Vulnerability identifier: #VU33747

Vulnerability risk: Low

CVSSv3.1: 4.6 [CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:C/C:N/I:N/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2018-3174

CWE-ID: CWE-20

Exploitation vector: Local

Exploit availability: No

Vulnerable software:
MariaDB
Server applications / Database software

Vendor: MariaDB Foundation

Description

The vulnerability allows a local privileged user to a crash the entire system.

Vulnerability in the MySQL Server component of Oracle MySQL (subcomponent: Client programs). 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. Difficult to exploit vulnerability allows high privileged 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 unauthorized ability to cause a hang or frequently repeatable crash (complete DOS) of MySQL Server. CVSS 3.0 Base Score 5.3 (Availability impacts). CVSS Vector: (CVSS:3.0/AV:L/AC:H/PR:H/UI:N/S:C/C:N/I:N/A:H).

Mitigation
Install update from vendor's website.

Vulnerable software versions

MariaDB: 5.5.20 - 5.5.60

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External links
http://www.oracle.com/technetwork/security-advisory/cpuoct2018-4428296.html
http://www.securityfocus.com/bid/105612
http://www.securitytracker.com/id/1041888
http://access.redhat.com/errata/RHSA-2018:3655
http://access.redhat.com/errata/RHSA-2019:1258
http://lists.debian.org/debian-lts-announce/2018/11/msg00004.html
http://lists.debian.org/debian-lts-announce/2018/11/msg00007.html
http://security.gentoo.org/glsa/201908-24
http://security.netapp.com/advisory/ntap-20181018-0002/
http://usn.ubuntu.com/3799-1/
http://usn.ubuntu.com/3799-2/
http://www.debian.org/security/2018/dsa-4341

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Q & A

Can this vulnerability be exploited remotely?

No. This vulnerability can be exploited locally. The attacker should have authentication credentials and successfully authenticate on the system.

Is there known malware, which exploits this vulnerability?

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