Vulnerability · Published Jul 1, 2024 · Assigned by apache
CVE-2024-36387Apache HTTP Server: DoS by Null pointer in websocket over HTTP/2
Medium 5.4
In plain English
A medium-severity null pointer dereference in Apache HTTP Server from Apache Software Foundation. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 1.7% (higher than 78% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.
Severity (CVSS 3.1)5.4Medium
Exploit odds (30 days)1.7%top 22.5% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known
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.
Affected packages & fixed versions
| Ecosystem | Package | Fixed in | Advisory |
|---|---|---|---|
| AlmaLinux:9 | mod_http2 | 2.0.26-2.el9_4.1 | ALSA-2024:8680 |
| Alpine:v3.20 | apache2 | 2.4.60-r0 | ALPINE-CVE-2024-36387 |
| Alpine:v3.21 | apache2 | 2.4.60-r0 | ALPINE-CVE-2024-36387 |
| Alpine:v3.22 | apache2 | 2.4.60-r0 | ALPINE-CVE-2024-36387 |
| Alpine:v3.23 | apache2 | 2.4.60-r0 | ALPINE-CVE-2024-36387 |
| Alpine:v3.24 | apache2 | 2.4.60-r0 | ALPINE-CVE-2024-36387 |
| Debian:12 | apache2 | 2.4.61-1~deb12u1 | DSA-5729-1 |
| Debian:12 | apache2 | 2.4.61-1~deb12u1 | DEBIAN-CVE-2024-36387 |
| Debian:13 | apache2 | 2.4.60-1 | DEBIAN-CVE-2024-36387 |
| Debian:14 | apache2 | 2.4.60-1 | DEBIAN-CVE-2024-36387 |
| Rocky Linux:9 | mod_http2 | 0:2.0.26-2.el9_4.1 | RLSA-2024:8680 |
| Ubuntu:22.04:LTS | apache2 | 2.4.52-1ubuntu4.10 | USN-6885-1 |
| Ubuntu:22.04:LTS | apache2 | 2.4.52-1ubuntu4.10 | UBUNTU-CVE-2024-36387 |
| Ubuntu:24.04:LTS | apache2 | 2.4.58-1ubuntu8.2 | UBUNTU-CVE-2024-36387 |
| Ubuntu:24.04:LTS | apache2 | 2.4.58-1ubuntu8.2 | USN-6885-1 |
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| Apache Software Foundation | Apache HTTP Server | 2.4.55 – through 2.4.59 |
Weakness: CWE-476 · Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:L