Vulnerability in the MySQL Server product of Oracle MySQL (component: C API). Supported versions that are affected are 5.7.36 and prior and 8.0.27 and prior. Difficult to exploit 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. External References: https://www.oracle.com/security-alerts/cpuoct2022.html#AppendixMSQL
The Oracle advisory states that this issue was fixed upstream in version 8.0.28. The mysql packages as shipped in following Red Hat products were previously updated to a version that contains the fix (8.0.30) via the following errata: mysql:8.0 module in Red Hat Enterprise Linux 8 https://access.redhat.com/errata/RHSA-2022:7119 rh-mysql80-mysql in Red Hat Software Collections https://access.redhat.com/errata/RHSA-2022:6518
MariaDB upstream states that this issue was fixed in MariaDB versions 10.2.42, 10.3.33, 10.4.23, 10.5.14, 10.6.6 and 10.7.2. The mariadb packages as shipped in following Red Hat products were previously updated to a version that contains the fix via the following errata: mariadb:10.3 module in Red Hat Enterprise Linux 8 https://access.redhat.com/errata/RHSA-2022:6443 mariadb:10.5 module in Red Hat Enterprise Linux 8 https://access.redhat.com/errata/RHSA-2022:5826 rh-mariadb103-mariadb in Red Hat Software Collections https://access.redhat.com/errata/RHSA-2022:6306 rh-mariadb105-mariadb in Red Hat Software Collections https://access.redhat.com/errata/RHSA-2022:5759
This bug is now closed. Further updates for individual products will be reflected on the CVE page(s): https://access.redhat.com/security/cve/cve-2022-21595