vulnerability

Amazon Linux 2023: CVE-2021-44790: Important priority package update for httpd

Severity
7
CVSS
(AV:N/AC:L/Au:N/C:P/I:P/A:P)
Published
Dec 20, 2021
Added
Feb 17, 2025
Modified
Jul 4, 2025

Description

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.
A buffer overflow flaw in httpd's lua module could allow an out-of-bounds write. An attacker who is able to submit a crafted request to an httpd instance that is using the lua module may be able to cause an impact to confidentiality, integrity, and/or availability.

Solutions

amazon-linux-2023-upgrade-httpdamazon-linux-2023-upgrade-httpd-coreamazon-linux-2023-upgrade-httpd-core-debuginfoamazon-linux-2023-upgrade-httpd-debuginfoamazon-linux-2023-upgrade-httpd-debugsourceamazon-linux-2023-upgrade-httpd-develamazon-linux-2023-upgrade-httpd-filesystemamazon-linux-2023-upgrade-httpd-manualamazon-linux-2023-upgrade-httpd-toolsamazon-linux-2023-upgrade-httpd-tools-debuginfoamazon-linux-2023-upgrade-mod-ldapamazon-linux-2023-upgrade-mod-ldap-debuginfoamazon-linux-2023-upgrade-mod-luaamazon-linux-2023-upgrade-mod-lua-debuginfoamazon-linux-2023-upgrade-mod-proxy-htmlamazon-linux-2023-upgrade-mod-proxy-html-debuginfoamazon-linux-2023-upgrade-mod-sessionamazon-linux-2023-upgrade-mod-session-debuginfoamazon-linux-2023-upgrade-mod-sslamazon-linux-2023-upgrade-mod-ssl-debuginfo
Title
Rapid7 Labs

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