Apache HTTP Server: CVSS (Max): 7.4

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             AUSCERT External Security Bulletin Redistribution

                               ESB-2022.1076
  CVE-2022-22721: Apache HTTP Server: core: Possible buffer overflow with
                very large or unlimited LimitXMLRequestBody
                               15 March 2022

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        AusCERT Security Bulletin Summary
        ---------------------------------

Product:           Apache HTTP Server
Publisher:         Apache
Operating System:  UNIX variants (UNIX, Linux, OSX)
                   Windows
Resolution:        Patch/Upgrade
CVE Names:         CVE-2022-22721  

Original Bulletin: 
   https://httpd.apache.org/security/vulnerabilities_24.html

Comment: CVSS (Max):  7.4 CVE-2022-22721 (CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:H)
         CVSS Source: SUSE
         Calculator:  https://www.first.org/cvss/calculator/3.1#CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:H

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Severity: low

Description:

If LimitXMLRequestBody is set to allow request bodies larger than 350MB
(defaults to 1M) on 32 bit systems an integer overflow happens which later
causes out of bounds writes.

This issue affects Apache HTTP Server 2.4.52 and earlier.

Credit:

Anonymous working with Trend Micro Zero Day Initiative

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