CVE-2024-36387 Apache HTTP Server: DoS by Null pointer in websocket over HTTP/2
A null pointer dereference in Apache HTTP Server when serving WebSocket upgrades over HTTP/2 causes a server crash, leading to denial of service.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2024-36387?
CVE-2024-36387 is a medium-severity vulnerability in Apache Http Server, published on 1 Jul 2024. Any signed-in user can exploit it over the network, with no action from the victim.
Official description
Serving WebSocket protocol upgrades over a HTTP/2 connection could result in a Null Pointer dereference, leading to a crash of the server process, degrading performance.
Weakness: CWE-476
Which versions are affected by CVE-2024-36387?
1 open source package ship an affected version, including apache. It affects 2 products.
| Package | Affected | Fixed in |
|---|---|---|
apache Bitnami | From 2.4.55 | 2.4.60 |
Linux distribution packages (5)
mod_http2 AlmaLinux:9 | All versions | 2.0.26-2.el9_4.1 |
mod_http2 Red Hat:enterprise_linux:9::appstream | All versions | 0:2.0.26-2.el9_4.1 |
mod_http2-debuginfo Red Hat:enterprise_linux:9::appstream | All versions | 0:2.0.26-2.el9_4.1 |
mod_http2-debugsource Red Hat:enterprise_linux:9::appstream | All versions | 0:2.0.26-2.el9_4.1 |
mod_http2 Rocky Linux:9 | All versions | 0:2.0.26-2.el9_4.1 |
Products include Apache Http Server, Netapp Ontap.
How do I fix CVE-2024-36387?
Upgrade apache to 2.4.60 or later.
Is CVE-2024-36387 being exploited?
There is no known exploitation of CVE-2024-36387 in the wild and no public exploit code.
Other vulnerabilities in Apache Http Server
Sources
Also known as ALPINE-CVE-2024-36387, ALSA-2024:8680, AZL-43089, AZL-43119, BELL-CVE-2024-36387, BIT-apache-2024-36387 and 7 more.