CVE-2017-3453 Denial of service in MySQL Server
A low-privileged attacker can cause a complete denial of service in MySQL Server via the Optimizer component.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2017-3453?
CVE-2017-3453 is a medium-severity denial of service vulnerability in Debian Debian Linux, published on 24 Apr 2017. 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: Optimizer). Supported versions that are affected are 5.5.54 and earlier, 5.6.35 and earlier and 5.7.17 and earlier. 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 ability to cause a hang or frequently repeatable crash (complete DOS) of MySQL Server. CVSS 3.0 Base Score 6.5 (Availability impacts). CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H).
Which versions are affected by CVE-2017-3453?
It affects 9 products.
Products include Debian Debian Linux, Mariadb Mariadb, Oracle Mysql, Redhat Enterprise Linux Desktop, Redhat Enterprise Linux Eus, Redhat Enterprise Linux Server and 3 more.
How do I fix CVE-2017-3453?
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-2017-3453 being exploited?
There is no known exploitation of CVE-2017-3453 in the wild and no public exploit code.
Other vulnerabilities in Debian Debian Linux
Sources
Also known as ALPINE-CVE-2017-3453, GHSA-7967-57vf-g674, UBUNTU-CVE-2017-3453.