Input validation error in mariadb (Alpine package)

1) Input validation error

EUVDB-ID: #VU33739

Risk: Medium

CVSSv3.1: 4.3 [CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2018-3063

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: Security: Privileges). Supported versions that are affected are 5.5.60 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 (Alpine package): 5.5.47-r0 - 10.1.32-r0

External links

http://git.alpinelinux.org/aports/commit/?id=ad3cd4ee72556149a46fca74da139cc7424bc58a
http://git.alpinelinux.org/aports/commit/?id=ec4a02c42dea8323d84536c79a6af0fc421ed261
http://git.alpinelinux.org/aports/commit/?id=71140a0c0110aa1f71769f912a029ed691d0aa67

Q & A

Can this vulnerability be exploited remotely?

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

Is there known malware, which exploits this vulnerability?

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