Input validation error in mariadb (Alpine package)

1) Input validation error

EUVDB-ID: #VU33790

Risk: Low

CVSSv4.0: 2.1 [CVSS:4.0/AV:N/AC:L/AT:P/PR:H/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear]

CVE-ID: CVE-2017-3243

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: Charsets). Supported versions that are affected are 5.5.53 and earlier. Difficult to exploit 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 v3.0 Base Score 4.4 (Availability impacts).

Mitigation

Install update from vendor's website.

Vulnerable software versions

mariadb (Alpine package): 5.5.47-r0 - 5.5.53-r0

CPE2.3

• cpe:2.3:o:alpine:mariadb_alpine_package:5.5.47-r0:*:*:*:*:alpine_linux:*:3.1
• cpe:2.3:o:alpine:mariadb_alpine_package:5.5.51-r0:*:*:*:*:alpine_linux:*:3.1
• cpe:2.3:o:alpine:mariadb_alpine_package:5.5.53-r0:*:*:*:*:alpine_linux:*:3.2

External links

https://git.alpinelinux.org/aports/commit/?id=a907a102e9dea884f13defde2d37b21d2fc01a0c
https://git.alpinelinux.org/aports/commit/?id=1a623f02f8070ad7c0a163d308230aed76256a7a
https://git.alpinelinux.org/aports/commit/?id=f75a55d7e8bfb8de318319e51b46c9040507bb33
https://git.alpinelinux.org/aports/commit/?id=7ea78917255c8fac1237c165434f38820f0f34db

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.