CVE-2021-35597 Denial of service in MySQL Server

What is CVE-2021-35597?

CVE-2021-35597 is a medium-severity denial of service vulnerability in Fedoraproject Fedora, published on 20 Oct 2021. Any signed-in user can exploit it over the network, with no action from the victim.

Official description

Vulnerability in the MySQL Client product of Oracle MySQL (component: C API). Supported versions that are affected are 8.0.26 and prior. Easily exploitable vulnerability allows low privileged attacker with network access via multiple protocols to compromise MySQL Client. Successful attacks of this vulnerability can result in unauthorized ability to cause a hang or frequently repeatable crash (complete DOS) of MySQL Client. CVSS 3.1 Base Score 6.5 (Availability impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H).

Which versions are affected by CVE-2021-35597?

It affects 4 products.

Products include Fedoraproject Fedora, Netapp Oncommand Insight, Netapp Snapcenter, Oracle Mysql.

How do I fix CVE-2021-35597?

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-2021-35597 being exploited?

There is no known exploitation of CVE-2021-35597 in the wild and no public exploit code.

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All Fedoraproject Fedora vulnerabilities

Sources

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

Also known as AZL-6708, GHSA-4mp5-w22q-hhpm, UBUNTU-CVE-2021-35597.