CVE-2020-14643 Denial of service in MySQL Server
High-privileged attackers can cause MySQL Server crashes and modify data via network access, requiring immediate patching.
- Exploited in the wild
- Not known
- Login needed
- An administrator
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2020-14643?
CVE-2020-14643 is a medium-severity denial of service vulnerability in Canonical Ubuntu Linux, published on 15 Jul 2020. An attacker needs administrator access to exploit it, with no action from the victim.
Official description
Vulnerability in the MySQL Server product of Oracle MySQL (component: Server: Security: Roles). Supported versions that are affected are 8.0.20 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 as well as unauthorized update, insert or delete access to some of MySQL Server accessible data. CVSS 3.1 Base Score 5.5 (Integrity and Availability impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:L/A:H).
Which versions are affected by CVE-2020-14643?
It affects 6 products.
Products include Canonical Ubuntu Linux, Netapp Active Iq Unified Manager, Netapp Oncommand Insight, Netapp Oncommand Workflow Automation, Netapp Snapcenter, Oracle Mysql.
How do I fix CVE-2020-14643?
Apply the vendor's patch.
Upgrade, then put limits on request size, rate and nesting depth so one client cannot exhaust the service. More about Denial of service.
Is CVE-2020-14643 being exploited?
There is no known exploitation of CVE-2020-14643 in the wild and no public exploit code.
Other vulnerabilities in Canonical Ubuntu Linux
Sources
Also known as GHSA-7rmj-95p6-6864, UBUNTU-CVE-2020-14643.