CVE-2016-6225

Publication date 23 March 2017

Last updated 25 August 2025

Ubuntu priority

Cvss 3 Severity Score

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.

Read the notes from the security team

Status

Show unmaintained releases

Package	Ubuntu Release	Status
percona-xtrabackup	21.10 impish	Not in release
	21.04 hirsute	Not in release
	20.10 groovy	Not in release
	20.04 LTS focal	Not in release
	19.10 eoan	Ignored end of life
	19.04 disco	Ignored end of life
	18.10 cosmic	Ignored end of life
	18.04 LTS bionic	Not affected
	17.10 artful	Ignored end of life
	17.04 zesty	Ignored end of life
	16.10 yakkety	Ignored end of life
	16.04 LTS xenial	Fixed 2.3.7-0ubuntu0.16.04.1
	14.04 LTS trusty	Not in release
	12.04 LTS precise	Not in release

Notes

rodrigo-zaiden

in bionic, the first release was based on 2.3.10, that already has the fix from the beginning (it was applied in 2.3.6)

Patch details

For informational purposes only. We recommend not to cherry-pick updates. How can I get the fixes?

Package	Patch details
percona-xtrabackup	Upstream: 04936ee Upstream: 83efde4

Severity score breakdown

Parameter	Value
Base score	5.9 · Medium
Attack vector	Network
Attack complexity	High
Privileges required	None
User interaction	None
Scope	Unchanged
Confidentiality	High
Integrity impact	None
Availability impact	None
Vector	CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N