NULL Pointer Dereference Affecting mod_proxy_html package, versions <1:2.4.37-47.module+el8.6.0+823+f143cee1.1


Severity

Recommended
medium

Based on Rocky Linux security rating.

Threat Intelligence

EPSS
43.21% (98th percentile)

Do your applications use this vulnerable package?

In a few clicks we can analyze your entire application and see what components are vulnerable in your application, and suggest you quick fixes.

Test your applications

Snyk Learn

Learn about NULL Pointer Dereference vulnerabilities in an interactive lesson.

Start learning
  • Snyk IDSNYK-ROCKY8-MODPROXYHTML-3199560
  • published5 Jan 2023
  • disclosed20 Dec 2021

Introduced: 20 Dec 2021

CVE-2021-44224  (opens in a new tab)
CWE-476  (opens in a new tab)

How to fix?

Upgrade Rocky-Linux:8 mod_proxy_html to version 1:2.4.37-47.module+el8.6.0+823+f143cee1.1 or higher.
This issue was patched in RLSA-2022:1915.

NVD Description

Note: Versions mentioned in the description apply only to the upstream mod_proxy_html package and not the mod_proxy_html package as distributed by Rocky-Linux. See How to fix? for Rocky-Linux:8 relevant fixed versions and status.

A crafted URI sent to httpd configured as a forward proxy (ProxyRequests on) can cause a crash (NULL pointer dereference) or, for configurations mixing forward and reverse proxy declarations, can allow for requests to be directed to a declared Unix Domain Socket endpoint (Server Side Request Forgery). This issue affects Apache HTTP Server 2.4.7 up to 2.4.51 (included).

References

CVSS Scores

version 3.1