CVE-2016-6225 Information

Description

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.

CVSS Vector

CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N

Reference

http://lists.opensuse.org/opensuse-updates/2017-01/msg00125.html http://lists.opensuse.org/opensuse-updates/2017-01/msg00126.html https://bugs.launchpad.net/percona-xtrabackup/+bug/1643949 https://github.com/percona/percona-xtrabackup/pull/266 https://github.com/percona/percona-xtrabackup/pull/267 https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/BAHI6ETS22FJCMLW7A6SICFKQXF5G2VI/ https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/ZBVCP6KLFVGG6HSGLHLTMZRD6C4IJSZP/ https://www.percona.com/blog/2017/01/12/cve-2016-6225-percona-xtrabackup-encryption-iv-not-set-properly/

Attack Complexity

HIGH

Privileges Required

NONE

User Interaction Required

NONE

Scope

NONE

Confidentiality Impact

UNCHANGED

Integrity Impact

HIGH

Availability Impact

NONE

Base Score

NONE

Base Severity

5.9