Resource Exhaustion Affecting httpd-filesystem package, versions <0:2.4.54-3.amzn2023.0.4


Severity

Recommended
high

Based on Amazon Linux security rating.

Threat Intelligence

Exploit Maturity
Mature
EPSS
16.83% (97th percentile)

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  • Snyk IDSNYK-AMZN2023-HTTPDFILESYSTEM-3347567
  • published7 Mar 2023
  • disclosed20 Dec 2021

Introduced: 20 Dec 2021

CVE-2021-44790  (opens in a new tab)
CWE-400  (opens in a new tab)
CWE-787  (opens in a new tab)

How to fix?

Upgrade Amazon-Linux:2023 httpd-filesystem to version 0:2.4.54-3.amzn2023.0.4 or higher.
This issue was patched in ALAS2023-2023-072.

NVD Description

Note: Versions mentioned in the description apply only to the upstream httpd-filesystem package and not the httpd-filesystem package as distributed by Amazon-Linux. See How to fix? for Amazon-Linux:2023 relevant fixed versions and status.

A carefully crafted request body can cause a buffer overflow in the mod_lua multipart parser (r:parsebody() called from Lua scripts). The Apache httpd team is not aware of an exploit for the vulnerabilty though it might be possible to craft one. This issue affects Apache HTTP Server 2.4.51 and earlier.

References

CVSS Scores

version 3.1