#VU33803 Input validation error in MariaDB - CVE-2016-3477

Vulnerability identifier: #VU33803

Vulnerability risk: High

CVSSv4.0: 4.8 [CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Amber]

CVE-ID: CVE-2016-3477

CWE-ID: CWE-20

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
MariaDB
Server applications / Database software

Vendor: MariaDB Foundation

Description

The vulnerability allows a remote non-authenticated attacker to execute arbitrary code.

Unspecified vulnerability in Oracle MySQL 5.5.49 and earlier, 5.6.30 and earlier, and 5.7.12 and earlier and MariaDB before 5.5.50, 10.0.x before 10.0.26, and 10.1.x before 10.1.15 allows local users to affect confidentiality, integrity, and availability via vectors related to Server: Parser. Scores reflect additional information provided in http://www.oracle.com/ocom/groups/public/@otn/documents/webcontent/3089849.xml: "Difficult to exploit vulnerability allows unauthenticated attacker with logon to the infrastructure where MySQL Server executes to compromise MySQL Server. While the vulnerability is in MySQL Server, attacks may significantly impact additional products. Successful attacks of this vulnerability can result in takeover of MySQL Server."

Mitigation
Install update from vendor's website.

Vulnerable software versions

MariaDB: 5.5.20 - 5.5.49, 10.0.0 - 10.0.25, 10.1.0 - 10.1.32

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External links
https://lists.opensuse.org/opensuse-updates/2016-09/msg00042.html
https://rhn.redhat.com/errata/RHSA-2016-1480.html
https://rhn.redhat.com/errata/RHSA-2016-1601.html
https://rhn.redhat.com/errata/RHSA-2016-1602.html
https://rhn.redhat.com/errata/RHSA-2016-1603.html
https://rhn.redhat.com/errata/RHSA-2016-1604.html
https://rhn.redhat.com/errata/RHSA-2016-1637.html
https://www.debian.org/security/2016/dsa-3624
https://www.debian.org/security/2016/dsa-3632
https://www.oracle.com/technetwork/security-advisory/cpujul2016-2881720.html
https://www.oracle.com/technetwork/topics/security/linuxbulletinjul2016-3090544.html
https://www.securityfocus.com/bid/91787
https://www.securityfocus.com/bid/91902
https://www.securitytracker.com/id/1036362
https://www.ubuntu.com/usn/USN-3040-1
https://www-01.ibm.com/support/docview.wss?uid=isg3T1024168
https://mariadb.com/kb/en/mariadb/mariadb-10026-release-notes/
https://mariadb.com/kb/en/mariadb/mariadb-10115-release-notes/
https://mariadb.com/kb/en/mariadb/mariadb-5550-release-notes/

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Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.