High [CVE-2026-92870] Denial of Service via stack-based buffer overflow
This high-severity Red Hat Linux advisory covers CVE-2026-92870.
Aggregated and source-linked by VulniPulse. Data sources, validation and limitations.
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Summary
Denial of Service via stack-based buffer overflow. Red Hat rates this important (CVSS 7.5).
Weakness: CWE-787.
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 4 days ago·verify at source
Fixed versions
No fixed release is recorded yet. That does not prove no patch exists — confirm against the vendor advisory.
Official advisory · high-confidence parse· fetched 4 days ago·verify at source
Mitigation checklist
- Restrict network reachability to the Pgpool-II listening port (by default TCP port 9999) using firewalld so that only trusted client application hosts can initiate connections. To limit access to a trusted source subnet using firewalld rich rules, run: firewall-cmd --permanent --add-rich-rule='rule family="ipv4" source address="192.0.2.0/24" port port="9999" protocol="tcp" accept' firewall-cmd --reload If the Pgpool-II service is not required on the system, stop and disable it: systemctl stop pgpool systemctl disable pgpool Caveats: Restricting incoming traffic blocks untrusted network hosts from reaching the proxy. Stopping the daemon prevents client connections from being pooled or routed to PostgreSQL backend servers. Warning: Reloading firewall rules or stopping the service will disrupt active client connections and cause transient connectivity outages.
Official advisory · high-confidence parse· fetched 4 days ago·verify at source
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