CVE-2016-6225

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.

Category

5.9
CVSS
Severity: Medium
CVSS 3.0 •
CVSS 2.0 •
EPSS 0.31%
Vendor Advisory opensuse.org Vendor Advisory opensuse.org Vendor Advisory fedoraproject.org Vendor Advisory fedoraproject.org Vendor Advisory percona.com
Affected: n/a n/a
Published at:
Updated at:

References

Link Tags
https://github.com/percona/percona-xtrabackup/pull/267 patch third party advisory issue tracking
http://lists.opensuse.org/opensuse-updates/2017-01/msg00126.html third party advisory vendor advisory
http://lists.opensuse.org/opensuse-updates/2017-01/msg00125.html third party advisory vendor advisory
https://bugs.launchpad.net/percona-xtrabackup/+bug/1643949 patch third party advisory issue tracking
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/ZBVCP6KLFVGG6HSGLHLTMZRD6C4IJSZP/ vendor advisory
https://github.com/percona/percona-xtrabackup/pull/266 patch third party advisory issue tracking
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/BAHI6ETS22FJCMLW7A6SICFKQXF5G2VI/ vendor advisory
https://www.percona.com/blog/2017/01/12/cve-2016-6225-percona-xtrabackup-encryption-iv-not-set-properly/ vendor advisory

Frequently Asked Questions

What is the severity of CVE-2016-6225?
CVE-2016-6225 has been scored as a medium severity vulnerability.
How to fix CVE-2016-6225?
To fix CVE-2016-6225, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2016-6225 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2016-6225 is being actively exploited. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
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