0.12% |
| 3 | 2026-03-22 | — | 0.33% | — |
EPSS の全履歴 (全 12 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 |
|---|---|---|---|---|---|---|
| 5.9 | 3.0 | MEDIUM |
|
2.2 | 3.6 | [email protected] |
| 4.3 | 2.0 | MEDIUM |
|
8.6 | 2.9 | [email protected] |
| vendor | priority | summary | link |
|---|---|---|---|
suse
|
low | — | https://www.suse.com/security/cve/CVE-2016-6225/ |
ubuntu
|
medium | CVE-2016-6225 medium priority: Ubuntu including 1 source packages (percona-xtrabackup), 15 status rows across 15 suites (artful, bionic, cosmic, disco, eoan, focal, groovy, hirsute, impish, precise, trusty, upstream, xenial, yakkety, zesty): DNE 6, ignored 6, released 2, not-affected 1. | https://ubuntu.com/security/CVE-2016-6225 |
| ベンダー | 製品 | バージョン | 生の CPE |
|---|---|---|---|
| percona | xtrabackup | <= 2.3.5 | cpe:2.3:a:percona:xtrabackup:*:*:*:*:*:*:*:* |
| percona | xtrabackup | 2.4.0 | cpe:2.3:a:percona:xtrabackup:2.4.0:rc1:*:*:*:*:*:* |
| percona | xtrabackup | 2.4.1 | cpe:2.3:a:percona:xtrabackup:2.4.1:*:*:*:*:*:*:* |
| percona | xtrabackup | 2.4.2 | cpe:2.3:a:percona:xtrabackup:2.4.2:*:*:*:*:*:*:* |
| percona | xtrabackup | 2.4.3 | cpe:2.3:a:percona:xtrabackup:2.4.3:*:*:*:*:*:*:* |
| percona | xtrabackup | 2.4.4 | cpe:2.3:a:percona:xtrabackup:2.4.4:*:*:*:*:*:*:* |
| opensuse | leap | 42.1 | cpe:2.3:o:opensuse:leap:42.1:*:*:*:*:*:*:* |
| opensuse | leap | 42.2 | cpe:2.3:o:opensuse:leap:42.2:*:*:*:*:*:*:* |
| fedoraproject | fedora | 24 | cpe:2.3:o:fedoraproject:fedora:24:*:*:*:*:*:*:* |
| fedoraproject | fedora | 25 | cpe:2.3:o:fedoraproject:fedora:25:*:*:*:*:*:*:* |
| URL | タグ |
|---|---|
| http://lists.opensuse.org/opensuse-updates/2017-01/msg00125.html | Third Party Advisory |
| http://lists.opensuse.org/opensuse-updates/2017-01/msg00126.html | Third Party Advisory |
| https://bugs.launchpad.net/percona-xtrabackup/+bug/1643949 | Issue Tracking Patch Third Party Advisory |
| https://github.com/percona/percona-xtrabackup/pull/266 | Issue Tracking Patch Third Party Advisory |
| https://github.com/percona/percona-xtrabackup/pull/267 | Issue Tracking Patch Third Party Advisory |
| https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/BAHI6ETS22FJCMLW7A6SICFKQXF5G2VI/ | |
| https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/ZBVCP6KLFVGG6HSGLHLTMZRD6C4IJSZP/ | |
| https://www.percona.com/blog/2017/01/12/cve-2016-6225-percona-xtrabackup-encryption-iv-not-set-properly/ | Vendor Advisory |