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Vulnerability of Percona XtraBackup: information disclosure via Xbcrypt Encryption IV

Synthesis of the vulnerability 

An attacker can bypass access restrictions to data via Xbcrypt Encryption IV of Percona XtraBackup, in order to obtain sensitive information.
Impacted products: Fedora, openSUSE Leap, XtraBackup.
Severity of this bulletin: 1/4.
Creation date: 23/01/2017.
Références of this threat: CVE-2016-6225, FEDORA-2017-5a823376be, FEDORA-2017-6382ea8d57, openSUSE-SU-2017:0250-1, openSUSE-SU-2017:0251-1, VIGILANCE-VUL-21657.

Description of the vulnerability 

An attacker can bypass access restrictions to data via Xbcrypt Encryption IV of Percona XtraBackup, in order to obtain sensitive information.
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This threat note impacts software or systems such as Fedora, openSUSE Leap, XtraBackup.

Our Vigil@nce team determined that the severity of this cybersecurity note is low.

The trust level is of type confirmed by the editor, with an origin of document.

An attacker with a expert ability can exploit this vulnerability note.

Solutions for this threat 

Percona XtraBackup: version 2.4.5.
The version 2.4.5 is fixed:
  https://www.percona.com/

Percona XtraBackup: version 2.3.6.
The version 2.3.6 is fixed:
  https://www.percona.com/

Fedora: new percona-xtrabackup packages.
New packages are available:
  Fedora 24: percona-xtrabackup 2.3.6-1.fc24
  Fedora 25: percona-xtrabackup 2.3.6-1.fc25

openSUSE Leap: new xtrabackup packages.
New packages are available:
  openSUSE Leap 42.1: xtrabackup 2.2.12-8.1
  openSUSE Leap 42.2: xtrabackup 2.3.6-3.1
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