Updated: 2025-08-20 03:07:32.852401
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.
| Links | NIST | CIRCL | RHEL | Ubuntu |
| Severity | Score | |
|---|---|---|
| CVSS Version 2.x | 0.0 | |
| CVSS Version 3.x | MEDIUM | 5.3 |
| OS name | Project name | Version | Score | Severity | Status | Errata | Last updated | Statement |
|---|---|---|---|---|---|---|---|---|
| AlmaLinux 9.2 ESU | httpd | 2.4.53 | 5.3 | MEDIUM | Ignored | 2023-11-08 04:07:59 | Exploitation requires Apache httpd to be acting as a reverse proxy (mod_proxy) and for the upstream ... | |
| CentOS 6 ELS | httpd | 2.2.15 | 5.3 | MEDIUM | Ignored | 2023-01-25 04:03:31 | Ignored due to low severity | |
| CentOS 7 ELS | httpd | 2.4.6 | 5.3 | MEDIUM | Ignored | 2023-09-19 09:30:21 | Ignored due to low severity | |
| CentOS 8.4 ELS | httpd | 2.4.37 | 5.3 | MEDIUM | Released | CLSA-2023:1678135884 | 2023-03-06 16:05:00 | |
| CentOS 8.5 ELS | httpd | 2.4.37 | 5.3 | MEDIUM | Released | CLSA-2023:1678136294 | 2023-03-06 16:05:00 | |
| CloudLinux 6 ELS | httpd | 2.2.15 | 5.3 | MEDIUM | Ignored | 2023-01-25 04:03:31 | Ignored due to low severity | |
| Oracle Linux 6 ELS | httpd | 2.2.15 | 5.3 | MEDIUM | Ignored | 2023-01-25 04:03:32 | Ignored due to low severity | |
| Ubuntu 16.04 ELS | apache2 | 2.4.18 | 5.3 | MEDIUM | Released | CLSA-2023:1675985294 | 2023-02-09 19:59:12 | |
| Ubuntu 18.04 ELS | apache2 | 2.4.29 | 5.3 | MEDIUM | Already Fixed | 2023-11-06 08:42:55 |