Input validation error in MariaDB

1) Input validation error

EUVDB-ID: #VU33736

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-2018-3282

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.

Vulnerability in the MySQL Server component of Oracle MySQL (subcomponent: Server: Storage Engines). Supported versions that are affected are 5.5.61 and prior, 5.6.41 and prior, 5.7.23 and prior and 8.0.12 and prior. Easily exploitable vulnerability allows high privileged attacker with network access via multiple protocols to compromise MySQL Server. Successful attacks of this vulnerability can result in unauthorized ability to cause a hang or frequently repeatable crash (complete DOS) of MySQL Server. CVSS 3.0 Base Score 4.9 (Availability impacts). CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H).

Mitigation

Install update from vendor's website.

Vulnerable software versions

MariaDB: 5.5.20 - 5.5.60

CPE2.3

• cpe:2.3:a:mariadb_foundation:mariadb:5.5.20:*:*:*:*:*:*:*
• cpe:2.3:a:mariadb_foundation:mariadb:5.5.21:*:*:*:*:*:*:*
• cpe:2.3:a:mariadb_foundation:mariadb:5.5.22:*:*:*:*:*:*:*
• cpe:2.3:a:mariadb_foundation:mariadb:5.5.23:*:*:*:*:*:*:*
• cpe:2.3:a:mariadb_foundation:mariadb:5.5.24:*:*:*:*:*:*:*
• cpe:2.3:a:mariadb_foundation:mariadb:5.5.25:*:*:*:*:*:*:*
• cpe:2.3:a:mariadb_foundation:mariadb:5.5.27:*:*:*:*:*:*:*
• cpe:2.3:a:mariadb_foundation:mariadb:5.5.28:*:*:*:*:*:*:*
• cpe:2.3:a:mariadb_foundation:mariadb:5.5.28a:*:*:*:*:*:*:*
• cpe:2.3:a:mariadb_foundation:mariadb:5.5.29:*:*:*:*:*:*:*

External links

https://www.oracle.com/technetwork/security-advisory/cpuoct2018-4428296.html
https://www.securityfocus.com/bid/105610
https://www.securitytracker.com/id/1041888
https://access.redhat.com/errata/RHSA-2018:3655
https://access.redhat.com/errata/RHSA-2019:1258
https://access.redhat.com/errata/RHSA-2019:2327
https://lists.debian.org/debian-lts-announce/2018/11/msg00004.html
https://lists.debian.org/debian-lts-announce/2018/11/msg00007.html
https://security.gentoo.org/glsa/201908-24
https://security.netapp.com/advisory/ntap-20181018-0002/
https://usn.ubuntu.com/3799-1/
https://usn.ubuntu.com/3799-2/
https://www.debian.org/security/2018/dsa-4341

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.