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| purl | pkg:apache/httpd@2.4.47 |
| Vulnerability | Summary | Fixed by |
|---|---|---|
|
VCID-6b7y-562y-suce
Aliases: CVE-2021-31618 |
Apache HTTP Server protocol handler for the HTTP/2 protocol checks received request headers against the size limitations as configured for the server and used for the HTTP/1 protocol as well. On violation of these restrictions and HTTP response is sent to the client with a status code indicating why the request was rejected. This rejection response was not fully initialised in the HTTP/2 protocol handler if the offending header was the very first one received or appeared in a a footer. This led to a NULL pointer dereference on initialised memory, crashing reliably the child process. Since such a triggering HTTP/2 request is easy to craft and submit, this can be exploited to DoS the server. This issue affected mod_http2 1.15.17 and Apache HTTP Server version 2.4.47 only. Apache HTTP Server 2.4.47 was never released. |
Affected by 5 other vulnerabilities. |
| Vulnerability | Summary | Aliases |
|---|---|---|
| This package is not known to fix vulnerabilities. | ||
| Date | Actor | Action | Vulnerability | Source | VulnerableCode Version |
|---|---|---|---|---|---|
| 2026-04-01T12:36:23.111911+00:00 | Apache HTTPD Importer | Affected by | VCID-6b7y-562y-suce | https://httpd.apache.org/security/json/CVE-2021-31618.json | 38.0.0 |