CVE-2016-6225

medium

Published 2017-03-23 · Modified 2026-05-13

💬 Discuss on Community ✚ Propose mitigation

CVSS v3

5.9

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

CVSS v4 NEW

—

not yet in upstream

VIR risk

5.9

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.

Predictions

Exploit likelihood

69%

Patch ETA

—

Heuristic predictions, AS-IS, for prioritization only.

Mitigations

No mitigations published for this CVE yet.

The vendor-content worker queues fetches as references arrive (check back in a few minutes). Or — if you've already worked around this in production — publish your fix to the community-verified tier.

✚ Propose a mitigation on Community → Mitigations published via the community go through AI scoring + 2 human reviewers + 7-day silent objection window before landing here with source_tier=community-verified.

OS impact

OS	Version	Status
sles		affected
suse	42.1	affected
suse	42.2	affected
fedora	24	affected
fedora	25	affected

Application impact

Vendor	Product	Versions
percona	xtrabackup	`{"endIncluding":"2.3.5"}`
percona	xtrabackup	`2.4.0`
percona	xtrabackup	`2.4.1`
percona	xtrabackup	`2.4.2`
percona	xtrabackup	`2.4.3`
percona	xtrabackup	`2.4.4`

References

CWEs

CWE-326

Community-verified mitigations for this CVE will appear above when contributors publish them.

Verify integrity in audit chain (admin only). AS-IS.