CVE-2018-3056 Missing authorization in MySQL Server

What is CVE-2018-3056?

CVE-2018-3056 is a medium-severity missing authorization vulnerability in Canonical Ubuntu Linux, published on 18 Jul 2018. Any signed-in user can exploit it over the network, with no action from the victim.

Official description

Vulnerability in the MySQL Server component of Oracle MySQL (subcomponent: Server: Security: Privileges). Supported versions that are affected are 5.7.22 and prior and 8.0.11 and prior. Easily exploitable vulnerability allows low privileged attacker with network access via multiple protocols to compromise MySQL Server. Successful attacks of this vulnerability can result in unauthorized read access to a subset of MySQL Server accessible data. CVSS 3.0 Base Score 4.3 (Confidentiality impacts). CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N).

Which versions are affected by CVE-2018-3056?

It affects 6 products.

Products include Canonical Ubuntu Linux, Netapp Oncommand Insight, Netapp Oncommand Workflow Automation, Netapp Snapcenter, Netapp Storage Automation Store, Oracle Mysql.

How do I fix CVE-2018-3056?

Apply the vendor's patch.

Upgrade, and check permissions on every request on the server, not only in the interface. More about Missing authorization.

Is CVE-2018-3056 being exploited?

There is no known exploitation of CVE-2018-3056 in the wild and no public exploit code.

Other vulnerabilities in Canonical Ubuntu Linux

• CVE-2020-11651 SaltStack Salt Authentication Bypass Exploited Critical 9.8
• CVE-2020-7247 OpenSMTPD Remote Code Execution Exploited Critical 9.8
• CVE-2019-16928 Exim Out-of-bounds Write Exploited Critical 9.8
• CVE-2018-6789 Exim Buffer Overflow Exploited Critical 9.8
• CVE-2015-2590 Oracle Java SE and Java SE Embedded Remote Code Execution Exploited Critical 9.8

All Canonical Ubuntu Linux vulnerabilities

Sources

• CVE record
• NVD
• OSV
• GitHub advisory
• How this page is made

Also known as GHSA-x4fq-r4qv-4vvh, UBUNTU-CVE-2018-3056.