CVE-2016-8612 Denial of service in mod cluster

What is CVE-2016-8612?

CVE-2016-8612 is a medium-severity denial of service vulnerability in Apache Http Server, published on 9 Mar 2018. It can only be exploited from the same machine or local network, with no action from the victim.

Official description

Apache HTTP Server mod_cluster before version httpd 2.4.23 is vulnerable to an Improper Input Validation in the protocol parsing logic in the load balancer resulting in a Segmentation Fault in the serving httpd process.

Weakness: CWE-20

Which versions are affected by CVE-2016-8612?

It affects 3 products.

Products include Apache Http Server, Netapp Storage Automation Store, Redhat Enterprise Linux.

How do I fix CVE-2016-8612?

Upgrade to a fixed version.

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-2016-8612 being exploited?

There is no known exploitation of CVE-2016-8612 in the wild and no public exploit code.

Other vulnerabilities in Apache Http Server

• CVE-2021-42013 Apache HTTP Server Path Traversal Exploited Critical 9.8
• CVE-2024-38475 Apache HTTP Server Improper Escaping of Output Exploited Critical 9.1
• CVE-2021-40438 Apache HTTP Server-Side Request Forgery (SSRF) Exploited Critical 9.0
• CVE-2019-0211 Apache HTTP Server Privilege Escalation Exploited High 7.8
• CVE-2021-41773 Apache HTTP Server Path Traversal Exploited High 7.5

All Apache Http Server vulnerabilities

Sources

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

Also known as GHSA-pw68-p55m-86x8.