NULL Pointer Dereference Affecting httpd:2.4/mod_md package, versions <1:2.0.8-8.module_el8.6.0+2872+fe0ff7aa

Q: How to fix?

<p>Upgrade <code>AlmaLinux:8</code> <code>httpd:2.4/mod_md</code> to version 1:2.0.8-8.module_el8.6.0+2872+fe0ff7aa or higher.<br>This issue was patched in <code>ALSA-2022:1915</code>.</p>

Threat Intelligence

20.48% (97^th percentile)

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Snyk ID SNYK-ALMALINUX8-HTTPD-5625597
published 28 May 2023
disclosed 10 May 2022

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Introduced: 10 May 2022

CVE-2021-44224 Open this link in a new tab CWE-476 Open this link in a new tab

How to fix?

Upgrade AlmaLinux:8 httpd:2.4/mod_md to version 1:2.0.8-8.module_el8.6.0+2872+fe0ff7aa or higher.
This issue was patched in ALSA-2022:1915.

NVD Description

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

Attack Vector (AV)

Network
Attack Complexity (AC)

Low
Privileges Required (PR)

None
User Interaction (UI)

None

Scope (S)

Unchanged

Confidentiality (C)

None
Integrity (I)

Low
Availability (A)

High

NULL Pointer Dereference Affecting httpd:2.4/mod_md package, versions <1:2.0.8-8.module_el8.6.0+2872+fe0ff7aa

Severity

Based on AlmaLinux security rating