CVE-2021-41524
null pointer dereference in h2 fuzzing
7.5
HIGH
CVSS 3.1
EPSS 4.0%
Description
While fuzzing the 2.4.49 httpd, a new null pointer dereference was detected during HTTP/2 request processing, allowing an external source to DoS the server. This requires a specially crafted request. The vulnerability was recently introduced in version 2.4.49. No exploit is known to the project.
How to fix CVE-2021-41524
To remediate CVE-2021-41524, upgrade the affected package to a fixed version below.
- —upgrade to 2.4.50-r0 or later
- —upgrade to 2.4.50 or later
- —upgrade to 2.4.50-1 or later
Is CVE-2021-41524 being exploited?
Low — EPSS is 4.0%, meaning exploitation activity has not been observed at scale.
Affected packages (3)
- from 0, < 2.4.50-r0
- >= 2.4.49, < 2.4.50
- from 0, < 2.4.50-1
CVSS scores
| Source | Version | Severity | Vector |
|---|---|---|---|
| osv | CVSS 3.1 | HIGH7.5 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H |