Medium [CVE-2026-85745] out-of-bounds read in ST_Area with crafted MULTIPOLYGON
This medium-severity Red Hat Linux advisory covers CVE-2026-85745; related products: Red Hat Hardened Images, Red Hat Enterprise Linux 10, Red Hat Enterprise Linux 8.
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Summary
out-of-bounds read in ST_Area with crafted MULTIPOLYGON. Red Hat rates this moderate (CVSS 4.3).
Weakness: CWE-125. Red Hat lists fixing advisory RHSA-2026:84689 with package mariadb11-8-main-11.8.9-0.1.hum1, mariadb10-11-main-10.11.18-4.1.1.hum1.
Affected products named by the advisory: Red Hat Hardened Images; Red Hat Enterprise Linux 10; Red Hat Enterprise Linux 8; Red Hat Enterprise Linux 9; and 2 more.
Affected products named by the advisory: Red Hat package: mariadb10.11; Red Hat package: mariadb11.8.
Affected versions
No affected-version range was extracted from the source record. The vendor advisory is authoritative. Check it before change work.
Official advisory · high-confidence parse· fetched 16 days ago·verify at source
- mariadb11-8-main-11.8.9-0.1.hum1
- mariadb10-11-main-10.11.18-4.1.1.hum1
- RHSA-2026:84689
Official advisory · high-confidence parse· fetched 16 days ago·verify at source
Mitigation checklist
- Restrict network access to the MariaDB service so that only trusted client systems or the local host can connect. 1. If the database is only accessed locally, configure MariaDB to listen exclusively on localhost by editing `/etc/my.cnf.d/mariadb-server.cnf` under the `[mysqld]` section: ``` bind-address = 127.0.0.1 ``` Then restart the MariaDB service: ``` systemctl restart mariadb ``` 2. If remote access is necessary, use firewalld to block untrusted networks and permit access only from designated IP addresses or subnets: ``` firewall-cmd --permanent --remove-service=mariadb firewall-cmd --permanent --add-rich-rule='rule family="ipv4" source address="192.168.1.0/24" service name="mariadb" accept' firewall-cmd --reload ``` Caveats: Restricting network reachability limits exposure to authorized networks and prevents untrusted network users from connecting, but it does not protect against malicious queries executed by already authenticated database accounts on permitted networks. Warning: Modifying firewall rules or binding addresses requires reloading firewall configurations or restarting the MariaDB service, which will terminate existing database connections and disrupt active services.
Official advisory · high-confidence parse· fetched 16 days ago·verify at source
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