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NULL Pointer Dereference Affecting httpd:2.4/httpd-manual package, versions <0:2.4.37-47.module_el8.6.0+2872+fe0ff7aa.1.alma

Severity

 Recommended
medium

Based on AlmaLinux security rating

    Threat Intelligence

    EPSS
    31.19% (98th percentile)

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  • Snyk ID SNYK-ALMALINUX8-HTTPD-5625604
  • 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/httpd-manual to version 0:2.4.37-47.module_el8.6.0+2872+fe0ff7aa.1.alma 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/httpd-manual package and not the httpd:2.4/httpd-manual 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
Expand this section

NVD

8.2 high
  • 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
Expand this section

SUSE

7.5 high
Expand this section

Red Hat

7.1 high