NULL Pointer Dereference Affecting httpd:2.4/httpd-devel package, versions <0:2.4.37-47.module+el8.6.0+14529+083145da.1


Severity

Recommended
medium

Based on Red Hat Enterprise Linux security rating.

Threat Intelligence

EPSS
43.21% (98th percentile)

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  • Snyk IDSNYK-RHEL8-HTTPD-4262549
  • published22 Dec 2021
  • disclosed20 Dec 2021

Introduced: 20 Dec 2021

CVE-2021-44224  (opens in a new tab)
CWE-476  (opens in a new tab)
CWE-918  (opens in a new tab)

How to fix?

Upgrade RHEL:8 httpd:2.4/httpd-devel to version 0:2.4.37-47.module+el8.6.0+14529+083145da.1 or higher.
This issue was patched in RHSA-2022:1915.

NVD Description

Note: Versions mentioned in the description apply only to the upstream httpd:2.4/httpd-devel package and not the httpd:2.4/httpd-devel package as distributed by RHEL. See How to fix? for RHEL: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