CVE-2016-6225: Weak Encryption
First published: Thu Mar 23 2017(Updated: )
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.
Credit: cve@mitre.org
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Percona XtraBackup | <=2.3.5 | |
| Percona XtraBackup | =2.4.0-rc1 | |
| Percona XtraBackup | =2.4.1 | |
| Percona XtraBackup | =2.4.2 | |
| Percona XtraBackup | =2.4.3 | |
| Percona XtraBackup | =2.4.4 | |
| SUSE Linux | =42.1 | |
| SUSE Linux | =42.2 | |
| Fedora | =24 | |
| Fedora | =25 |
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Reference Links
- http://lists.opensuse.org/opensuse-updates/2017-01/msg00125.html
- http://lists.opensuse.org/opensuse-updates/2017-01/msg00126.html
- https://bugs.launchpad.net/percona-xtrabackup/+bug/1643949
- https://github.com/percona/percona-xtrabackup/pull/266
- https://github.com/percona/percona-xtrabackup/pull/267
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/BAHI6ETS22FJCMLW7A6SICFKQXF5G2VI/
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/ZBVCP6KLFVGG6HSGLHLTMZRD6C4IJSZP/
- https://www.percona.com/blog/2017/01/12/cve-2016-6225-percona-xtrabackup-encryption-iv-not-set-properly/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/ZBVCP6KLFVGG6HSGLHLTMZRD6C4IJSZP/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/BAHI6ETS22FJCMLW7A6SICFKQXF5G2VI/
Frequently Asked Questions
What is the severity of CVE-2016-6225?
CVE-2016-6225 is categorized as a moderate severity vulnerability due to its potential for information disclosure through a Chosen-Plaintext attack.
How do I fix CVE-2016-6225?
To fix CVE-2016-6225, upgrade Percona XtraBackup to version 2.3.6 or 2.4.5 and later, which resolve the initialization vector issue.
Who is affected by CVE-2016-6225?
CVE-2016-6225 affects users of Percona XtraBackup versions prior to 2.3.6 and 2.4.x versions before 2.4.5, including specific versions in openSUSE and Fedora distributions.
What kind of attack can exploit CVE-2016-6225?
CVE-2016-6225 can be exploited through a Chosen-Plaintext attack, enabling attackers to potentially extract sensitive information from encrypted backups.
Is there a workaround for CVE-2016-6225?
There is no documented workaround for CVE-2016-6225; the only effective solution is to upgrade to a patched version of the software.
- agent/type
- collector/mitre-cve
- source/MITRE
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- agent/remedy
- agent/weakness
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- version/percona xtrabackup/2.3.5
- version/percona xtrabackup/2.4.0-rc1
- version/percona xtrabackup/2.4.1
- version/percona xtrabackup/2.4.2
- version/percona xtrabackup/2.4.3
- version/percona xtrabackup/2.4.4
- vendor/opensuse
- canonical/suse linux
- version/suse linux/42.1
- version/suse linux/42.2
- vendor/fedoraproject
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- version/fedora/24
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