CVE-2022-37436
Apache HTTP Server: mod_proxy prior to 2.4.55 allows a backend to trigger HTTP response splitting
5.3
MEDIUM
CVSS 3.1
EPSS 0.54%
Description
Prior to Apache HTTP Server 2.4.55, a malicious backend can cause the response headers to be truncated early, resulting in some headers being incorporated into the response body. If the later headers have any security purpose, they will not be interpreted by the client.
How to fix CVE-2022-37436
To remediate CVE-2022-37436, upgrade the affected package to a fixed version below.
- —upgrade to 2.4.55-r0 or later
- —upgrade to 2.4.55 or later
- —upgrade to 2.4.56-1~deb11u1 or later
Is CVE-2022-37436 being exploited?
Low — EPSS is 0.5%, meaning exploitation activity has not been observed at scale.
Affected packages (3)
- from 0, < 2.4.55-r0
- from 0, < 2.4.55
- from 0, < 2.4.56-1~deb11u1
CVSS scores
| Source | Version | Severity | Vector |
|---|---|---|---|
| osv | CVSS 3.1 | MEDIUM5.3 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N |