Medium
Security advisory
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.
- Products
- Not specified
- Affected versions
- Not specified
- Fixed versions
- Not specified
- CVEs
- CVE-2016-6225
- Confirmed fixed CVEs
- Not specified
- Updated in this feed
- 31 Oct 2026, 09:50 UTC · Revision 1
Source evidence
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.
osv:CVE-2016-6225
Complete source record
{
"id": "9372193fc7be8a475e6e2961057b8a05c8216a89e3bd5d470c4ec205bbdaba95",
"url": "https://osv.dev/vulnerability/CVE-2016-6225",
"method": "structured",
"payload": {
"kind": "advisory",
"title": "CVE-2016-6225",
"summary": "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.",
"evidence": "osv:CVE-2016-6225",
"products": [],
"severity": "medium",
"structured": {
"id": "CVE-2016-6225",
"aliases": [
"CVE-2016-6225"
],
"metrics": [
{
"type": "CVSS_V3",
"score": "CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N"
}
],
"affected": [
{
"ranges": [
{
"repo": "https://github.com/percona/percona-xtrabackup",
"type": "GIT",
"events": [
{
"introduced": "0"
},
{
"last_affected": "45cda897da4c6be5ce0bce127e7a1933229d4d16"
},
{
"introduced": "0d1198401797ef6f29ddc4604a5ce585ef476106"
},
{
"last_affected": "df58cf2ad82242fce89fa9b04f8328b46782dc39"
}
],
"database_specific": {
"extracted_events": [
{
"cpe": "cpe:2.3:a:percona:xtrabackup:*:*:*:*:*:*:*:*",
"range": [
{
"introduced": "0"
},
{
"last_affected": "2.3.5"
}
],
"source": "CPE_RANGE"
},
{
"cpe": "cpe:2.3:a:percona:xtrabackup:2.4.0:rc1:*:*:*:*:*:*",
"range": [
{
"introduced": "2.4.0-rc1"
},
{
"last_affected": "2.4.0-rc1"
}
],
"source": "CPE_STRING"
},
{
"cpe": "cpe:2.3:a:percona:xtrabackup:2.4.1:*:*:*:*:*:*:*",
"range": [
{
"introduced": "2.4.1"
},
{
"last_affected": "2.4.1"
}
],
"source": "CPE_STRING"
},
{
"cpe": "cpe:2.3:a:percona:xtrabackup:2.4.2:*:*:*:*:*:*:*",
"range": [
{
"introduced": "2.4.2"
},
{
"last_affected": "2.4.2"
}
],
"source": "CPE_STRING"
},
{
"cpe": "cpe:2.3:a:percona:xtrabackup:2.4.3:*:*:*:*:*:*:*",
"range": [
{
"introduced": "2.4.3"
},
{
"last_affected": "2.4.3"
}
],
"source": "CPE_STRING"
},
{
"cpe": "cpe:2.3:a:percona:xtrabackup:2.4.4:*:*:*:*:*:*:*",
"range": [
{
"introduced": "2.4.4"
},
{
"last_affected": "2.4.4"
}
],
"source": "CPE_STRING"
}
]
}
}
],
"versions": [
"2.4.0-rc1",
"2.4.1",
"2.4.2",
"2.4.3",
"2.4.4",
"percona-xtrabackup-2.4.4",
"percona-xtrabackup-2.3.5",
"mysql-5.6.11",
"clone-5.6.11-build",
"clone-5.6.9-rc-build",
"clone-5.6.7-rc-build",
"clone-5.6.6-m9-build",
"clone-5.6.3-m6-build",
"clone-5.6.3-m5-build",
"clone-5.4.0-build",
"mysqlsummit-0.2.1-build",
"mysqlsummit-0.2.1",
"mysqlsummit-0.2.0",
"mysqlsummit-0.2.0-build",
"clone-5.1.31-pv-0.2.0-build",
"mysql-5.1.4",
"clone-5.1.4-build",
"clone-5.1.0-build",
"mysql-4.0.4",
"mysql-4.0.2",
"mysql-3.23.36",
"mysql-3.23.33",
"mysql-3.23.32",
"mysql-3.23.31",
"mysql-3.23.30-gamma",
"mysql-3.23.28-gamma",
"mysql_4.0",
"mysql-3.23.22-beta"
],
"database_specific": {
"source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2016-6225.json"
}
}
],
"modified": "2026-10-20T10:48:06.963449848Z",
"provider": "osv",
"references": [
"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/",
"https://bugs.launchpad.net/percona-xtrabackup/+bug/1643949",
"https://github.com/percona/percona-xtrabackup/pull/266",
"https://github.com/percona/percona-xtrabackup/pull/267"
],
"provider_metadata": {
"unresolved_ranges": [
{
"cpes": [
"cpe:2.3:o:fedoraproject:fedora:24:*:*:*:*:*:*:*",
"cpe:2.3:o:fedoraproject:fedora:25:*:*:*:*:*:*:*"
],
"vendor_product": "fedoraproject:fedora",
"extracted_events": [
{
"range": [
{
"introduced": "24"
},
{
"last_affected": "24"
},
{
"introduced": "25"
},
{
"last_affected": "25"
}
],
"source": "CPE_STRING"
}
]
},
{
"cpes": [
"cpe:2.3:o:opensuse:leap:42.1:*:*:*:*:*:*:*",
"cpe:2.3:o:opensuse:leap:42.2:*:*:*:*:*:*:*"
],
"vendor_product": "opensuse:leap",
"extracted_events": [
{
"range": [
{
"introduced": "42.1"
},
{
"last_affected": "42.1"
},
{
"introduced": "42.2"
},
{
"last_affected": "42.2"
}
],
"source": "CPE_STRING"
}
]
}
]
}
},
"related_cves": [
{
"value": "CVE-2016-6225",
"evidence": "/id"
}
],
"security_relevant": true,
"severity_evidence": "/severity/0/score"
},
"source_id": "core-osv",
"document_id": 380052,
"published_at": "2017-03-23T16:59:00.247+00:00"
}