CVE-2017-7659 Null dereference in Apache HTTP Server

What is CVE-2017-7659?

CVE-2017-7659 is a high-severity vulnerability in Apache Http Server, published on 26 Jul 2017. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

A maliciously constructed HTTP/2 request could cause mod_http2 in Apache HTTP Server 2.4.24, 2.4.25 to dereference a NULL pointer and crash the server process.

Weakness: CWE-476

Which versions are affected by CVE-2017-7659?

It affects 1 product.

Products include Apache Http Server.

How do I fix CVE-2017-7659?

Upgrade to a fixed version.

Is CVE-2017-7659 being exploited?

There is no known exploitation of CVE-2017-7659 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 ALPINE-CVE-2017-7659, CLEANSTART-2026-XO55123, DEBIAN-CVE-2017-7659, GHSA-64wg-r59g-c9jm.