#VU33804 Input validation error in MariaDB - CVE-2016-3521

Vulnerability identifier: #VU33804

Vulnerability risk: Medium

CVSSv4.0: 4.9 [CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Green]

CVE-ID: CVE-2016-3521

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 authenticated user to perform a denial of service (DoS) attack.

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 remote authenticated users to affect availability via vectors related to Server: Types.

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/91932
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 authenticated user via the Internet.

Is there known malware, which exploits this vulnerability?

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