CVE-2021-35608 Denial of service in MySQL Server

What is CVE-2021-35608?

CVE-2021-35608 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 Server product of Oracle MySQL (component: Server: Group Replication Plugin). Supported versions that are affected are 8.0.26 and prior. Difficult to exploit 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 3.1 Base Score 5.3 (Availability impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H).

Which versions are affected by CVE-2021-35608?

It affects 4 products.

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

How do I fix CVE-2021-35608?

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-2021-35608 being exploited?

There is no known exploitation of CVE-2021-35608 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-6711, GHSA-9m2v-xggf-q272, UBUNTU-CVE-2021-35608.