Input validation error in MariaDB

1) Input validation error

EUVDB-ID: #VU33806

Risk: Medium

CVSSv4.0: 4.6 [CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Green]

CVE-ID: CVE-2016-5440

CWE-ID: CWE-20 - Improper input validation

Exploit availability: No

Description

The vulnerability allows a remote privileged 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 administrators to affect availability via vectors related to Server: RBR.

Mitigation

Install update from vendor's website.

Vulnerable software versions

MariaDB: 5.5.20 - 10.1.32

CPE2.3

• cpe:2.3:a:mariadb_foundation:mariadb:5.5.49:*:*:*:*:*:*:*
• cpe:2.3:a:mariadb_foundation:mariadb:10.0.25:*:*:*:*:*:*:*
• cpe:2.3:a:mariadb_foundation:mariadb:10.1.32:*:*:*:*:*:*:*

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/91953
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/

Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote authenticated privileged user via the Internet.

How the attacker can exploit this vulnerability?

The attacker would have to send a specially crafted request to the affected application in order to exploit this vulnerability.

Is there known malware, which exploits this vulnerability?

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